identifier	taxonID	type	CVterm	format	language	title	description	additionalInformationURL	UsageTerms	rights	Owner	contributor	creator	bibliographicCitation
B54B4F18FF9DFFADFEF2EB00CAAB86AC.text	B54B4F18FF9DFFADFEF2EB00CAAB86AC.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Chryxus Champion 1898	<div><p>Genus Chryxus Champion, 1898</p><p>Chryxus Champion, 1898: 181 . — Wygodzinsky 1946: 177 (discussion); 1949: 21 (catalogue, fauna of New World). — Usinger 1952: 56 (discussion). — Maldonado 1990: 21 (catalogue). — Schuh &amp; Slater 1995: 156 (listed). — Forero 2004: 142 (discussion). — Gil-Santana et al. 2007: 78 (in key, key to species). — Weirauch 2012: 119 (in key). — Gil-Santana et al. 2015: 311 (in key); 2022: 161, 174 (redescription, distribution, in key, key to species, discussion). — Schuh &amp; Weirauch 2020: 356 (listed). — Masonick et al. 2024: 26 (listed).</p><p>TYPE SPECIES. — Chryxus tomentosus Champion, 1898 (by monotypy).</p><p>DIAGNOSIS. — Recognized within the Chryxini by the following combination of character states: body small-sized, 3-6 mm in length; head wider than long, strongly declined anteriorly; ocellus absent; corium of hemelytron with distinct venation; membrane of hemelytron with single central cell and single vein emitting from apex of cell; abdominal connexivum bicolorous.</p><p>DIVERSITY AND DISTRIBUTION. — Chryxus contained three species prior to this study, all distributed in the Neotropical Region (Gil-Santana et al. 2022). A new species is described herein, representing a new record of the genus from Suriname.</p></div>	https://treatment.plazi.org/id/B54B4F18FF9DFFADFEF2EB00CAAB86AC	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Chen, Zhuo;Hartong, Charlotte;Li, Hu;Cai, Wanzhi	Chen, Zhuo, Hartong, Charlotte, Li, Hu, Cai, Wanzhi (2026): Descriptions of two new species of the enigmatic Neotropical tribe Chryxini (Hemiptera, Heteroptera, Reduviidae) and a key to genera and species with single membrane cell. Zoosystema 48 (7): 197-209, DOI: 10.5252/zoosystema2026v48a7
B54B4F18FF9DFFA1FC8AEC84CFD6869E.text	B54B4F18FF9DFFA1FC8AEC84CFD6869E.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Chryxus willemsei Chen, Hartong & Cai 2026	<div><p>Chryxus willemsei Chen, Hartong &amp; Cai, n. sp.</p><p>(Figs 1-3)</p><p>urn:lsid:zoobank.org:act: 7872D7FC-23BA-4D0E-AA0D-5A0DB3FDA172</p><p>TYPE MATERIAL. — Holotype. Suriname • ♂; Commewijne District, Mapana Creek; 25.VIII.1961; J. P. Schulz leg.; RMNH. INS. 1629746.</p><p>DIAGNOSIS. — Body length 4.5 mm, generally blackish brown (Fig. 1); median longitudinal sulcus on posterior pronotal lobe wide in anterior portion, gradually narrowed posteriorly (Fig. 2A); apex of scutellum curved upwards (Fig. 2B); meso- and metafemora whitish in basal third, yellowish to blackish brown in apical parts (Fig. 1A, C); hemelytron with corium decorated with one broad, oblique, whitish band from base to inner angle, membrane with three clear whitish patches (Fig. 2D); paramere with one large, peculiar, branched process on inner surface, with upper branch short, triangular, lower branch long, spine-like (Fig. 3 C-E).</p><p>ETYMOLOGY. — The specific epithet is dedicated to the Dutch entomologist Luc Willemse (RMNH) for his kind support to our study of the Reduviidae .</p><p>DISTRIBUTION. — Suriname: Commewijne (Fig. 7).</p><p>DESCRIPTION</p><p>Male</p><p>Coloration. Generally blackish brown (Fig. 1). Head dark brown, slightly darkened along interocular sulcus; collum lighter (Fig. 2A). Antennal scape and pedicel yellowish brown; flagellomeres dark brown (Fig. 1). Labium brown (Fig. 2B, C). Median longitudinal sulcus on posterior lobe of pronotum tinged with reddish brown. Scutellum with basal part slightly lighter (Fig. 2A). Thoracic sterna dark brown. Legs yellowish brown; meso- and metatrochanters and basal third of femora whitish; metafemur blackish brown on apical half; meso- and metatibiae dark brown to blackish brown, with basal and apical parts slightly lighter (Fig. 1A, C). Hemelytron with corium decorated with broad, oblique, whitish band from base to inner angle, apical half dark brown on inner half; clavus slightly lighter at apex; membrane dark brown, with three whitish patches (Fig. 2D). Abdomen dark brown, ventrally with one pair of longitudinal blackish bands laterally (Figs 1C; 2E); connexivum with faint, narrow, pale yellowish spot at base of each segment.</p><p>Vestiture. Body surface smooth, slightly shiny, densely covered with suberect to erect, long and slender, whitish yellow setae, with setae on outer surfaces of tibiae, basal half of anterior margin of corium as well as apical portion of abdomen extremely long (Fig. 1). Head with ventral surface and collum glabrous. Antennal scape and pedicel with suberect to erect, short, whitish pubescence, with pubescence as long as or slightly longer than diameter of segment; flagellomeres with decumbent to suberect, short, whitish pubescence. Visible labial segments II and III with sparse, erect, short setae. Thoracic pleura and sterna largely glabrous; mesopleuron with tuft of erect, long, whitish setae along midlength (Fig. 2B, C). Hemelytron with clavus and outer half of corium shiny, membrane and inner half of corium dull (Fig. 2D); corium with some erect, long, blackish setae along Cu. Abdomen with one cluster of conspicuous lateral setae at connexival intersegmental suture III-VII (Fig. 2D).</p><p>Structure. Head (Fig. 2 A-C) transverse elliptical, width across eyes 1.8 times as broad as length along midline; anteocular region twice as long as postocular, strongly declined anteriorly, near vertical; anteclypeus weakly elevated; gena with one small, posterolaterally produced, setigerous process. Eye (Fig. 2 A-C) large, reniform in lateral view, with posterior margin deeply concave; width across eyes 2.25 times as broad as interocular space. Antennal scape short and stout, 0.45 times as long as pedicel; pedicel slenderer, subequal to length of distiflagellomere; basiflagellomere slightly shorter than distiflagellomere. Labium (Fig. 2B, C) short and robust; visible segment I slightly shorter than visible segments II and III combined.</p><p>Pronotum (Fig. 2A, B) 0.7 times as long as width across humeral angles, clearly divided into anterior and posterior lobes by transverse sulcus; anterior lobe subrectangle, weakly inflated dorsally, with one shallow, median, longitudinal depression on posterior fourth, anterior margin finely concave at midlength, anterior angle slightly protruding laterally, lateral margins subparallel; posterior lobe subtrapezoid, 1.5 times as long as anterior lobe, flattened on disc, with deep, median, longitudinal sulcus gradually narrowed posteriorly, humeral angles rounded and finely inflated. Prosternum (Fig. 2C) with broad stridulitrum. Scutellum (Fig. 2A, B) 1.17 times as long as basal width, strongly wrinkled, with short ridges and small pits; lateral portions on basal half and midline on apical half distinctly elevated, forming Y-shaped ridge; apex rounded, clearly curved upwards (Fig. 2B). Fore leg short; femur finely thickened; tibia slightly shorter than femur, gradually widened towards apex, with fossula spongiosa about one-fourth as long as segment (Fig. 1A, C). Mesotibia slightly longer than femur. Metatibia 1.33 times as long as femur, weakly curved (Fig. 1A, C). Hemelytron nearly reaching apex of abdomen (Fig. 2D).</p><p>Abdomen elongate oval, 1.38 times as long as its maximum width, slightly flattened at midlength of ventral surface (Fig. 1C). Intersegmental sutures between sternites curved anteriorly at midlength (Figs 1C; 2E). Segment VIII broadly exposed, with posteromedial margin broadly concave as obtuse angle (Fig. 2E).</p><p>Male genitalia. Pygophore (Fig. 3A, B) suboval, with large anterior and posterior openings, lateral margins subparallel, ventral surface somewhat flattened; transverse bridge long and narrow; median process long, knife-like, curved upwards, finely curved in apical half, narrowed towards apex. Paramere (Fig. 3 C-E) large, lobe-like, widest at midpoint, gradually narrowed towards apex, covered with short to long setae on apical two-thirds; inner surface with one large, peculiar, branched process, with upper branch short, triangular, apically blunt (Fig. 3C, D), lower branch long, spine-like, apically acute (Fig. 3D, E). Phallus (Fig. 3 F-H) relatively small; articulatory apparatus well sclerotized, basal plate arms short and divergent, ponticulus basilaris short and wide; basal plate extension long, wide, curved; phallosoma oval, dorsal phallothecal sclerite finely sclerotized, struts fused to each other, enlarged at midlength and narrowed apically; endosoma largely membranous, with two series of weaklysclerotized small spinus.</p><p>Female</p><p>Unknown.</p><p>Measurements [in mm, ♂ (n= 1)]. Length of body (to apex of abdomen) 4.50; length of head 0.50; length of anteocular region 0.20; length of postocular region 0.10; width across eyes 0.90; interocular space 0.40; length of antennal segments I-IV= 0.40, 0.90, 0.70, 0.90; length of visible labial segments I-III=0.20, 0.15, 0.10; length of pronotum 1.00; length of anterior pronotal lobe 0.40; length of posterior pronotal lobe 0.60; width of anterior pronotal lobe 0.90; width of posterior pronotal lobe 1.40; median length of scutellum 0.70; basal width of scutellum 0.60; length of forefemur, tibia, tarsus=1.00, 0.80, 0.40; length of mesofemur, tibia, tarsus= 0.90, 1.00, 0.40; length of metafemur, tibia, tarsus =1.20, 1.60, 0.40; length of hemelytron 3.00; length of abdomen 2.20; maximum width of abdomen 1.60.</p><p>REMARKS</p><p>The holotype of Chryxus willemsei Chen, Hartong &amp; Cai, n. sp. was collected near Mapana Creek in the Commewijne District of Suriname. Comparing locations in Google Maps with original maps made by the collector J. P. Schulz (Centraal Bureau Luchtkaartering 1959; Schulz 1971) and other publications (Schulz 1960; Fernandes &amp; van Doesburg 2000), a point 5°18’17.7”N, 54°50’59.6”W (5.2650308, -55.0279351 or 5.3, -55.0) was selected. An accuracy radius of 20 km from this point is recommended.</p><p>COMPARATIVE NOTES Among the three known species of Chryxus, Chryxus willemsei Chen, Hartong &amp; Cai, n. sp. is most similar to C. garcetebarretti Gil-Santana, Leavengood, Bérenger, Martins &amp; Oliveira, 2022 (from Paraguay), but can be separated from the latter by the following morphological character states: antennal pedicel uniformly yellowish brown (vs pale brown with darkened apex in C. garcetebarretti); median longitudinal sulcus on posterior pronotal lobe wide at anterior portion, gradually narrowed posteriorly (vs uniformly narrow in C. garcetebarretti); apex of scutellum clearly curved upwards (vs horizontal in C. garcetebarretti); femora without median dark marking (vs femora largely darkened at midlength in C. garcetebarretti); membrane of hemelytron with three clear whitish patches (vs with two faint whitish patches in C. garcetebarretti). Since the male of C. garcetebarretti is currently undiscovered, the differences on the male genitalia between these two species remain unknown. Chryxus willemsei Chen, Hartong &amp; Cai, n. sp. also resembles C. bahianus Gil-Santana, Costa &amp; Marques, 2007 (from Brazil), but it has a much larger body size, and the color patterns on legs and hemelytron are very different between these two species. The lateral margins of the abdomen are simple in shape in C. willemsei Chen, Hartong &amp; Cai, n. sp., but in C. bahianus the posterolateral angles of the segments II-V are distinctly prominent. Moreover, the paramere of this new species has one large, peculiar-shaped process on its inner surface, with one short and one long branches, while C. bahianus only has one small, subquadrate, lamelliform process at the same position.</p></div>	https://treatment.plazi.org/id/B54B4F18FF9DFFA1FC8AEC84CFD6869E	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Chen, Zhuo;Hartong, Charlotte;Li, Hu;Cai, Wanzhi	Chen, Zhuo, Hartong, Charlotte, Li, Hu, Cai, Wanzhi (2026): Descriptions of two new species of the enigmatic Neotropical tribe Chryxini (Hemiptera, Heteroptera, Reduviidae) and a key to genera and species with single membrane cell. Zoosystema 48 (7): 197-209, DOI: 10.5252/zoosystema2026v48a7
B54B4F18FF91FFA1FF1AEC84CD6B8326.text	B54B4F18FF91FFA1FF1AEC84CD6B8326.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Wygodzinskyella Usinger 1952	<div><p>Genus Wygodzinskyella Usinger, 1952</p><p>Wygodzinskyella Usinger, 1952: 56 (original description). — Maldonado 1990: 21 (catalogue). — Schuh &amp; Slater 1995: 156 (listed). — Forero 2004: 142 (discussion). — Gil-Santana et al. 2007: 78, 81 (in key, listed). — Weirauch 2012: 119 (in key); Gil-Santana et al. 2015: 311 (in key). — Schuh &amp; Weirauch 2020: 356 (listed). — Gil-Santana et al. 2022: 173 (discussion). — Masonick et al. 2024: 26 (listed).</p><p>TYPE SPECIES. — Chryxus travassosi Lent &amp; Wygodzinsky, 1944 (by original designation).</p><p>DIAGNOSIS. — Recognized within the Chryxini by the following combination of character states: body medium-sized, 8-9 mm in length; head wider than long, strongly declined anteriorly; ocellus absent; corium of hemelytron with indistinct venation; membrane of hemelytron with single central cell and single vein emitting from apex of cell; abdominal connexivum concolorous.</p><p>DIVERSITY AND DISTRIBUTION. — Wygodzinskyella previously contained only its type species, W. travassosi (Lent &amp; Wygodzinsky, 1944) from Argentina and Brazil. A new species is described herein from Brazil.</p></div>	https://treatment.plazi.org/id/B54B4F18FF91FFA1FF1AEC84CD6B8326	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Chen, Zhuo;Hartong, Charlotte;Li, Hu;Cai, Wanzhi	Chen, Zhuo, Hartong, Charlotte, Li, Hu, Cai, Wanzhi (2026): Descriptions of two new species of the enigmatic Neotropical tribe Chryxini (Hemiptera, Heteroptera, Reduviidae) and a key to genera and species with single membrane cell. Zoosystema 48 (7): 197-209, DOI: 10.5252/zoosystema2026v48a7
B54B4F18FF91FFA3FF49E921CFD180E3.text	B54B4F18FF91FFA3FF49E921CFD180E3.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Wygodzinskyella gilsantanai Chen, Li & Cai 2026	<div><p>Wygodzinskyella gilsantanai Chen, Li &amp; Cai, n. sp.</p><p>(Figs 4-6)</p><p>urn:lsid:zoobank.org:act: ED4AAB44-7486-424D-9CFF-85C7773B7494</p><p>TYPE MATERIAL. — Holotype. Brazil • ♂; Río Grande do Sul, Guanabara, Represa Rio Grande; I.1972; M. Alvarenga and F. M. Oliveira leg.; AMNH.</p><p>DIAGNOSIS. — Body length about 8.8 mm, generally black (Fig. 4); pronotum with red anterior lobe and black posterior lobe (Fig. 5A, B); basal two-thirds to three-fourths of femora orange-coloured to reddish brown, tibiae and apical one-fourth to one-third of femora blackish brown (Fig. 4); hemelytron with basal half of corium orangish to reddish brown, apical half of corium blackish brown (Fig. 5D); median process of pygophore with subapical angular protrusion posteriorly (Fig. 6B); paramere with large, rhomboid, lamelliform process on inner surface (Fig. 6 C-E).</p><p>ETYMOLOGY. — The specific epithet is dedicated to the Brazilian entomologist Hélcio R. Gil-Santana (Instituto Oswaldo Cruz, Rio de Janeiro, Brazil), for his outstanding contribution to the taxonomy of the Neotropical Reduviidae .</p><p>DISTRIBUTION. — Brazil: Río Grande do Sul (Fig. 7).</p><p>DESCRIPTION Male Coloration. Generally black (Fig. 4). Head with ventral surface, collum and gena red; anteclypeus blackish brown. Labium with visible segment I red, visible segments II and III orangish brown (Fig. 5B, C). Pronotum with anterior lobe, anterior margin and median longitudinal sulcus of posterior lobe red; ventral and posterior margins of posterior lobe narrowly orangish brown (Fig. 5A, B). Propleuron and sternum reddish brown (Fig. 5B, C). Scutellum orange, with basal portion dark reddish brown (Fig. 5A). Meso- and metapleura and sterna reddish brown, with blackish suffusion on pleura (Fig. 5B, C). Legs with coxae, trochanters and femora (except apical parts) orange to reddish brown (Fig. 1); tibia, tarsi and apical parts of femora blackish brown (Fig. 1); claws yellowish brown. Hemelytron with basal half of corium and apical half of clavus orangish brown to reddish brown; apical half of corium blackish brown; basal half of clavus dark brown; membrane greyish black, with whitish marginal area (Fig. 5D). Abdomen with connexivum and basal portion of ventral surface orangish brown to reddish brown (Fig. 1).</p><p>Vestiture. Body surface smooth, slightly shiny, densely covered with suberect to erect, long and slender, whitish yellow setae. Head with ventral surface and collum glabrous. Visible labial segments II and III with sparse, erect, short setae. Meso- and metapleura and sterna (except midlengths) glabrous; mesopleuron with tuft of erect, long, whitish setae along midlength (Fig. 5B, C). Hemelytron with membrane dull, finely wrinkled (Fig. 5D).</p><p>Structure. Head (Fig. 5 A-C) transverse elliptical, width across eyes 1.6 times as broad as length along midline; anteocular region twice as long as postocular, strongly declined anteriorly, vertical; anteclypeus weakly elevated; gena short conical, slightly produced posteriorly. Eye (Fig. 5 A-C) large, protruding laterally, reniform in lateral view, with posterior margin deeply concave; width across eyes 2.9 times as broad as interocular space. Antenna missing. Labium (Fig. 5B, C) short and robust; visible segment I slightly shorter than visible segments II and III combined.</p><p>Pronotum (Fig. 5A, B) 0.68 times as long as width across humeral angles, clearly divided into anterior and posterior lobes by transverse sulcus; anterior lobe short, slightly inflated dorsally, with shallow oblique furrows on both sides, and shallow, median, longitudinal sulcus on posterior half, anterior margin concave at midlength, anterior angle rounded, not prominent; posterior lobe subtrapezoid, 1.7 times as long as anterior lobe, disc finely inflated, with deep, median, longitudinal sulcus gradually narrowed posteriorly, humeral angles rounded and finely inflated. Prosternum with anterior margin produced anteriorly at midpoint, forming small process in lateral view (Fig. 5B). Scutellum (Fig. 5A, B) 1.25 times as long as basal width, slightly wrinkled, with short ridges and small pits; lateral portions on basal half and midline on apical half distinctly elevated, forming Y-shaped ridge; apex subacute, clearly curved upwards (Fig. 5B). Meso- and metasterna with narrow longitudinal ridge along midline (Fig. 5C). Fore leg short; femur finely thickened; tibia slightly longer than femur, gradually widened towards apex, with fossula spongiosa about one-fourth as long as segment (Fig. 1). Mesotibia slightly longer than femur. Metatibia 1.28 times as long as femur, straight. Hemelytron nearly reaching apex of abdomen (Fig. 5D).</p><p>Abdomen elliptical, 1.77 times as long as its maximum width (Fig. 4). Intersegmental sutures between sternites curved anteriorly at midlength (Fig. 5C); sternites II and III with narrow longitudinal ridge along midline (Fig. 5C). Segment VIII broadly exposed, with posteromedial margin broadly concave as arc (Fig. 5E).</p><p>Male genitalia. Pygophore (Fig. 6A, B) suboctagonal, with large anterior and posterior openings, lateral margins distinctly constricted at midpoint, ventral surface rounded; transverse bridge long and narrow; median process long, knife-like, curved upwards, slightly widened at midlength, narrowed towards apex, with subapical angular protrusion posteriorly (Fig. 6B). Paramere (Fig. 6 C-E) large, paddle-like, distinctly widened on apical three-fourths, covered with short to long setae on apical two-thirds; apical margin curved inwards, forming hook-like, apically acute process; inner surface with one large, rhomboid lamelliform process at midpoint. Phallus as shown in Fig. 6 F-H; articulatory apparatus weakly sclerotized, basal plate arms slender and divergent, ponticulus basilaris short and narrow; basal plate extension narrow, nearly as long as basal plate arms; phallosoma elongate elliptical, dorsal phallothecal sclerite finely sclerotized, struts fused to each other, long and slender; endosoma largely membranous.</p><p>Female</p><p>Unknown.</p><p>Measurements [in mm, ♂ (n= 1)]. Length of body (to apex of abdomen) 8.75; length of head 0.80; length of anteocular region 0.20; length of postocular region 0.10; width across eyes 1.30; interocular space 0.45; length of antennal segments I-IV =? (missing),? (missing),? (missing),? (missing); length of visible labial segments I-III = 0.50, 0.30, 0.15; length of pronotum 1.90; length of anterior pronotal lobe 0.70; length of posterior pronotal lobe 1.20; width of anterior pronotal lobe 1.60; width of posterior pronotal lobe 2.80; median length of scutellum 1.50; basal width of scutellum 1.20; length of forefemur, tibia, tarsus=2.00, 2.15, 0.70; length of mesofemur, tibia, tarsus = 2.10, 2.45, 0.70; length of metafemur, tibia, tarsus =2.80, 3.60, 0.80; length of hemelytron 6.60; length of abdomen 5.50; maximum width of abdomen 3.10.</p><p>REMARKS</p><p>The holotype of Wygodzinskyella gilsantanai Chen, Li &amp; Cai, n. sp. was collected from the Río Grande do Sul state in Brazil. Using Google Maps a point 32°07’18.5”S, 52°12’58.6”W (-32.121805, -52.216284 or -32.1, -52.2) was selected based on another publication featuring specimens from the same collector (Dellapé et al. 2016). An accuracy radius of 20 km from this point is recommended. No further information about the location was available to the authors.</p><p>COMPARATIVE NOTES</p><p>Wygodzinskyella gilsantanai Chen, Li &amp; Cai, n. sp. can be distinguished from its only known congener W. travassosi (from Argentina and Brazil) by the different color patterns first of all: pronotum with anterior lobe red, posterior lobe black except red median longitudinal sulcus (vs orange-coloured, with disc of posterior lobe largely dark brown in W. travassosi); femora orange to reddish brown with apices blackish brown, tibiae uniformly blackish brown (vs legs blackish brown, with apices of femora and bases of tibiae orangish brown in W. travassosi); hemelytron with corium orangish to reddish brown in basal half, blackish brown in apical half (vs corium dark brown, with basal part orangish brown in W. travassosi). The eyes of W. travassosi are covered with many long erect pubescence arising between ommatidia, but the eyes of W. gilsantanai Chen, Li &amp; Cai, n. sp. are almost glabrous. These two species can be further separated by the character states of the male genitalia: the posterior margin of the median process of the pygophore has a subapical angular protrusion in W. gilsantanai Chen, Li &amp; Cai, n. sp., but in W. travassosi it lacks such modification; the paramere of W. gilsantanai Chen, Li &amp; Cai, n. sp. has a large, rhomboid, lamelliform process at the midpoint of its inner surface, while in W. travassosi the process is smaller, triangular and acute at apex.</p></div>	https://treatment.plazi.org/id/B54B4F18FF91FFA3FF49E921CFD180E3	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Chen, Zhuo;Hartong, Charlotte;Li, Hu;Cai, Wanzhi	Chen, Zhuo, Hartong, Charlotte, Li, Hu, Cai, Wanzhi (2026): Descriptions of two new species of the enigmatic Neotropical tribe Chryxini (Hemiptera, Heteroptera, Reduviidae) and a key to genera and species with single membrane cell. Zoosystema 48 (7): 197-209, DOI: 10.5252/zoosystema2026v48a7
B54B4F18FF95FFA5FEF9EE80CB0C80E7.text	B54B4F18FF95FFA5FEF9EE80CB0C80E7.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Chryxus Champion 1898	<div><p>KEY TO GENERA AND SPECIES OF CHRYXUS GROUP MODIFIED FROM GIL-SANTANA ET AL. (2022)</p><p>1. Body length 8.0-9.0 mm; veins on corium of hemelytron indistinct; abdominal connexivum unicolored [ Wygodzinskyella Usinger, 1952] .................................................................................................................. 2</p><p>— Body length 3.1-5.3 mm; veins on corium of hemelytron distinct, at least basally; abdominal connexivum bicolored ........................................................................................................................................................ 3</p><p>2. Pronotum with red anterior lobe and black posterior lobe; femora orangish to reddish brown, with apices blackish brown; tibiae uniformly blackish brown; paramere with large, rhomboid, lamelliform process at middle of inner surface ......................................................................................... W. gilsantanai Chen, Li &amp; Cai, n. sp.</p><p>— Pronotum orangish brown, with disc of posterior lobe dark brown; legs blackish brown, with apices of femora and bases of tibiae orangish brown; paramere with small, triangular, apically acute process at middle of inner surface ........................................................................................... W. travassosi (Lent &amp; Wygodzinsky, 1944)</p><p>3. Head with process on frons [ Petasolentia Weirauch, 2012] ................................. P. goellnerae Weirauch, 2012</p><p>— Head without process on frons .................................................................................................................... 4</p><p>4 Ocellus present; gena produced into acute process; hemelytron with small costal cell [ Lentia Wygodzinsky, 1946] ...................................................................................................... L. corcovadensis Wygodzinsky, 1946</p><p>— Ocellus absent; gena produced into small conical process; hemelytron without costal cell [ Chryxus Champion, 1898] .......................................................................................................................................................... 5</p><p>5 Anterior lobe of pronotum with shallow oblique furrows, anterior angle largely prominent; abdominal connevixum pale with distal dark markings ......................................................... C. tomentosus Champion, 1898</p><p>— Anterior lobe of pronotum smooth, without lateral furrows, anterior angle slightly prominent; abdominal connexivum reddish brown to dark brown with dark or pale markings, respectively .......................................... 6</p><p>6 Transverse and median longitudinal sulci of pronotum uniformly narrow; apex of scutellum horizontal; femora largely darkened at midlength.... C. garcetebarretti Gil-Santana, Leavengood, Bérenger, Martins &amp; Oliveira, 2022</p><p>— Transverse and basal half of median longitudinal sulci of pronotum widened; apex of scutellum curved upwards; femora different in colouration .................................................................................................................... 7</p><p>7 Hemelytron with oblique whitish band from base to inner angle of corium, and three whitish patches on membrane; lateral margins of abdomen simple in shape; paramere with large, bifurcated process at middle of inner surface ........................................................................................... C. willemsei Chen, Hartong &amp; Cai, n. sp.</p><p>— Hemelytron with transverse whitish band near middle of corium, and two whitish patches on membrane; posterolateral angles of abdominal segments II-V distinctly prominent; paramere with small, subquadrate, lamelliform process at middle of inner surface .......................... C. bahianus Gil-Santana, Costa &amp; Marques, 2007</p></div>	https://treatment.plazi.org/id/B54B4F18FF95FFA5FEF9EE80CB0C80E7	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Chen, Zhuo;Hartong, Charlotte;Li, Hu;Cai, Wanzhi	Chen, Zhuo, Hartong, Charlotte, Li, Hu, Cai, Wanzhi (2026): Descriptions of two new species of the enigmatic Neotropical tribe Chryxini (Hemiptera, Heteroptera, Reduviidae) and a key to genera and species with single membrane cell. Zoosystema 48 (7): 197-209, DOI: 10.5252/zoosystema2026v48a7
