Agathocles joceliae, Salini & Kment, 2021

Salini, S. & Kment, Petr, 2021, The genera Agathocles and Surenus (Hemiptera: Heteroptera: Pentatomidae) tribal reassessment, redescription, new synonyms, and description of two new species, Zootaxa 4958 (1), pp. 510-559 : 535-542

Agathocles joceliae sp. nov.

( Figs 12–13 , 15, 18, 20 , 24 , 32 , 36 , 88–105 , 139 )

Type locality. Malaysia, W Kelantan, road between Kampung Raja and Gua Musang, 1400‒1700 m a.s.l., Ladang Pandrak, 4.63°N 101.45°E to 4.88°N 101.95°E.

Type material. Holotype: ♂ ( NHMW), ‘ MALAYSIA, W KELANTAN / Road between Kampung Raja / and Gua Musang , 1400-1700m, / (Ladang Pandrak), 1.-28.iv.2006 / 4°63´N, 101°45´E, 4°88´N-/ 101°95´E, Čechovský Petr lgt. [p]’ // ‘ MALAYSIA, W KELANTAN / Road between Kampong Raja / and Gua Musang , 1400-1700m, / (LadangPandrak), 1.-28.iv.2006 / 4°63´N, 101°45´E, 4°88´N- / 101°95´E, Cechovsky Petr lgt. [p, partly illegible]’ // COLLECTION / NATURHISTORISCHE / MUSEUM WIEN [p] // ♂ [p] // HOLOTYPUS / AGATHOCLES / JOCELIAE / sp. nov. / des. Salini & Kment 2020 [p, red label]. The holotype is card-mounted, complete, except detached genital capsule and right metatarsomeres II + III glued to the same piece of card. The original locality label is quite illegible; the data were reconstructed with help of Novák (2018), and replacement locality label is provided.

Paratypes (4 ♂ 6 ♀). MALAYSIA: Kelantan : 30 km NW of Gua Musang, Ulu Lalat Mt. [4°54′10″N 101°49′39″E], 800–1000 m a.s.l., Kampong Sungai Om, 27.v.–19.vi.2011, 1 ♂ 1 ♀, Petr Čechovský lgt. ( NHMW) ; same locality, 21.vi.–14.vii.2010, 2 ♂ 4 ♀, Petr Čechovský lgt. (1 ♂ 3 ♀ NHMW, 1 ♂ 1 ♀ NHMW → NMPC) ; 30 km S of Jeli [5°25′25″N 101°50′48″E], Gunung Jual, Kampong Timor , 10.iv.–6.v. 2018, 800 m a.s.l., 1 ♀, Petr Čechovský lgt. ( NMPC) . Perak: 40 km SE of Ipoh, Banjaran Titiwangsa, Ringlet [4°24′18.5″N 101°23′12.3″E], 900 m a.s.l., 29.iii.–15.iv.2004, 1 ♂, Petr Čechovský lgt. ( NHMW) .

Description. Colouration ( Figs 88–89 ). Body above and below, including posterior portion of pygophore, black, except clavus and corium dark brown; connexival segments ventrally with narrow brown stripe sublaterally; acetabula and peritremal surface brownish; antennomeres I–III pale brown, distiflagellum (IV) pale ochraceous; legs brown, femora apically darker; labium and base of pygophore pale ochraceous. Apex of scutellum with large yellowish spot, smaller yellowish callosities on apices of humeral angles, at the end of median furrow on corium, and anterolaterally on metepimeron; dorsal surface of body, especially on corium, with very small yellowish ochraceous callosities. Membrane dark brown, translucent.

Integument and vestiture. Body shining, clavus, corium and evaporatorium matt. Body above covered with dense, coarse, black punctures, except impunctate apex of scutellum; endocorium with punctures sparser but equally large as on exocorium; disc of pronotum (posteromedially) and scutellum (anteriorly) with prominent transverse wrinkles ( Fig. 88 ); head underside and thoracic sterna with dense, coarse punctures; surface of abdominal sternites smooth with fine punctures.

Structure. Head ( Fig. 12 ). Head slightly shorter than wide (length: width ratio 0.79–0.88). Mandibular plates with lateral margins distinctly sinuate in front of eyes above the large antenniferous tubercle, parallel-sided about their midlength, and narrowly rounded anteriorly; mandibular plates not meeting anteriorly, apex of clypeus completely free, apical incisure in front of clypeus wide, trapeziform.Antennomeres from shortest to longest: I <IIa <IV <IIb = III, but ratios of antennal segments highly variable. Scape (I) surpassing apex of head of about its halflength, basipedicellite (IIa) distinctly (1: 1.41‒1.93×) longer than scape and usually shorter than distipedicellite (IIb) (length of IIa: IIb ratio: 1: 1.00‒1.70). Labiomeres from shortest to longest (n = 1): IV (1.23 mm) <I (1.57 mm) <III (1.86 mm) <II (2.06 mm). Labium reaching posterior margin of mesocoxae.

Pronotum ( Fig. 88 ). Lateral tooth on anterolateral angles prominent, directed laterad ( Fig. 12 ). Lateral pronotal margin anteriorly slightly serrate. Humeri rectangular, slightly surpassing laterad over base of corium. Posterior margin slightly concave.

Scutellum ( Fig. 88 ). Disc of scutellum convex in prefrenal portion, its postfrenal portion flat; apex narrowly rounded.

Hemelytra. Costal margin of corium only slightly insinuated basally ( Fig. 88 ).

Thorax. Ostiole large, oval, opening posteriad; median furrow short and wide, not apparent in apical half of peritreme length ( Fig. 18 ). Metasternum medium wide ( Fig. 25 ).

Male genitalia. Genital capsule ( Figs 90–94 ) nearly quadrangular in dorsal/ventral view, longer than wide. Ventral rim deeply incised medially, sharp ( Fig. 93 ); posterolateral projections prominent ( Figs 93, 94 ); ventral rim infolding not visible ( Fig. 91 ). Superior processes of dorsal rim elongate, crescent-shaped ( Figs 90–91, 96 ). Proctiger trapezoid, short, without any constriction ( Fig. 95 ). Parameral socket open ( Fig. 91 : ps). Paramere ( Figs 97–101 ): basal process (bp) with a lamellate, horizontally oriented semicircular lobe, apically with group of few long setae ( Figs 97, 101 ); apical process (ap) hook-shaped, apically more pointed ( Figs 97–99 ); mesal angle of stem without any additional projection ( Figs 97, 99, 101 ). Phallus ( Figs 102–105 ): A pair of dorsal conjunctival processes (dlc), transversely placed and ending in triangular sclerotised processes ( Fig. 105 ); median penial plates (mpp) or processes of aedeagus fused basally, outer margins broadly and thickly sclerotized, encircling short, curved aedeagus ( Fig. 105 : ad).

Female genitalia ( Figs 32 , 36 ). Laterotergite VIII (lt8) subtriangular. Laterotergites IX (lt9) widely rounded apically, not touching each other medially, segment X visible ( Fig. 32 ). Valvifers VIII (vf8) quadrant with median margins juxtaposed and dorsal margins slightly concave ( Fig. 32 ). Valvifers IX (vf9) fused medially, with indistinct median fusion line, flat. Ring sclerites roughly circular, not apparently sclerotized in the specimen examined ( Fig. 36 ). Spermatheca: dilation in the examined specimen swollen, whitish and not transparent, constricted subbasaly with sclerotized ring ( Fig. 33 ), distal invagination (‘sclerotized rod’; Fig. 33 ) visible only basally, strongly curved; distal flange (df) tightly attached to apical receptacle (ar) ( Fig. 36 ); apical receptacle subhemispherical ( Fig. 36 ) with one long projection directed proximad and nearly reaching proximal flange (pf), and one short processes directed proximad and reaching distal flange.

Measurements (mm). See Table 2. Holotype (♂): Body length 19.27; head: length 3.43, width (including eyes) 3.92, interocular width 2.45; lengths of antennomeres: I—1.47, IIa—2.35, IIb—2.94, III—2.75, IV—2.45; pronotum: length 4.51, width (across humeri) 10.39; scutellum: length 6.96, width (across basal angles) 5.88; abdomen width (across segment III) 10.69.

Variation. Distribution of small yellowish callosities on dorsal surface of body varies among specimens. Ratios of length of antennomeres IIa to IV highly variable, arranged from shortest to longest: I <IIa < IV < III <IIb (3 specimens) , I <IIa = IIb < III ( IV missing; 1 specimen) , I <IIa <IIb < III ( IV missing; 1 specimen) , I <IIa < IV <IIb < III (2 specimens) , I <IIa < IV <IIb = III (2 specimen) , I < IV <IIa <IIb = III (1 specimen) .

Differential diagnosis. See key and Table 3. This species is easy to recognize due to its apically free clypeus, scape surpassing apex of head, and blackish-brown colouration with conspicuous whitish unpunctured spot at the apex of scutellum.

Etymology. We are pleased to dedicate this elegant new species to our dear colleague, Professor Jocelia Grazia, with our thanks for her outstanding contributions to pentatomoid systematics, morphology and phylogeny. Distribution ( Fig. 139 ). Peninsular Malaysia (Kelantan, Perak).

Figures

FIGURE 139. Distribution of the Agathocles species. T—type locality;?—doubtful record. Orig. P. Kment.

FIGURES 6–13. Head. 6–8—Agathocles limbatus Stål, 1876: 6—dorsal view, Vietnam: Phia Oac NP (magnification 20×); 7— dorsal view, Thailand: Phu Kradung NP (20×); 8—lateral view, Laos: Phou Pane Mt. (30×). 9—A. normalis (Distant, 1901a), male, dorsal view, Laos: Phou Pane Mt. (23× mm). 10–11—A. flavipes sp. nov., female, dorsal (10, 30×) and ventral (11, 40×) view, India: Maharashtra: 70 km N of Pune. 12–13—A. joceliae sp. nov.: 12—holotype, male, dorsal view, Malaysia: Kelantan (25×); 13—female, ventral view, Malaysia: Kelantan: Kampong Sungai Om (27×). Lettering: at—antenniferous tubercle, bu— buccula, cl—clypeus, la—labium, lr—labrum, mp—mandibular plate, oc—ocellus. Scale bars: 1 mm. Orig. P. Kment.

FIGURES 14–22. External scent efferent system of metathoracic scent gland. 14—Agathocles normalis (Distant, 1901), male, Laos: Phou Pane Mt. (23×). 15—A. joceliae sp. nov., female, Malaysia: Kelantan: Kampong Timor. 16–19—ostiole and peritreme: 16—A. limbatus Stål, 1876 (90×); 17—A. flavipes sp. nov. (100×); 18—A. joceliae sp. nov. (75×); 19—A. normalis (Distant, 1901) (85×). 20—A. joceliae sp. nov., evaporatorium laterally on mesopleuron (75×). 21—A. normalis, metathoracic spiracle (42×). 22—A. limbatus, detail of metathoracic spiracle with reticulate filter processes (320×). Lettering: ev—evaporatorium, mf—median furrow, o—ostiole, pe—peritreme, sms—smooth spot on mesopleuron, sp—spiracle. Scale bars: 1 mm (14, 15, 21), 0.5 mm (16–20), 0.1 mm (22). Orig. P. Kment.

FIGURES 23–28. Morphology of thorax and abdomen. 23–25—metasternum: 23—Agathocles flavipes sp. nov. (50×); 24—A. joceliae sp. nov. (55×); 25—A. limbatus Stål, 1876 (37×). 26–28—A. limbatus: 26—mesosternum (50×); 27—spiracle and trichobothria on abdominal segment VI (170×); 28—apex of abdomen and genital capsule, lateral view (35×). Lettering: cx2— mesocoxa, cx3—metacoxa, gc—genital capsule, la2‒4—labiomere II‒IV; msc—mesosternal carina; mts—metasternum; sp— abdominal spiracle; tr—trichobothrium. Scale bars: 1 mm (23–26, 28), 0.3 mm (27). Orig. P. Kment.

FIGURES 29–32. External female genitalia. 29–30—Agathocles limbatus Stål, 1876 (29—27×); 31—A. flavipes sp. nov.; 32—A. joceliae sp. nov. Lettering: lt8–9—laterotergites VIII–IX, t8—tergite VIII, vf8–9—valvifers VIII–IX, x—segment X. Scale bars: 1 mm. Orig. P. Kment.

FIGURES 33–36. External and internal female genitalia. 33—Agathocles limbatus Stål, 1876; 34–35—A. flavipes sp. nov.; 36—A. joceliae sp. nov. Lettering: ar—apical receptacle, dd—distal duct of spermatheca, df—dorsal flange, dil—spermathecal dilation, div—distal invagination of spermathecal duct, ip—intermediate part, pd—proximal duct of spermatheca, pf—proximal flange, rs—ring sclerite, so—spermathecal opening. Scale bars: 1 mm. Orig. P. Kment (33, 36), Salini (34–35).

FIGURES 88–89. Agathocles joceliae sp. nov., habitus of holotype, male, body length 19.27 mm (88—dorsal view, 89— ventral view). Orig. P. Kment.

FIGURES 90–96. Male genital capsule of Agathocles joceliae sp. nov.: 90—caudal view (42×); 91—caudal view, dissected (42×); 92—dorsal view (30×); 93—ventral view (27×); 94—lateral view (37×); 95—proctiger (85×); 96—superior process of dorsal rim (130×). Lettering: plp—posterolateral projection of genital capsule, ps—paramere socket, sp—superior process of dorsal rim. Scale bars: 1 mm (92–94), 0.5 mm (90–91, 95), 0.2 mm (96). Orig. P. Kment.

FIGURES 97–101. Paramere of Agathocles joceliae sp. nov., five different views (100×). Lettering: ap—apical process of paramere, bp—basal process of paramere. Scale bars: 0.5 mm. Orig. P. Kment.

FIGURES 102–107. Penis of Agathocles species. 102–105—A. joceliae sp. nov. (102–104—not inflated, 105—inflated): 102—dorsal view, 103—lateral view, 104—ventral view, 105—apical view. 106–107—A. normalis (Distant, 1901), inflated: 106—dorsal view, 107—ventral view. Lettering: ad—aedeagus, dlc—dorsolateral conjunctival processes, mpp—median penial plate, pt—phallotheca. Scale bars: 1 mm. Orig. P. Kment.