Perilampsis Bezzi, 1920
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publication ID |
https://doi.org/ 10.1080/00222930903207868 |
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persistent identifier |
https://treatment.plazi.org/id/C1499727-E20A-AC7D-E251-FC55FD7561BB |
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treatment provided by |
Felipe |
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scientific name |
Perilampsis Bezzi, 1920 |
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Perilampsis Bezzi, 1920 View in CoL View at ENA
Type species: Carpophthoromyia pulchella Austen, 1910 by original designation. Bezzi, 1924b, key.
Munro, 1939a, key, biology larvae.
Munro, 1939b, amended key.
Munro, 1969, amended key.
Hardy, 1967, mistletoe infesting species.
Cogan and Munro, 1980, Afrotropical catalogue.
Hancock, 1987, key to Zimbabwean species.
Norrbom et al., 1999, world catalogue.
Diagnosis
Perilampsis can be separated from closely related genera by the combination of the following diagnostic characters: anepisternum with oblique white line along posterodorsal portion; two anepisternal setae; scutum with dark brown to black ground colour, usually with transverse band(s) of silvery setulae; scutellum flattened, ground colour white, with or without apical spots; wing with dark brown banding pattern consisting mainly of an anterior apical band, posterior apical band, a discal band, and a subapical band ( Figure 1A,C View Figure 1 ; sensu banding in Ceratitis , cf. White et al. (2000, Figure 33.3c)). These bands are present in various
Aab
D
Sab Pab Db A
E
B
Sbb F
C G
combinations that more or less define species groups. In some species anterior half of wing completely brown ( Figure 2H–J View Figure 2 ).
Description
Head. First flagellomere twice to three times as long as pedicel; yellow to brown; rounded apically. Arista bare to short pubescent along entire length. Frons in ventral half white or yellow, dorsal part darker coloured. Face white, sometimes partly brownish. Chaetotaxy: major setae black and acuminate; two orbitals, anterior orbital thicker and longer than posterior orbital; two frontals, anterior frontal slightly shorter than posterior frontal; one pair of ocellars, as long as or longer than anterior orbital; medial vertical at least twice as long as posterior orbital, lateral vertical equal to anterior orbital seta; postocellar black, shorter than lateral vertical; postoculars slender and short, black. Genal setulae usually well developed, black. Genal seta black. Other setae and setulae short and black or whitish yellow.
Thorax. Postpronotal lobe white. Scutum usually shining dark brown to black, sometimes more yellowish; with short dark setulae; often with one to two transverse bands of denser silver-grey setulae and microtrichosity. Scutellum flattened; usually completely white, sometimes with brown to black apical marking(s). Subscutellum entirely brown. Anepisternum posterodorsally white, white area usually touching postpronotal lobe and dorsal margin, ventrally running obliquely towards and reaching posteroventral corner or almost so, anteroventrally brown to yellow, with pale and dark setulae. Katatergite and anatergite variable, usually partly or wholly white to yellow, sometimes brownish. Chaetotaxy: setae on scutum black; two scapulars, one postpronotal, two notopleurals, one presutural supra-alar, one dorsocentral, one postsutural supra-alar, one postalar, one intra-alar, one prescutellar acrostichal, one basal and one apical scutellar, one anepisternal, one anepimeral, and one katepisternal.
Legs. Yellow to partly brown-black. Setae black, setulae yellow to black. Midtibial spur black.
Wing ( Figures 1–2 View Figure 1 View Figure 2 ). Vein R 4+5 dorsally sparsely setulose on basal two-thirds. Vein M reaching costa posterior to wing apex. Cell bcu with posterodistal lobe sinuous. Wing banding similar to pattern observed in Ceratitis species with discal, anterior apical, posterior apical and subapical band present in various combinations, defining species groups.
Abdomen. Ground colour usually brown to black, rarely reddish; with black setulae, along posterior margin of tergites usually with longer setae. Tergites 2 and 4 often with paler transverse band; sometimes tergites with yellow patches. Oviscape black to brown, variable in length; with short, dispersed yellowish or blackish setulae. Aculeus ( Figure 3 View Figure 3 ) either round and tubular or flattened; aculeus tip ( Figure 4 View Figure 4 ) narrow and pointed in the tubular forms, variable in shape in the flattened forms.
E
Key to the species of the genus Perilampsis View in CoL
1. Wing ( Figure 2H–J View Figure 2 ), subapical band absent; anterior part of wing with wide brown oblique band running from cell bcu appendix, along basal half of cell dm, to vein R 4+5; posterior apical band always present and connected to anterior apical band; cell c brownish coloured for at least 80% of entire surface....................................................... 2 Wing ( Figures 1 View Figure 1 , 2A–G View Figure 2 ), subapical band usually present (largely reduced and almost absent in P. deemingi View in CoL , but then see other characters); banding in anterior part of wing variable, in most cases with distinct discal band and anterior apical band present; posterior apical band present or absent; cell c largely hyaline with isolated brownish spots occupying at most 50% of entire surface....................................................... 4
2. Legs, femora yellow; abdomen mainly reddish............ rubella View in CoL sp. nov. Legs, femora brown; abdomen mainly brown....................... 3
3. Katatergite and anatergite white.............................. furcata Katatergite View in CoL and anatergite brown.............................. woodi View in CoL
4. Wing ( Figure 1C–G View Figure 1 ), posterior apical band absent; cell c without brown spots..................................................... 5 Wing ( Figures 1A,B View Figure 1 , 2A–G View Figure 2 ), posterior apical band present; cell c with brown spots........................................................ 9
5. Wing ( Figure 1E View Figure 1 ), anterior apical band with small appendix (subapical tooth) extending into cell r4+5 but never reaching vein M, and interrupted near vein R 2+3 apex, distally to subapical tooth............... formosula View in CoL Wing ( Figure 1C,D, F–G View Figure 1 ), subapical tooth present or absent; anterior apical band continuous till wing apex, at most with incomplete interruption near vein R 2+3 apex (if the latter, no apical tooth)........................ 6
6. Wing ( Figure 1D,F View Figure 1 ), anterior apical band without subapical tooth...... 7 Wing ( Figure 1C,G View Figure 1 ), anterior apical band with subapical tooth......... 8
7. Wing ( Figure 1D View Figure 1 ), subapical band weak, sometimes hardly discernible; anterior apical band covering most of area of cell r 1 between apices of veins R 1 and R 2+3 ........................................ deemingi View in CoL sp. nov. Wing ( Figure 1F View Figure 1 ), subapical band distinct; anterior apical band covering only 50% of area of cell r 1 between apices of veins R 1 and R 2+3 ......................................................... incohata View in CoL sp. nov.
8. Wing ( Figure 1C View Figure 1 ), discal band and anterior apical band united near pterostigma................................................. atra View in CoL Wing ( Figure 1G View Figure 1 ), discal band and anterior apical band separated............................................................ tetradactyla View in CoL
9. Abdomen largely shining orange-red to red. Oviscape longer than abdominal tergites 1–5......................................... diademata View in CoL (but see comments under P. curta View in CoL . Male specimens of the latter with reddish abdomen will key out here and are currently not distinguishable from P. diademata View in CoL )
Abdomen predominantly shining dark brown, at most with yellow or greyish patches. Oviscape shorter or longer than abdominal tergites 1–5........10
10. Legs, femora same colour as apical half of tibiae; male wing ( Figure 1A,B View Figure 1 ), area between anterior apical band and posterior apical band partially darker coloured and merged...........................................11 Legs, femora darker coloured than apical half of tibiae; male wing ( Figure 2A–G View Figure 2 ), anterior apical band and posterior apical clearly separated but fused basally.......................................................12
11. Abdomen, tergite 4 with posterior half yellow, in median part yellow band reaching anterior margin leaving only anterolateral area brown.... umbrina View in CoL Abdomen, tergite 4 shining brown, in posterior part at most with greyish band................................................ amazuluana View in CoL
12. Scutellum, apical margin with three, largely merged, brown spots; wing, subapical band usually touching discal band; rarely isolated......... unita Scutellum View in CoL completely white; wing, subapical band isolated............13
13. Wing ( Figure 2D,F View Figure 2 ), discal band separated from subbasal band........14 Wing ( Figure 2A,B,E View Figure 2 ), discal and subbbasal band largely merged.......15
14. Arista pubescent; female aculeus rounded, apex ( Figure 4J View Figure 4 ) narrow, simply pointed................................................ pulchella Arista View in CoL completely bare, female aculeus flattened, apex ( Figure 4I View Figure 4 ) with subapical shoulders.......................................... dryades View in CoL
15. Wing ( Figure 2B View Figure 2 ), length of vein M between crossveins BM-Cu and R-M equals or longer than length of vein M between crossveins R-M and DM-Cu (R-M ratio usually greater than 1, if 1 see other characters); scutum, one transverse band of silvery pilosity and microtrichosity, anteriorly of transverse suture; female aculeus apex ( Figure 4H View Figure 4 ) serrated............ decellei View in CoL Wing ( Figure 2A,E View Figure 2 ), length of vein M between crossveins BM-Cu and R-M shorter than length of vein M between crossveins R-M and DM-Cu (R-M ratio usually smaller than 1, if 1 see other characters); scutum, two transverse bands of silvery pilosity and microtrichosity, one anteriorly of transverse suture, second near dorsocentral setae; female aculeus apex never serrated.................................................... 16
16. Anatergite and katatergite brown with median white spot; female oviscape at least 1.5 times longer than abdominal tergites 1–5 combined...................................................... miratrix Anatergite View in CoL and katatergite completely brown, without white spots; female oviscape at most as long as abdominal tergites 1–5 combined........ curta View in CoL
Taxonomic description
Perilampsis species are grouped here in four species groups, based on similarities in wing banding, aculeus shape and other morphological characters. Diagnostic characters for each group are given at the beginning.
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.