Schizoptera (Odontorhagus),

Leon, Stephanie & Weirauch, Christiane, 2016, Scratching the surface? Taxonomic revision of the subgenus Schizoptera (Odontorhagus) reveals vast undocumented biodiversity in the largest litter bug genus Schizoptera Fieber (Hemiptera: Dipsocoromorpha), Zootaxa 4184 (2), pp. 255-284: 259-260

publication ID

http://doi.org/10.11646/zootaxa.4184.2.2

publication LSID

lsid:zoobank.org:pub:5B8F792E-EEDB-494D-9EB3-48CA6174CC6E

persistent identifier

http://treatment.plazi.org/id/C66D8798-783C-590D-F6A0-FBA3FA4EF87E

treatment provided by

Plazi

scientific name

Schizoptera (Odontorhagus)
status

 

Key to the species of Schizoptera (Odontorhagus) 

This key includes all new species as well as those species for which re-descriptions of the genitalia were available ( S. decius  , S. commodus  , and S. stricklandi  ), and S. trinitatis  , for which the microscopic slide mount image sufficed for species-level diagnostic features of the subgenital plate.

1 Subgenital plate distinctly asymmetrical with longitudinal margin forming an angular incision with posterior margin of left lateral process ( Figs 5B, 5KView FIGURE 5 A – L), or with a large, irregular incision ( Fig. 5JView FIGURE 5 A – L)............................................ 2

- Subgenital plate weakly asymmetrical with rounded, or almost rounded tip........................................ 9

2 Subgenital plate with two processes, a club-shaped anterior and a jagged tab-like posterior process, left inner margin of pygophore with long, curving process ( Fig. 5JView FIGURE 5 A – L).................................................. S. enigmatica  , n. sp.

- Subgenital plate with a single lateral process; left inner margin of pygophore short, without process.................... 3

3 stVII with a small process on posterior margin............................................................... 4

- stVII without small process on posterior margin............................................................. 5

4 Subgenital plate short, with left side reduced, forming an angular incision>90º, right conjunctival appendage large and serrated, body small ( Fig. 5EView FIGURE 5 A – L)................................................................... S. brevis  , n. sp.

- Subgenital plate lateral process with a straight posterior margin forming a 90º angle with longitudinal margin of subgenital plate ( Fig. 5BView FIGURE 5 A – L); right conjunctival appendage thin or robust, with or without serrations; body relatively large............. 6

5 Lateral process of subgenital plate small and balde-like, with a straight posterior margin forming a 90º angle with longitudinal margin of subgenital plate ( Fig. 5View FIGURE 5 A – L V), general coloration dark brown, with SC+C distinctly lighter than remainder of hemelytra ( Fig. 2View FIGURE 2, S trivialis  , n. sp.).................................................................. S. trivialis  , n. sp.

- Lateral process of subgenital plate formed by a slit-like lateral and triangular caudal incisions, lateral process of subgenital plate broad and lobe shaped, right paramere with a bifurcating process ( Fig. 6NView FIGURE 6 M – W), right conjunctival appendage with trifurcating tip, vesica short, forked and serrated ( Fig. 6NView FIGURE 6 M – W)............................................. S. monstrosa  , n. sp.

6 Lateral process of subgenital plate thumb-shaped, with notch on anterior margin, forming a “key and lock” appearance with process of stVI ( Figs 5KView FIGURE 5 A – L, 6NView FIGURE 6 M – W)............................................................................ 7

- Lateral process of subgenital plate blade-shaped, without a notch on anterior margin................................ 8

7 Head slightly concave in ventral view ( Fig. 3View FIGURE 3, S. exacta  , n. sp.), body coloration uniformly light brown, right paramere thin, right conjunctival appendage needle-like, vesica uniformly thin, forming at least three coils, anophore with prominent dorsal fold.................................................................................... S. exacta  , n. sp.

- Head flat in ventral view ( Fig. 3View FIGURE 3, S. insidiosa  , n. sp.), body coloration dark brown, with SC+ C distinctly lighter, right paramere large, vesica uniformly thin forming at least four coils, anophore with fingerlike process on dorsal wall and a wide

dorsal aperture ( Fig. 6MView FIGURE 6 M – W)................................................................. S. insidiosa  , n. sp. 8 M2 vein distinctly curving, forming a wedge-shaped anterior membranal cell ( Fig. 4View FIGURE 4, S. trinitatis  ), process of stVI small, and tooth-like.............................................................................. S. trinitatis Emlsey 

- M2 vein straight ( Fig. 2View FIGURE 2, S. angularis  , n. sp.), forming a triangular anterior membranal cell, process of stVI tab-like, body small, vesica uniformly long and thin ( Fig. 5BView FIGURE 5 A – L)................................................ S. angularis  , n. sp.

9. stVI with process on posterior margin.................................................................... 10

- stVI without process on posterior margin.................................................................. 13

10 Process of posterior margin of stVI triangular, and tooth-like................................................... 11

- Process of posterior margin of stVI blunt, tab-like........................................................... 12

11 Tooth-like process of stVI large, about 1/3 length of stVI with jagged edges ( Fig. 5HView FIGURE 5 A – L), lateral process of subgenital plate toothshaped with a serrated posterior margin, subgenital plate lateral margin distinctly curving and sclerotized ( Fig. 5HView FIGURE 5 A – L), general coloration brown, eyes large, about 1/2 width of synthlipsis....................................... S. dentata  , n. sp.

- Tooth-like process of stVI small, about 1/10 length of stVI ( Fig. 5DView FIGURE 5 A – L), lateral process of subgenital plate thumb-like, lateral margins of subgenital plate distinctly jagged, general coloration dark brown ( Fig. 2View FIGURE 2, S. aspera  , n. sp.), eyes small, about 1/3 width of synthlipsis........................................................................ S. aspera  , n. sp.

12 Tab-like process of stVI large, about 1/3 length of stVI, process of subgenital plate blunt and rectangular, pointing apically ( Fig. 5GView FIGURE 5 A – L), body coloration dark brown, with fuscous patch coving 1/2 of wing membrane ( Fig. 2View FIGURE 2, S. decius  )............................................................................................. S. decius McAtee & Malloch 

- Tab-like process of stVI small, about 1/6 length of stVI, process of subgenital plate blunt, not fully differentiated from subgenital plate ( Fig. 6PView FIGURE 6 M – W), general coloration dark brown, wing membrane without fuscous patch ( Fig. 3View FIGURE 3, S. quasicompleta  , n. sp.).................................................................................... S. quasicompleta  , n. sp.

13 Process of subgenital plate uniform, without bifurcation...................................................... 14

- Process of subgenital plate bifurcating....................................................................22

14 Process of subgenital plate relatively large, well-differentiated from subgenital plate............................... 15

- Process of subgenital plate small, not well-differentiated from subgenital plate.................................... 16

15 Process of subgenital thick and straightly projecting to the left................................................. 17

- Process of subgenital plate thin and slightly projecting caudally................................................ 18

16 Subgenital plate process rounded, projecting apically........................................................ 20

- Subgenital plate process triangular, or with jagged margins.................................................... 21

17 Process of subgenital plate elongate, smooth and handle-shaped ( Fig. 5CView FIGURE 5 A – L), vesica long and forming almost two coils, anophore forming a half-pipe, body size large (~ 1.53–1.59mm), general body coloration dark brown ( Fig. 2View FIGURE 2, S. ansata  n. sp.)............................................................................................... S. ansata  , n. sp.

- Process of subgenital plate stout, with rectangular base, and modified tip......................................... 19

18 Process of subgenital plate hook-shaped, curving and projecting caudally, right paramere large, right conjunctival appendage large, curving and serrated, left conjunctival appendage prong-shaped ( Fig. 6View FIGURE 6 M – W F), body coloration light brown ( Fig. 3View FIGURE 3, S. commodus  ).................................................................... S. commodus McAtee & Malloch 

- Process of subgenital plate thin and needle-shaped, almost projecting caudaly, right conjunctival appendage flat, with serrations on ventral margin, body coloration uniformly dark brown ( Fig. 2View FIGURE 2, S. acuta  , n. sp.)................. S. acuta  , n. sp.

19 Process of subgenital plate shaped like a fishtail ( Fig. 6OView FIGURE 6 M – W), right paramere simple, without serrations, right conjunctival appendage tapering with a serrated tip ( Fig. 6OView FIGURE 6 M – W), left conjunctival appendage with blunt and finshaped processes, body coloration light brown ( Fig. 3View FIGURE 3, S. piscicaudata  , n. sp.)........................................... .. S. piscicaudata  , n. sp.

- Process of subgenital plate uniformly rectangular ( Fig. 6TView FIGURE 6 M – W), apex of subgenital plate almost connical, right paramere with a large, serrated process, right conjunctival appeandage small, and obascured by vesica, left conjunctival appendage cashewshaped ( Fig. 6TView FIGURE 6 M – W), body coloration dark brown ( Fig. 3View FIGURE 3, S. singlularis  , n. sp.)......................... S. singularis  , n. sp.

20 Body size broadly ovoid, coloration light brown without fuscous patch on wing membrane, ( Fig. 3View FIGURE 3, S. simpla  , n.sp.), process of subgenital plate small and tab-like, left lateral margin of subgenital plate slightly curving and sclerotized ( Fig. 6SView FIGURE 6 M – W), vesica long and thing, anophore with prominent dorsal fold.................................................. S. simpla  , n. sp.

- Body ovoid, coloration light brown with prominent fuscous patch on wing membrane ( Fig. 2View FIGURE 2, S. dolosa  , n. sp.), process of subgenital plate simple and tab-like, left inner-lateral margin of pygophore distinctly sclerotized ( Fig. 5IView FIGURE 5 A – L), vesica short, tapering and with serrations on apex, anophore with two distinct dorsal keels ( Fig. 5iView FIGURE 5 A – L)......................... S. dolosa  , n. sp.

21 Process of subgenital plate short, jagged and thumb shaped ( Fig. 5 LView FIGURE 5 A – L), left conjunctival appendage with three visible processes ( Fig. 5LView FIGURE 5 A – L), anophore with short, blunt process on dorsal wall, body ovoid, coloration light brown, eyes large, wider than synthlipsis ( Fig. 3View FIGURE 3, S. gorgonensis  , n. sp.)....................................................... S. gorgonensis  , n. sp.

- Process of subgenital plate small, almost triangular ( Fig. 6UView FIGURE 6 M – W), anophore with a heart-shaped dorsal fold, body ovoid, coloration dark brown ( Fig. 4View FIGURE 4, S. stricklandi  )......................................................... S. stricklandi  China

22 Bifurcating process of subgenital plate without serration on margins of anterior or posterior bifurcations................ 23

- Bifurcating process of subgenital plate with blade-shaped anterior and lanceolate posterior bifurcations, anterior margin of lanceolate bifurcation of subgenital plate process with distinct serrations ( Fig. 6RView FIGURE 6 M – W), right paramere with a long, thin and serrated process, apex of right conjunctival appendage serrated, body amygdaliform, coloration dark brown ( Fig. 3View FIGURE 3, S. serrata  , n. sp.)......................................................................................... S. serrata  , n. sp.

23 Bifurcating process of subgenital plate shaped like a claw, with larger anterior and shorter posterior bifurcations ( Fig. 6WView FIGURE 6 M – W), body coloration light brown ( Fig. 3View FIGURE 3, S. ungulata  )............................................... S. ungulata  , n. sp.

- Bifurcating process of subgenital plate root-shaped, with a stem and bifurcating tip, body coloration dark brown ( Fig. 2View FIGURE 2, S. radicata  , n. sp.)........................................................................... .. S. radicata  , n. sp.