Ploiariolini

Tatarnic, Nikolai J., Wall, Michael A. & Cassis, Gerasimos, 2011, A systematic revision of the Australian ploiarioline thread-legged assassin bugs (Hemiptera: Reduviidae: Emesinae), Zootaxa 2762, pp. 1-30: 3-4

publication ID

10.5281/zenodo.203726

publication LSID

lsid:zoobank.org:pub:4ED699EF-39C5-42C3-9056-762C6B603040

persistent identifier

http://treatment.plazi.org/id/314487B3-6B55-FFAC-FF7A-E808FA2AD8CF

treatment provided by

Plazi

scientific name

Ploiariolini
status

 

Key to the genera and species of Australian Ploiariolini 

1. Basal portion of discal cell of forewing truncate with two longitudinal veins emitted from its base (M and Cu), these veins may ( Fig. 5 View Figure B) or may not ( Fig. 4 View Figure A) form a triangular subbasal cell.................................................. 6

- Basal portion of discal cell of forewing attenuate, M and Cu fused forming a single longitudinal vein emitted from its base ( Figs. 1 View Figure A, B; 14 A; 15).................................................................................. 2

2. Pterostigma well-developed, virtually reaching wingtip ( Figs. 1 View Figure A, B); carinae on lateral portion of posterior lobe of pronotum absent ( Fig. 1 View Figure D); wool-like pile absent from head and pronotum ( Ademula  ).......................... Ademula austrina 

- Pterostigma less developed, barely surpassing the apical portion of the discal cell ( Fig. 12 View Figure A); carinae on lateral portion of posterior lobe of pronotum present ( Figs. 12 View Figure C; 14 C; 16 B; 17 C); wool-like pile present on head and pronotum ( Empicoris  ).... 3

3. Lateral carinae of pronotum forming an uninterrupted ridge between the humeral angles and the anterior extremities of the hind lobe ( Figs. 12 View Figure C; 14 C)............................................................................. 4

- Lateral carinae of pronotum incomplete, restricted to the anterior extremities of the hind lobe ( Fig. 16 View Figure B)................................................................................................ Empicoris rubromaculatus 

4. Discal cell of forewing relatively elongate, 3.5– 4 X longer than wide ( Fig. 12 View Figure A); anteocular and postocular regions of head subequal in length ( Fig. 12 View Figure C); parameres strongly elliptical prior to apex.......................... Empicoris aeneus  n. sp.

- Discal cell of forewing relatively stout, 2–2.5 X longer than wide ( Figs. 14 View Figure A; 17 A); anteocular region of head shorter than postocular ( Figs. 14 View Figure C; 17 C); parameres roughly parallel-sided prior to apex ( Fig. 17 View Figure F)................................. 5

5. Forecoxae almost entirely chestnut-coloured ( Fig. 14 View Figure D); macrochaetae of abdomen interspersed amongst an evenly spaced blanket of microchaetae ( Fig. 14 View Figure G); posterior margin of pygophore as in Figure. 14 View Figure E......... Empicoris gradapallida  n. sp.

- Forecoxae almost entirely white ( Fig. 17 View Figure D), macrochaetae of abdomen surrounded by large microchaetae-free circles, giving the abdomen a scaly appearance ( Fig. 17 View Figure G); posterior margin of phygophore as in Figure 17 View Figure E..................................................................................................... Empicoris scabraventris  n. sp.

6. Pterostigma well-developed, virtually reaching wingtip, triangular subbasal cell present ( Figs. 21 B View Figure , D, F); pronotum with faint lateral carinae ( Figs. 21 A View Figure , C, E; Tridemula  )................................................................. 7

- Pterostigma less developed, at most barely surpassing the apical portion of the discal cell ( Fig. 9 View Figure ); pronotum without lateral carinae ( Figs. 4 View Figure C; 8 B; 11) subbasal cell present ( Figs. 5 View Figure B) or absent ( Figs. 4 View Figure A; 7; 9; 10).............................. 9

7. Hind lobe of pronotum with large median tubercle on posterior border ( Figs. 21 A View Figure , E)................................ 8

- Hind lobe of pronotum simple without tubercle ( Fig. 21 View Figure C), wings as in figure 21 D.................. Tridemula metabates 

8. Eyes large, approximately equal to 1 / 2 the length of the head ( Fig. 21 View Figure E); primarily chestnut-coloured on the lateral portions of posterior lobe of pronotum below the carinae; distal portion of metafemur without annulation; wing as in Figure 21 View Figure F.............................................................................................. Tridemula pilosa 

- Eyes smaller, approximately 1 / 3 the length of the head ( Fig. 21 A View Figure ); primarily stramineous on the lateral portions of posterior lobe of pronotum below the carinae; distal portion of metafemur with large chestnut-coloured annulation; wing as in Figure 21 B View Figure ................................................................................ Tridemula contumax 

9. Discal cell of forewing with its apical portion truncate, posterior border formed by Cu with double curve ( Fig. 19 View Figure ); Mesosepis)....................................................................................... Mesosepis papua 

- Discal cell of forewing with its apical portion narrowed ( Fig. 7), posterior border formed by Cu with single curve…………. 10

10. Head and thorax covered in dense wool-like pubescence; discal cell often with a small subquadrate basal cell present at the inner proximal angle, this cell sometimes very reduced ( Fig. 5 View Figure B) or absent ( Fig. 9 View Figure ), when basal cell absent the genal portion of head is extremely tumid ( Fig 8 View Figure B; Emesopsis  )............................................................. 11

- Body shining, pubescence sparse, not wool-like; discal cell without a small subquadrate basal cell present at the inner proximal angle ( Fig. 4 View Figure A); head not abruptly constricted posteroventrally ( Fig. 4 View Figure C; Calphurniodes)........................... 15

11. M and Cu of forewing united proximally forming a triangular subbasal cell ( Fig. 5 View Figure B)............................... 12

- M and Cu of forewing not united proximally ( Figs. 7; 9)...................................................... 13

12. Forewing with irregular shaped pigmented pattern near apex of discal cell; M vein of subbasal cell sinuate; subbasal cell very narrow, 4.4– 5 X longer than broad ( Fig. 5 View Figure B).................................................... Emesopsis bunda 

- Forewing with distinct dark circular spot near apex of discal cell; M vein of subbasal cell more or less straight; subbasal cell broader, 3.5– 4 X longer than broad (see Wygodzinsky 1966: 359, Fig. 109 N)........................ Emesopsis imbellis 

13. Membrane of forewing proximal to discal cell between M and Cu entirely filled with brown fenestrated pigment; discal cell with one large central pigmented area ( Fig. 7).......................................... Emesopsis fenestrella  n. sp.

- Membrane of forewing proximal to discal cell between M and Cu with large pigmentless areas; discal cell with two to many pigmented areas ( Figs. 9 View Figure , 10 View Figure )........................................................................... 14

14. Basal cell of forewing present, discal cell with distinct transverse pigmentless line dividing main pigmented regions ( Fig. 10 View Figure )................................................................................ Emesopsis monteithi  n. sp.

- Basal cell of forewing absent, discal cell without transverse pigmentless line, with many large spots throughout ( Fig. 9 View Figure )...................................................................................... Emesopis infenestra  n. sp.

15. Posterior lobe of pronotum stramineous with a broad chestnut-coloured band medially ( Fig. 4 View Figure C); small (body length ≈ 3.9mm)............................................................................ Calphurnioides insolitus  n. sp.

- Posterior lobe of pronotum entirely stramineous without a broad chestnut-coloured band medially ( Wygodzinsky 1966: 352, Fig. 106 B); larger (body length ≈ 5.2 mm)............................................... Calphurnioides australis