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. 5View FIGURE 5 B) or may not ( Fig. 4View FIGURE 4 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. 1View FIGURE 1 A, B; 14 A; 15).................................................................................. 2

2. Pterostigma well-developed, virtually reaching wingtip ( Figs. 1View FIGURE 1 A, B); carinae on lateral portion of posterior lobe of pronotum absent ( Fig. 1View FIGURE 1 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. 12View FIGURE 12 A); carinae on lateral portion of posterior lobe of pronotum present ( Figs. 12View FIGURE 12 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. 12View FIGURE 12 C; 14 C)............................................................................. 4

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

4. Discal cell of forewing relatively elongate, 3.5– 4 X longer than wide ( Fig. 12View FIGURE 12 A); anteocular and postocular regions of head subequal in length ( Fig. 12View FIGURE 12 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. 14View FIGURE 14 A; 17 A); anteocular region of head shorter than postocular ( Figs. 14View FIGURE 14 C; 17 C); parameres roughly parallel-sided prior to apex ( Fig. 17View FIGURE 17 F)................................. 5

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

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

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

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

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

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

8. Eyes large, approximately equal to 1 / 2 the length of the head ( Fig. 21View FIGURE 21. A, B 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 21View FIGURE 21. A, B F.............................................................................................. Tridemula pilosa 

- Eyes smaller, approximately 1 / 3 the length of the head ( Fig. 21 AView FIGURE 21. A, B); 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 BView FIGURE 21. A, B................................................................................ Tridemula contumax 

9. Discal cell of forewing with its apical portion truncate, posterior border formed by Cu with double curve ( Fig. 19View FIGURE 19); 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. 5View FIGURE 5 B) or absent ( Fig. 9View FIGURE 9), when basal cell absent the genal portion of head is extremely tumid ( Fig 8View FIGURE 8 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. 4View FIGURE 4 A); head not abruptly constricted posteroventrally ( Fig. 4View FIGURE 4 C; Calphurniodes)........................... 15

11. M and Cu of forewing united proximally forming a triangular subbasal cell ( Fig. 5View FIGURE 5 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. 5View FIGURE 5 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. 9View FIGURE 9, 10View FIGURE 10)........................................................................... 14

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

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

15. Posterior lobe of pronotum stramineous with a broad chestnut-coloured band medially ( Fig. 4View FIGURE 4 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