Signiphoridae, Howard, 1894

Woolley, J. B. & Dal Molin, A., 2017, Taxonomic revision of the flavopalliata species group of Signiphora (Hymenoptera: Signiphoridae), Zootaxa 4315 (1), pp. 1-150 : 9

Key to genera of Signiphoridae and species groups of Signiphora

1) Fore wing marginal vein with seta M6 absent ( Woolley 1988, fig. 19) and marginal fringe long; occipital margin rounded; hind wing with parallel margins............................................................................. 2

- Fore wing marginal vein with seta M6 present ( Fig. 6 ) or if seta M6 absent then marginal fringe on fore wing short, fore wing LMS:fore wing width about 0.05); occipital margin narrowly rounded or acute; hind wing shape variable.............. 3

2(1) Head prognathous and subrectangular in frontal aspect; mesotibia subcylindrical and without long spines on dorsal surface; mandibular ducts not enlarged apically; male genitalia with digitus bearing a single apical denticle, and bearing medial denticles on phallobase between digiti.............................................................. Clytina Erd ỏs

- Head hypognathous and approximately round in frontal aspect; mesotibia obconic and with long spines on dorsal surface; mandibular ducts enlarged apically; male genitalia with digitus bearing two denticles, one at apex and one at midpoint, and without medial denticles between digiti.............................................. Thysanus Haliday in Walker

3(1) Protibia calcar without a comb of fine setae; medial sclerite of propodeum without lamelliform process; female antenna with 4 anelli; male with 3 anelli; mesofemur usually with 3 or 4 long spines; body entirely black or dark brown, often with metallic reflections, but without light coloration on mesosoma or metasoma.......................... Chartocerus Motschulsky

- Protibia calcar with a comb of fine setae; medial sclerite of propodeum with lamelliform process; female antenna variable but often with 3 anelli; male antenna also variable but usually with 3 anelli; mesofemur with 1 or 2 long spines; body color variable........................................................................... Signiphora Ashmead … 4

4(3) Fore wing submarginal vein with 1 seta; hind wing marginal vein with 2 setae; hind wing with parallel margins and discal seta absent; male genitalia without medial denticles......................................... flavopalliata species group

- Fore wing submarginal vein with 2 setae (one species with 1 seta but lacking other features above); hind wing marginal vein with 1 seta; hind wing with posterior margin narrowly or broadly rounded and with discal seta present or absent; male genitalia with medial denticles variable........................................................................... 5

5(4) Female antenna with 4 anelli; male antenna with 3 anelli; hind wing without discal seta; male genitalia without medial denticles...................................................................... dipterophaga species group (part)

- Antenna of either sex with 1–3 anelli; hind wing with or without discal seta; male genitalia with medial denticles........ 6

6(5) Fore wing marginal vein without seta M6; fore wing with very short marginal fringe (LMS fore wing:fore wing width about 0.05)........................................................................... coleoptrata species group

- Fore wing marginal vein with seta M6; fore wing with fringe variable, often long (LMS fore wing:fore wing width at least 0.20)................................................................................................7

7(6) Hind wing without discal seta; medial sclerite of propodeum with lamelliform process very short (length of process:length of medial sclerite 0.05–0.15); female mesofemur with 1 long spine and 2 very short spines; male mesofemur often dilated; male with Mt8 with ventrolateral projections conspicuous and with long spines.............. dipterophaga species group (part)

- Hind wing with or without discal seta; medial sclerite of propodeum with lamelliform process long (length of process:length of medial sclerite 0.35–1.20); mesofemur of both sexes bearing 1 or 2 long spines and 0 or1 short spines; male mesofemur not dilated; male Mt8 without ventrolateral projections........................................ bifasciata species group

Figures

FIGURES 5 – 10. Signiphora aleyrodis: 5, fore wing, female (UCRC ENT 299149); 6, venation of fore wing (UCRC ENT 299156); 7, hind wing, female (UCRC ENT 299149); 8, venation of hind wing (UCRC ENT 299156); 9, middle leg, female (UCRC ENT 299149); 10, Mt 8 of metasoma, female (UCRC ENT 299154) (M 1 = first dorsal seta, marginal vein, M 2 = second dorsal seta, marginal vein, M 3 = third dorsal seta, marginal vein, M 4 = fourth dorsal seta, marginal vein, M 5 = fifth dorsal seta, marginal vein, M 6 = sixth dorsal seta, marginal vein, Mt 8 = eighth metasomal tergum, SM 1 = first seta, submarginal vein).