STKATIOMYID.i:. 19 



o. Fourth veiu with only two terminations (i.e., 

 only two true veinlets issuing from discal cell, 

 the apparent ord veinlet being the upper [p. 19. 



branch of the 5th vein) Pachygastmnje, 



Fourth vein with three terminations (i.e., three 

 true veinlets issuing from discal cell) ; upper 

 branch of r)th vein either separated from discal 

 cell by the posterior cross-vein being present, 

 or in punctiform contact with that cell when 



posterior cross-vein is absent 4. 



4. Anterior cross-vein joining- prajfurca to discal cell. SARGixiE, p. 72. 

 Anterior cross-vein joining ord vein, as usual, to 



discal cell 5. [p, 56. 



o. Posterior cross-vein present STEATlOMYixiE, 



Posterior cross-vein absent Clitellaeiin^, 



[p. .38. 



The Hue of deniarcatiou between the two last subfamilies is 

 very iudetiuite, and, as more than one author has suggested, they 

 might well be united into a single subfann]}^ The posterior cross- 

 vein is often a variable quantity even in groups in which it is 

 technically present — for instance, it is absent in Ftecticiis anstralis^ 

 Sch., though present in the other Indian species. Wiliiston sinks 

 the alleged subfamily Hebmetii^^e in Clixellakiix^ and his view 

 is adopted here. 



Subfamily PACHYGASTRIN^. 



Head comparatively small ; eyes generally bare ; antennae of 

 A'ery varied form, branched (Ftilocera), elongate {Tinda, etc.) 

 filiform {Straiios2j7ieconi i/ia) , globular (Pachi/r/aster), or of irregular 

 shape. 



Thorax subquadrate, oval ; scutellum unarmed or with two or 

 four marginal spines ; sometimes produced upwards or hindwards 

 into a strong blunt cone. Ahdomen 5- or 6-segniented, of very 

 varied shape ; often exceedingly broad, much broader tlian thorax, 

 globular ; sometimes oval or oblong, or much elongated and more 

 or less cylindrical. Lecfs comparatively short, slender, smooth. 

 Wings with 8rd vein simple or forked ; posterior cross-vein absent 

 through 5tii vein forming hinder side of discal cell ; 4th vein with 

 only two veinlets. Four posterior cells, united on wing-margin. 



The essential character of this subfamily is the presence of 

 only three veins appa^-ently issuiug from the discal cell, the lower 

 one being the upper branch of the 5th vein. Mostly bare 

 species. 



Tabu of Genera* 



[p. 3.3. 



1. Antennpe branched Ptilocera, Wied., 



Antennae of various forms, never branched. 2. 



For table of Oriental genera, vide Brunetti, Kec. Ind. Mus. i, p. 89. 



o2 



