JOURNAL OF ENTOMOLOGY AND ZOOLOGY 3 



The radial cross-vein in the front wings with its caudal 

 end basad of R^, or if it or B5 is absent or they are 

 opposite then the anterior tibial have a single apical 

 spur. 



D. Front wings with JL complete; ovipositor more or 

 less saw-like, usually exserted and with promi- 

 nent sheaths: antenna^ not inserted beneath a 

 frontal ridge. 



E. Anterior tibise each with only one apical 

 spur; propodeum divided longitudinally. 

 F. Pronotum presenting a strictly cephalic 

 surface, or both cephalic and dorsal 

 surfaces; front wings with the me- 

 dio-cubital cross-vein subequal in 

 length to the transverse part of 

 media. (Fig. 6.) 



G. Pronotum transversely r i g h t- 

 angled, so that it presents both 

 a strictly dorsal and a cephalic 

 aspect, the latter concave ; 

 mesopra^scutum poorly defined 

 or wanting ; Sc^ absent ; maxil- 

 lary palpi one-segmented ; lab- 

 ial palpi two or three-segment- 

 ed, the last segment enlarged 

 and bearing a large sensory 

 cup. the first segment not 

 elongate. (Figs. 16 and 17.) 



SIEICIDJE 



GG. Pronotum a narrow collar ex- 

 tending around the front of 

 the thorax, therefore present- 

 ing lateral and cephalic but no 

 dorsal aspect; mesopricscutum 

 well developed; Scj present in 

 the front wings as a transverse 

 vein; maxillary palpi four- 

 segmented : labial palpi three- 

 segmented, the first segment 

 elongate. XIPHYDRIIDJE 



FF. Pronotum more or less quadrate, not 

 transversely angled, presenting lat- 

 eral and dorsal but no strictly 

 cephalic surfaces, its posterior mar- 

 gin extending almost directly from 



