I04 HY^rENOPTERA ACULEATA. 



angle witli the npper basal at their juncture. Median nervure 

 of the posterior wing not forked, cross nervure uniting the 

 posterior nervure with it, joining it before its upward bend ; 

 face with a well-developed blunt tubercle between the 

 antennte. Pygidial area of the ? not clearly developed. 



P. pallipes, Tanz. [atratus, Pan:., Shuck, ^c). 



Black, antennas beneath, anterior tibi« in front, and 

 tarsi testaceous, and the c? with the intermediate tarsi also 

 pale. Head closely and rugosely punctured, face below 

 the antennse clothed with silvery hairs, between the 

 antennte is a well marked carina, wide posteriorly but 

 sharpened in front where it joins a transverse carina which 

 bounds the antennary cavities in front, antennae in the ? 

 somewhat clavate j mesonotum shining, punctured, wings 

 hyaline, propodeum with a triangular clathrate basal area, 

 sulcate down the centre, sides irregularly strigose ; abdomen 

 shining, clothed with short whitish pubescence, especially 

 towards the apex ; legs clothed with short adpressed hairs, 

 posterior tibite simple, calcaria very long and fine. 



L. 6-7 mm. 



Common and generally distributed, may be bred from 

 pierced bramble stems. Mr. V. R. Perkins says that in 

 Gloucestershire it breeds in dead elm wood, and is very 

 abundant ; Shuckard says it nidificates in sand ; it has also 

 been known to nest in straws of thatch ; it provisions its 

 nest with Ajjlddcs. 



GORYTES, Latr. 



Arpactits, Panz. ; Hojdisus, Lep. 



I have followed Handlirsch in uniting under Gorytes, 

 Arpactits and Hoplisus, which in my synopsis I treated as 

 distinct genera. The genus thus considered may be easily 

 distinguished from the other Sphegidw by the following 

 characters. Antennae distinctly longer in the S than in the 

 5, often very much so, mnadibles not sinuate externally ; 

 anterior wings with three sub-marginal cells, none of which 



