Hymenoptera in the British Museum. 67 



antmlis apicalibus, segmentoque secundo dorsali macula basal i 

 utrinque flavis. 



Long. 8-9 mm. 



(J. Clypeus truncate at the apex, the labrum exposed. Fourth 

 to eleventh joints of the flagellum strongly arcuate beneath; eyes 

 only narrowly separated from the base of the mandibles. Head 

 somewhat flattened, the posterior ocelli very near the hind margin 

 of the head. Hind margin of the pronotum strongly arched, not 

 angulate. Median segment with a distinct longituduial sulcus, 

 shorter than the mesonotum, steeply sloped posteriorly, but not 

 abruptly truncate, with patches of white jiubescence at the apical 

 angles. First dorsal segment rather densely clothed with scale-like 

 hairs, as in the genus Episyron, fourth, fifth and sixth segments 

 covered with grey pubescence; second ventral segment convex, 

 seventh with a longitudinal carina. Third abscissa of the radius 

 about half as long as the second. 



Hah. Queensland, Townsville (Dodd) ; Mackay {Turner), 

 January to March; Brisbane and Stradbroke Island 

 (Hacker), October to February; Northern Territory, 

 Alexandria (Stalker), January ; Hermannsburg (Hillier), 

 April. 



The female is easily distinguished by the fasciate f orewings. 



The following species are very closely alHed to Epistjro7i, 

 but differ in having the third cubital cell much larger than 

 the second and the cubitus of the hindwing in most speci- 

 mens interstitial mth the transverse median nervure. 

 The fore wings are crossed by two fuscous fasciae. They 

 form a generic group. 



1. Psammo chares limpidus, Turn. 



Anoplius (Episyron) limpidus, Turn., Proc. Zool. Soc. 

 London, p. 332, 1910, $^. 



This is not a true Episyron, and pending a re\'ision, 

 must be retained in PsammocJmres. 

 Hah. N, Queensland, Kuranda. 



2. Psammo chares muiri, sp. n. 



$. Nigra ; mandibulis basi, clypeo dimidio apicali, scapo, pronoto 

 margine postico, pedibusque anticis brunneo-ferrugineis ; flagello 

 subtus, tegulisque fusco-ferrugineis ; aUs hyalinis, anticis fusco 

 bifasciatis. 



Long. 8 mm. 



$. Clypeus transverse at the apex, clothed with delicate white 



