HYMENOPTERA. 17 



Male. Resembling the female, the face densely clothed with 

 long fulvous pubescence, the basal segment of the antennae bright 

 ferruginous, the flagellum moniliform, the apical segment dilated, 

 truncate, the truncation hollowed out. Thorax, the pubescence 

 pale fulvous at the base, becoming darker at its apex ; on the 

 metathorax it is of a pale fuscous ; beneath, anteriorly pale ful- 

 vous, posteriorly white ; all the tibiae and tarsi bright ferruginous. 

 Abdomen elongate-ovate, having a silky gloss, the margins of 

 the segments white ; the two basal segments have a thin pale 

 fulvous pubescence, on the three following it is black ; the apical 

 segment ferruginous, rugose ; beneath rufo-piceous, the segments 

 fringed with white pubescence. The pubescence in both sexes 

 of this species is beautifully plumose ; each individual hair, parti- 

 cularly on the thorax and posterior tibia, is feathered, which is 

 observable under a moderate magnifying power. 

 Hab. W. Australia. 



Genus 8. EURYGLOSSA. 

 Euryglossa, F. Smith's MSS. 



Head transverse, in front orbicular, antennae inserted about 

 the middle of the face, flagellum subclavate, eyes lateral elon- 

 gate-ovate ; ocelli placed forwards on the vertex in a triangle ; 

 mentum moderate in length, broad, rounded at the base; the 

 labium broad, slightly emarginate in front, its sides rounded ; 

 paraglossae short and rounded ; the labial palpi four-jointed, the 

 two basal joints much stouter than the two following, the third 

 and fourth joints longer than the second, the third clavate, the 

 fourth subcylindric ; the basal portion of the maxillae twice as 

 long as the lobe, the lobe rounded and broad at its apex, its apical 

 margin ciliated ; the maxillary palpi six-jointed, the basal joint 

 stout, gradually tapering to the apical joint, which is cylindric, 

 the labrum angulated, its margin ciliated. The superior wings 

 have one marginal and two submarginal cells, the former not 

 quite so long as the two latter united ; the first recurrent ner- 

 vure received just within the second submarginal, the second 

 recurrent nervure uniting with the second transverse nervure. 

 Abdomen depressed, subovate. (Plate II. Details.) 



1. EURYGLOSSA CUPREO-CHALYBEA, n. s. B.M. 



Female. Length 4 lines. Head and thorax nigro-aeneous, 

 deeply but not closely punctured, clypeus subconvex. Thorax, 

 the disk shining; the enclosed space on the metathorax very 

 smooth and shining ; wings fuscous, the apical margins palest ; 

 beneath closely punctured, the legs nigro-piceous, having a scat- 



