354 MR. R. E. TURNER ON THE [Feb. 15, 



There is a delicate, longitudinal, median carina on the anterior 

 half of the mesonotum. 



Length 17 mm. 



Hob. South Perth, W. A. (H. M. Giles). 3 <$ . January. 



"Very near atrifrons Sm., but differs in the more even serration 

 of the intermediate femora, which in this species is continued 

 from the apex almost to the base, whereas in atrifrons the apical 

 half is not serrate and the extreme base is rather abruptly 

 broadened and also smooth. In atrifrons the lobes of the basal 

 joint of the anterior tarsi are more strongly developed and the 

 seventh dorsal segment is more narrowly rounded at the apex. 



Bembex aureofasciata, sp. n. (Plate XXXII. fig. 14, <S .) 

 <$ . Mandibles with one tooth on the inner margin ; labrum 

 longer than mandibles, smooth, and without a sulcus. Clypeus 

 convex, somewhat flattened in the middle, covered with very 

 short, delicate, white pubescence. Inner margins of the eyes 

 parallel ; the antennas inserted a little further from each other 

 than from the eyes, the scape rather stout ; second joint of the 

 flagellum nearly as long as the third and fourth combined, none 

 of the joints emarginate, spinecl, or hollowed. Anterior tarsi not 

 thickened ; the basal joint with six spines on the outer margin 

 including the two apical spines, the outer margin very feebly 

 lobed and narrowly margined with black ; intermediate femora 

 serrate beneath ; intermediate tibiae with the apical spines well 

 developed. First ventral segment with a longitudinal carina at 

 the base ; the second segment with a very strong longitudinal 

 carina, which is rounded, curved, and very prominent at the apex, 

 very similar in shape to that of B. musca llandl. Sixth ventral 

 segment not modified, the eighth ending in an acute apical spine. 

 Seventh dorsal segment rounded at the apex. Closely and finely 

 punctured ; the head, thorax, and base of the abdomen with 

 cinereous pubescence. 



Black; the mandibles (except at the apex), labrum, clypeus, 

 the extreme base of the scape, pronotum, tegulse, the scutellum 

 (except in the middle), postscutellum, femora, tibia? and tarsi, a 

 broad band at the base of the first dorsal segment of the abdomen, 

 a narrow band at the apex of the first ventral segment, a broad 

 band on the middle of the second segment above and beneath 

 marked with a small black spot on each side on the dorsal surface, 

 and a, narrower band emarginate on each side anteriorly on the 

 third dorsal segment, orange-yellow. Wings pale fusco-hyaline, 

 clear hyaline at the apex, nervures fuscous. 



Length 16 mm. 



Hob. South Perth, W. A. (H. M. Giles). January. 



Allied to B. atrifrons Sm., but in that species the seventh and 

 eighth joints of the flagellum are not normal and there is a 

 seventh spine on the basal joint of the anterior tarsi ; the colour 

 is very different, being in aureofasciata of the orange shade which 

 is characteristic of many Australian Aculeates, but which does not 

 occur, so far as I knoAv, in an}' other species of Bembex. 



