56 MR. R. E. TURNER OX 



segments strongly constricted at the base ; seventh dorsal 

 segment broadly truncate at the apex ; hypopygium short, very 

 broadly rounded at the apex, with a slender apical spine. 

 Second abscissa of the radius a little longer than the third ; 

 second recurrent nervure received by the third cubital cell at a 

 distance from the base equal to one-quarter of the length of the 

 second transverse cubital nervure. 



$ . Olypeus convex, but not carinate. Head a little longer than 

 broad, subrectangular, shining, with a few scattered punctures, 

 with a strong longitudinal median ridge, on each side of which 

 is a large concave depression. Pronotum broader than long, very 

 slightly narrowed posteriorly, sparsely and finely punctured, the 

 anterior angles distinctly tuberculate ; scutellum broader than 

 long, broadly rounded at the apex ; dorsal surface of the median 

 segment very short, not so long as the scutellum, the posterior 

 slope oblique. First dorsal segment with the apical half depressed, 

 the apex of the raised basal half strongly emarginate ; second 

 dorsal segment with four well marked transverse carina? ; 

 segments 3-5 smooth at the base, sparsely but rather deeply 

 punctured at the apex. Pygidium very narrowly elongate ovate, 

 compressed into a narrow carina at the base. Tibia; thickened, 

 the basal joint of the intermediate tarsi slender, not broadened. 

 Tarsal ungues simple, not bidentate. 



Hab. Yallingup, S.W. Australia ; J 2 ni co P-> January 6th, 

 1914. Busselton, S.W. Australia ; 11 tf tf , January 24-27, 1914. 



This is the first female of the group to be described. 



The male is very near A. combustus Sm., but, in that species 

 the abdomen is ferruginous. I am inclined to think that 

 fosstdatus may prove to be only a local form of combustus, but it 

 is quite possible that the female may show stronger differences. 

 A. combustus is from Adelaide, though the type appeal's to have 

 been taken on the west coast. 



ASTHENOTHYNNUS VICAR1US, Sp. n. 



J . Niger ; mandibulis basi, macula obliqua utrinque inter 

 antennas, linea late interrupta pone oculos, vertice macula 

 utrinque, pronoto margine anteriore et posteriore, tegulis basi, 

 mesopleuris maculis duabus parvis, mesonoto macula quadrata, 

 scutello macula mediana, postscutello linea transversa, seg- 

 mentisque dorsalibus 2-6 macula obliqua utrinque flavis ; 

 femoribus, tibiis tarsisque ferrugineis ; alis hyalinis, venis fuscis, 

 stigmate bruneo-testaceo ; hypopygio linguiforme. 



5 . Fusca ; pedibus bruneis. tarsis testaceis ; segmentis dorsal - 

 ibus primo, tertio quartoque apice testaceis ; segmento secundo 

 bruneo-testaceo, sexto ferrugineo. 



Long., $ 5-7 mm. ; $ 3-4 mm. 



c? . Clypeus convex, with a low carina from the base not 

 reaching the apex, strongly produced in the middle and narrowly 

 truncate at the apex. Antenna* shorter than the thorax and 



