538 Mr. R. E. Tunier on Fossorial [lymenoplet'a, 



the pygidium ; from crinitus in the much shorter don 

 surface of the median segment and in colour. 



Hemilhynnus hamlyn-harrisi, sp. n. 



c? . Flavo-am-antiaciis ; vertice, mesonoto, mesosterno, scutello basi 

 segmentisque abdominalibus 3-7 nigris ; segmento mediano 

 flavo ; alis flavo-hyalinis, apice h3-alinis. 



$ . Ferruginea ; fronte segmentisque abdominalibus 3-5 nigris ; 

 segmentis dorsalibus 1-5 macula laterali utrinque, primo fascia 

 transversa lata, 2-5 fascia iuterrupta, segmentisque ventralibus 

 2-4 macula utrinque flavis ; clypeo cariuato, in spinam acutam 

 producto. 

 Long,, J 22, ? 16 mm. 



S • Clypeus convex, broadly truncate at the apex ; eyes 

 divergent towards the clypeus. Antennae about as long as 

 the head, thorax, and median segment combined, the apical 

 joints slender. Interantennal prominence strongly bilobed. 

 Head and thorax opaque, closely and finely punctured ; 

 abdomen shining and sparsely punctured. Median segment 

 steeply sloped from the postscutellum; pubescence grey on 

 the head and median segment, fulvous on the thorax. 

 Seventh dorsal segment striate, the strise curved at the apex ; 

 hypopygium triangular, with an acute apical spine, the basal 

 angles not prominent. 



? . Clypeus with a strong median carina, produced at the 

 apex into an acute spine ; mandibles very stout, blunt at the 

 apex. Eyes narrowly oval. Head convex, fully half as broad 

 again as long, rounded at the posterior.angles ; head, thorax, 

 and median segment shining, very sparsely punctured, with a 

 few long scattered grey bail's. Pronotum twice as broad as 

 long; scutellum not much narrowed, a little shorter than the 

 median segment. First dorsal segment with a transverse 

 groove just before the apex ; second segment with about 

 seven irregular transverse cai'inae which are low and curve 

 towards the base on each side, the apical margin strongly 

 raised. Segments 3-5 shining, almost smooth; pygidium 

 vertically truncate posteriorly, the dorsal plate as long as 

 the ventral, broadly ovate, closely longitudinally striated, 

 with a long spine on each side near the apex, the apical 

 margin smooth. Fifth venti'al segment rugose-striate. 



Hab. Brisbane (Hacker) ; September. Received from 

 Dr. Hamlyn-Harris, 



The male is the type. 



Both sexes are very near the common IH. apterus, Oliv., 

 but the colour of the male is 



I 



