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



almost touching the base of the mandibles, converging towards the 

 vertex, separated on the vertex by a distance slightly less than 

 the length of the second joint of the flagellum ; the posterior 

 ocelli nearly twice as far from the eyes as from each other. 

 Antennaj not very stout, slightly longer than the head, thorax and 

 median segment combined. Pronotum short, very broadly 

 rounded anteriorly, with a delicate median sulcus. Median seg- 

 ment coarsely transversely striated, with a tubercle on each side 

 at the base, nearly twice as broad as long, obliquely sloped 

 posteriorly. Abdomen shining, slightly pruinose ; the apical 

 segment rather coarsely punctured, with long sparse fuscous 

 pubescence. Posterior tibia} serrate, tarsal ungues with one tooth 

 before the middle, not bifid. Cubitus of the hind wing origin- 

 ating just beyond the transverse median nervure ; radial cell of 

 the fore wing rounded at apex, second abscissa of the radius 

 shorter than the third, the second cubital cell shorter than the 

 third on the cubital nervure, receiving the firsi recurrent nervure 

 distinctly before the apex, second recurrent nervure received at 

 about one-third from the base of the third cubital cell. 



Orange- ferruginous ; head and thorax covered with short golden 

 pile ; abdomen black, the apical segment fusco-ferruginous. 

 Wings flavo-hyaline, without a discoidal spot, a narrow fuscous 

 band on the outer margin. 



Length 28 mm. 



d . As in the female, but the fuscous marginal band of the wings 

 is broader, the sides of the thorax marked with black, and the 

 clypeus rather longer and not porrect. The second joint of the 

 flagellum is shorter in proportion, being less than half as long 

 again as the third. 



Length 19 mm. 



Hob. Mackay and Cairns, Q. (Turner). 



Differs in neuration from C. aureosericeus Guer., to which it 

 bears a strong superficial resemblance. The shape of the second 

 cubital cell is very different, also the position of the cubitus of the 

 hind wing. 



Cryptocheilus darwinii, sp. n. (Plate XXXII. fig. 6, $ .) 



5 . Clypeus very slightly convex, a little broader than long, 

 truncate at the apex, sparsely punctured, the labrum slightly 

 exposed. Eyes almost touching the base of the mandibles, slightly 

 converging towards the vertex, the posterior ocelli a little further 

 from the eyes than from each other. Antenna? slender and very 

 long, about as long as the thorax and abdomen combined ; the 

 second joint of the flagellum more than half as long again as the 

 third. Head, thorax, and abdomen without punctures; front 

 produced into a rounded tubercle at the base of each antenna, the 

 tubercles separated by a deep sulcus which nearly reaches the 

 anterior ocellus. Pronotum narrowed and depressed anteriorly, 

 about as long as the breadth on the anterior margin ; mesonotum 

 with a longitudinal median furrow and a furrow on each side. 



