Genera and Species 0/ Colcoptera. 21 



I have generally avoided entering into details of these organs in the 

 generic characters, reserving them for the species which alone has 

 been examined. If I have correctly recognized the sexes, there 

 appears to bo little difference between them, at least in the species 

 described below. This Tcnebrionid is not rare in collections : Pro- 

 fessor Westwood informs me that it stands in the Oxford ^Museum as 

 Dendrohlajjs Wcstivoodii (Macleay). This name has not been pub- 

 lished, I believe ; and as there is a Dendrohlax among the Lucanidaj, 

 I have retained the generic name under which it has always stood 

 in my cabinet. 



Achthosus Westwoodii. (PI. II. fig. 7.) 



A. niger, nitidus ; clypeo recurvato j prothorace antice excavato, margiue 

 supra trisiuuato. 



Hub. Australia. 



Subcylindrical, deep black, shining ; head a little dilated anteriorly, 

 narrowed behind the eyes, where it forms a thick neck, the front 

 slightly concave and somewhat finely punctured, the clypeus pro- 

 duced and slightly recurved ; epistome very distinct, subquadrate, the 

 lip obsolete ; antennae with the five or six last joints perfoliate, trans- 

 verse, and considerably broader than the others 5 mentimi stout and 

 irregidar, but with six nearly equal sides ; labrum somewhat cordate, 

 its palpi inserted in a cavity which is hollowed out on each side at its 

 base; last joint of the maxillary palpi shortly triangular, of the labial 



. obliquely ovate ; prothorax slightly broader than long, strongly exca- 

 vated anteriorly, and this part only thickly punctured, the border of the 

 excavation posteriorly strongly marked and having a trisinuate out- 

 line ; scutellum cordate-triangidar ; elytra parallel, coarsely punctate- 

 striate, the intervals broad and nearly impunctate ; body beneath black, 

 shining ; antennae and legs chestnut ; anterior and intermediate tibite 

 strongly serrated externally, the posterior only very slightly so, all 

 terminated by two or three stout spines; tarsi narrow, the claw-joint 

 as long as the rest together. Length 10 lines. 



Steongylium [Tenebrionidae]. 

 Kirby, Trans. Linn. Soc. xii. p. 417. 



Strongylium Macleayi. 



S. nigro-chalybeatum, nitidum ; prothorace transverse, antice rotundato, 

 basi angustiore ; scutello nigro-cupreo ; elytris subelongatis, seriato- 

 pimctatis, lateribus parallelis. 



Hab. New South Wales. 



Dark chalybeate blue, shining ; head finely punctured ; eyes nearly 

 contiguous above; epistome and lip bordered with testaceous; an- 

 tennae about half the length of the elytra, the third joint much longer 

 than the first and second together, the fom-th and fifth gradually 



