220 NEW SPECIES OF AUSTRALIAN COLEOPTERA, VIII., 



LaTHRIDIUS DOL1COCEPHALUS, n.Sp. 



Long, thin and greatly depressed. Pale reddish-testaceous, 

 head and prothorax darker. 



Head flat, subovate, considerably longer than wide, densely 

 punctate, without median line. Antennae thin, passing base of 

 prothorax. Prothorax flat, obovate, scarcely longer than head 

 and scarcely wider than across the eyes, sides narrowed to base 

 but nowhere suddenly constricted; densely punctate; a feeble 

 transverse impression towards base. Elytra elliptic; at base no 

 wider than prothorax, but at its widest more than twice the 

 width of that segment; suture narrowly raised throughout, 3rd 

 and 7th interstices strongly raised and conjoined at apex, the 

 interspaces with regular rows of large punctures. Length 1^ mm. 



Hob. — Swan River and Vasse, W.A. 



A pale, narrow, depressed species with an ovate prothorax 

 (nowhere suddenly constricted) and almost perfectly elliptic elytra. 

 It will probably not rest in Lathridius. 



Lathridius obsoletus, n.sp. 



Moderately long and lightly convex. Dark reddish-bi'own, legs 

 and antennae (club excepted) paler. 



Head densely punctate; without median line. Antenna? 

 scarcely as long as the width across eyes. Prothorax not much 

 wider than head; densely punctate; suddenly constricted near 

 base, base not much narrower than apex; with four feeble longi- 

 tudinal elevations, of which the outer ones are scarcely traceable. 

 Elytra at their widest about once and one-half the width of pro- 

 thoi'ax; suture, 3rd, 5th and 7th interstices finely and not very 

 acutely raised, the 3rd and 7th conjoined near apex, punctures 

 large and subquadrate, but on disc from about basal third dimin- 

 ishing in size to near apex, when they increase in size. Length 

 2 mm. 



Hob. — Mount Wellington, Tasm. 



In build and general appearance close to L. costatus, but the 

 prothorax very decidedly transverse (in L. costatus it is longer 

 than wide), much more deeply constricted near base, the^basal 



