BY ARTHUR M. LEA. 507 



Platvomus immaculatus, Blackb. (P. Eugenice, Blackb.). 



I have a pair of immaculatus which were taken in cop. at Tam- 

 worth; the female differs from the male in having the head, pro- 

 thorax and anterior femora entirely black (or piceous) and with 

 the anterior tibi?e piceous on their outer edge. Mr. Blackburn 

 thought it probable that his Eugenice was the female of immacu- 

 latus; Eugenim is said to differ in having the legs (tarsi excepted) 

 and the head black; in the female under examination the anterior 

 tibi?e are yellow, except outwardly. I have a specimen (from 

 Sydney) which is probably Eugenice and which has the legs (with 

 the exception of the tarsi) entirely black; the prothorax is with- 

 out the feeble frontal spots of the male of immaculatus and the 

 punctures of the elytra are very regular (more noticeably so than 

 in P. Koehelei). 



P. coNSiMiLis, Blackb. Hah. — Forest Reefs, Tamworth,N.S.W. 



P. LI viDiG aster, Muls. Hob. — Dalmorton, Tweed River, Byron 

 Bay, Gosford, N.S.W. 



P. KoEBELEi, Blackb. Hah. — New South Wales. 



Erithionyx albatus, n.sp. 



Briefly ovate, strongly convex, shining. Black (with a brownish 

 tinge); mouth-parts, antennae, tarsi and abdomen reddish. Densely 

 clothed with dull white semierect pubescence; under surface finely 

 and sparsely pubescent, the femora with yellowish pubescence. 



Upper surface densely, rather strongly, and almost regularly 

 punctate; elytra more coarsely than prothorax; epipleurse very 

 densely punctate. Intercoxal process of prosternum rather wide 

 and flat, its sides carinate. Metasternum rather strongly punc- 

 tate, and distinctly transversely wrinkled. Abdomen moderately 

 punctate ; lamellae rather small, more coarsely punctate than 

 elsewhere, terminated one-fourth from suture. Length 3, width 

 2^ mm. 



^a6.— Gosford, N.S.W. 



