6 ARKIV FÖR ZOOLOGI. BAND 14. N:0 11. 



Antennae raoderately long, tbird to tenth joints acutely 

 serrated. Prothorax aboiit as long as apical width, front 

 angles rounded, hind ones produced and acute, sides evenJy 

 incurved to middle, central areolet about two-tbirds the 

 length of tbe segment, connected witb apex by a costa; 

 with rather dense punctures on apical tbird, and margining 

 base and sides. Elytra tbin and parallel-sided, subsutural 

 costa trifurcate near base. Length, 6,75 mm. 



Hab. — Queensland: Cedar Creek, in April (Dr. E. Mjö- 

 berg). Type (unique) in Stockholm Museum. 



In general appearance resembling a small female of T . 

 semiatratus, but prothorax narrower and of somewhat dif- 

 ferent shape, and black of elytra more advanced towards 

 the base, &c; in my table would be associated with T. g^^if- 

 fithi, which is a narrower species, with much less of elytra 

 black. The påle portion of the elytra is slightly longer on 

 the elevated parts than on the punctures. 



Triclialus nubicollis Fairm.? — Three specimens from 

 Bellenden-Ker, Yarrabah and Colosseum, are extremely close 

 to T. 7iuhicollis, and I cannot satisfactorily distinguish them 

 from specimens of that species. 



Trichalus froggatti Macl. — Specimens were obtained 

 at Atherton, Bellenden-Ker, Cedar Creek, and Malanda; 

 several of the Atherton specimens have an infuscated blotch 

 on the discal areolet (but not including its margining costae) 

 and a space on each side of it at the base. 



Trichalus semiatratus Le a. — Specimens were obtained 

 at Cedar Creek, Malanda and Yarrabah. The female (hitherto 

 unknown) differs from the male in having the antennae ser- 

 rated and considerably shorter. 



Trichalus angustulus Macl. — Cairns, Cedar Creek. 



Trichalus äter Macl. — Atherton, Bellenden-Ker, Cedar 

 Creek, Malanda, Yarrabah. 



Trichalus atripennis Macl. — Cedar Creek. 



Trichalus nubicollis Fairm. — Bellenden-Ker, Malanda, 

 Yarrabah. 



Trichalus ampliatus Waterh. — Mount Tambourine. 



1 



