18 ARKIV FÖR ZOOLOGI. BAND 14. NIO 11. 



Garpluirns longus Lea. — Numerous specimens, of Form 

 4, of this specieS; all females, were taken at Atherton, Cedar 

 Creek, Herberton, and Malanda, two of tliem have parts of 

 the metasternum infuscated. One specimen, of Form 5, was 

 taken at Bellenden-Ker. 



Carpliurus vigilaus Lea. — A male, from Cedar Creek, 

 belonging to this species, has the basal fourth of elytra 

 flavous, and the legs entirel}^ flavous, except for the comb 

 on each front tarsus. Another specimen was taken at Bel- 

 lenden-Ker. 



Carpliurus armipennis Fairm. — Atherton. 



Carpliurus cristatifrons Fairm. — Atherton, Cedar Creek, 



Balanopliorus masters! Macl. — Bellenden-Ker, Colos- 

 seum, Glen Lamington, Herberton, Rockhampton. 



Balanopliorus scapulatus Fairm. — Mount Tambourine. 



Neocarpliurus impuuctatus Lea. — A specimen, from 

 Mount Tambourine, structurally agrees with the ty^pe, but 

 its prothorax is deep black, except at the base, and four of 

 the terminal joints of the antennae are infuscated. 



Helcogaster caviceps sp. nov. 



J* Flavous; scutellum, apical third of elytra, most of 

 abdomen, coxae and femora (except knees) black; two basal 

 joints of antennae and most of the third and fourth påle, 

 the others black or blackish. With sparse, dark hairs. 



Head wide, with a large, deep, median elevation, sides 

 between excavation and eyes sloping upwards, punctate 

 and opaque. Antennae moderately long, most of the joints 

 slightly longer than wide. Prothorax about as long as the 

 greatest width (near apex), surface gently undulating, but 

 with a large obtuse tubercle in each front angle. Elytra 

 slightly longer than wide; scarcely visibly punctate. Basal 

 joint of front tarsi with a small black comb. Length, 3.2 5 mm. 



Hab. — Queensland: Malanda (Dr. E. Mjöberg). Type 

 (unique), in Stockholm Museum. 



The conspicuous tubercle on each front angle of the 

 prothorax, with the curious head, render the male of this 

 species a very distinct one; its colours, however, are much f 



