83 



much less distinct. In my table would be placed with 

 H. anticus, and H. geniculatus, from which it is readily- 

 distinguished by the tenth joint; from the former it is also 

 distinguished by its smaller size and less conspicuously 

 bicoloured legs, and from the latter also by only having two 

 basal joints of antennae pale. 



A female, mounted with on© of the males by Mr. 

 Blackburn, possibly belongs to the species, but has the head 

 black, and differs in other (probably sexual) characters. 



Heteromastix angustus, n. sp. 



d • Flavous; elytra, metasternum, abdomen, and 

 antennae (three or four basal joints excepted) deeply 

 infuscated. With short, ashen pubescence. 



Head with two feeble interocular impressions. Antennae 

 long and thin. Prothorax about twice as wide as long, base 

 and apex finely margined, sides suddenly and strongly 

 dilated, or obtusely dentate, rather nearer apex than base. 

 Elytra long and thin; with small and crowded, somewhat 

 rugose punctures. Length, 2*25-2'5 mm. 



Hob. — Northern Queensland: Blackburn's collection. 

 Type, I. 11879. 



A thin, dingy species, structurally close to H . denticollis, 

 but head and prothorax flavous; the sides of the prothorax 

 are an exaggeration of those of H . pusillus, but the antennae 

 are decidedly longer than in that species, the eyes are 

 slightly larger, and the whole insect is smaller It is the 

 smallest and thinnest of all the species having entirely dark 

 elytra and pale head. 



Heteromastix collaris, n. sp. 



S . Black; prothorax, part of under-surface of head, 

 and front coxae flavous. Densely clothed with short 

 pubescence. 



. Head gently depressed between eyes, with a slight 

 longitudinal elevation near each antenna. Antennae long 

 and rather thin, third joint stouter than the following ones. 

 Prothorax less than twice as wide as long, margined through- 

 out, sides slightly but regularly increasing in width from 

 base to near apex, and then strongly rounded to apex itself, 

 which is not quite as wide as base. Elytra almost parallel- 

 sided to near apex; with crowded and small punctures (almost 

 shagreened). Length (d, 9)> 6-7 mm. 



9 • Differs in having the head smaller, antennae about 

 one-third shorter, and in the abdomen. 



Hah . — Victoria : Dividing Range (Blackburn's collec- 

 tion), South Wandin (H. H. D. Griffith from E. Jarvis). 

 Type, I. 12259. 



