COLEOPTEEA.—LEA. ■ ' 215 



HELCOGASTER TRISINUATUS sp. nov. 

 $ Flavoiis; apical three-fifth.s of elytra, tip of abdomen, aud six or seven 

 apical joints of antenna^ black, inetasterniiin infuscated. A few dark hairs 

 scattered about. 



Head with a deep interocular excavation, its posterior end trisinnate, a 

 large obtuse tubercle in front ; with sparse and small punctures, becoming denser 

 about base. Antenna? rather long. Prothorax about as long as the greatest width, 

 base decidedly narrower than apex, a large, rather deep, transverse, closed, sub- 

 basal depression. Elytra moderately long, almost parallel-sided ; with fairly 

 numerous and small but (for the genus) rather sharply defined punctures. Tip 

 of ahdo)iirn with two small processes. Basal joint of front tarsi with a small 

 black comb. Length (c?9), 2-5-3-75 mm. 



9 Differs in having the head smaller, a shallow fovea representing the 

 middle of the excavation, and a feeble depression on each side, its sides ; frontal 

 tubercle much smaller and more obtuse, antenna^ shorter and thinner, elytra less 

 parallel-sided, abdomen with the tip simple, and front tarsi combless. 



Hah. — Queensland: Cairns district (A. M. Lea). — Type, /. 11949 in South 

 Australian Museum ; cotype, C/3209 in Queensland Museum. 



In my table" would be placed with F, from all the species of which it is 

 distinguished by its pale head. At first glance it appears to belong to H. pioicti- 

 pennis, but the sculpture of the head of the male is different, and the elytral 

 punctures are smaller; from the male of H. seminigripennis it is distinguished 

 by the large ceplialic excavation, with its base conspicuously trisinuate, the 

 median sinus wider than the others. Six males and twelve females were obtained. 



DASYIES SUBELLIPTICUS sp. nov. 



Black, parts of antenna^ and of legs flavous. With rather dense, depressed, 

 ashen pubescence. 



Head with small and rather dense punctures ; with two feeble depressions 

 in front. Antenna;' slightly passing base of prothorax, most of the joints trans- 

 verse. Prothorax widely transverse, base and sides finely margined ; with very 

 small punctures. Elytra at base scarcely wider than prothorax, sides slightly 

 dilated to beyond the middle ; with dense and small, but rather sharply defined 

 punctures. Length, 1-75-2 mm. 



Hah. — Queensland: Bribie Island (H. Hacker and A. M. Lea). — Type, 

 /. 12285 in South Australian Museum ; cotype, C/2310 in Queensland Musevim. 



A minute elliptical species, much like D. ellipticus on a greatly reduced 

 scale ; in my table, ^ on account of the bicoloured legs, it would be associated with 

 D. howrgeoisi (now D. julesi), but it is much smaller and wider in proportion; in 



«Lea, Trans. Ent. Soc. Lond., 1909, p. 215. 

 'Lea, Trans. Ent. Soc. Lond., 1909, p. 240. 



