130 



The elytra could hardly be regarded as fasciate, as 

 although the apical fourth and basal third are paler than the 

 intervening portion, this is only vaguely infuscated, especially 

 on the female. There is a shallow depression on each side 

 of the tubercle of the male; on its front edge there is a small 

 fovea, and then a transverse ridge, both fovea and ridge 

 invisible from behind. In my table would be referred to FF, 

 but the head is very different from all the species there noted. 



Helcogaster thoracicus, n. sp. 



d . Flavous ; apical three-fifths of elytra black, meta- 

 sternum and six or seven apical joints of antennae deeply 

 infuscated. With sparse, pale pubescence, and with some- 

 longer pale hairs. 



Head moderately long, with two small frontal foveae; 

 with fairly numerous, small, but distinct punctures. Antennae 

 rather long and thin, second joint distinctly shorter than 

 third. Prothorax slightly longer than the greatest width 

 (near apex) ; a deep, narrow impression across middle, not 

 quite extended to sides, and marking the posterior end of a 

 large depression ; a small dark fascicle before and one behind 

 its middle; punctures small but rather sharply defined about 

 base and apex. Elytra moderately long; with minute, rugu- 

 lose punctures. Basal joint of front tarsi lopsided, with a 

 black inner comb. Length, 3*5-4 mm. 



Hab. — Northern Queensland (Blackburn's collection). 

 Type, I. 9203. 



Readily distinguished from all other described species of 

 Helcogaster and of Garphurus by the prothorax of the male; 

 in my table would be associated with H. simpliciceps. On 

 the type the tip of the abdomen (apparently owing to a stain) 

 is slightly infuscated, on a second specimen it is entirely pale. 



Helcogaster humeralis, n. sp. 



3 . Flavous; elytra (except shoulders), metasternum,. 

 abdomen, and five apical joints of antennae black. Sparsely 

 clothed with ashen pubescence, and with a few longer hairs. 



Head with a wide and deep inter ocn la r excavation, its- 

 posterior end evenly semicircular ; a large flat tubercle in 

 front; punctures dense and small. Antennae rather long, 

 moderately serrated. Prothorax about as long as the apical 

 width, which is considerably more than that of base; with 

 a large, transverse, closed, subbasal depression. Elytra 

 moderately long; with very minute punctures. Basal joint of 

 front tarsi with a small black comb. Length ( rf , 9)* 

 2-2*25 mm. 



