131 



9 . Differs in being larger, head smaller, of a dingy 

 reddish-brown, with less prominent eyes, a vagne curved 

 •depression instead of the excavation, and a moderately long 

 obtuse ridge, instead of the froutal tubercle, antennae thinner 

 and less serrated, prothorax narrower in front, scutellum 

 black, elytra with less of the shoulders flavous, abdomen wider, 

 and front tarsi combless. 



Hub. — Queensland: Cairns district, a pair taken in cop. 

 (A. M. Lea). Type, I. 11925. 



In my table would be placed with //. major, which is 

 a much larger species, with very different head, elytra entirely 

 dark, etc. At a glance the types look like small specimens 

 of H. m.acidiceps, but the head is without a spot, and differ- 

 ently sculptured. 



HELCOGASTER SEM1NIGRIPENNIS, n. sp. 



(5 . Flavous ; apical half of elytra, mesosternum, and 

 metasternum black, apical joints of tarsi, and part of 

 -antennae infuscated. Sparsely clothed. 



Head with a small interocular impression, or short 

 median line, an oblique impression each side in front. Pro- 

 thorax slightly longer than wide, apex slightly wider than 

 base, a fairly large, transverse, closed, subbasal depression. 

 Elytra moderately long; with very minute, rugulose punc- 

 tures. Basal joint of front tarsi with a small, black comb. 

 Length, 2 mm. 



Hah. — Queensland : Cairns, obtained on sticky seeds of 

 Pisonia brunoniana (F. P. Dodd). Type (unique), I. 11914. 



The three apical joints of antennae are missing from the 

 type, the three basal ones are flavous, the others infuscated. 

 The visible parts of the head are impunctate, but the base 

 is concealed on the type; between the frontal impressions 

 the surface is gently convex, but it could hardly be regarded 

 as tuberculate. In my table the species would be associated 

 with H. simpliciceps, from which it is distinguished by its 

 smoother head, with small but distinct impressions, flavous 

 portion of elytra not produced along sides, and entirely pale 

 abdomen. From H. tliorac/cuSj it is distinguished by its 

 smaller size and differently sculptured head and prothorax. 



Dasytes corticarioides, Lea. 



This species occurs in abundance in many parts of 

 South Australia, including Price and Kangaroo Islands. 

 Two specimens, from Swan River, are considerably larger 

 (2*25 mm.) than usual, and rather more robust, but probably 

 Tepresent a variety only. 



