238 Mr, Arthur M. Lea's Revision of the 



Helcogaster punctilobus, n. sp. 



^. Flavous, in places reddish ; apical two-thirds of elytra and 

 extreme tip of abdomen, black ; apical two-thirds of antennae and 

 metasternum infuscate. 



Head transverse, not largely excavated but divided into two large 

 feebly convex lobes, each of which is densely and rather coarsely 

 punctured, the space between depressed, shining and impunctate. 

 Antennae long and thin. Frothorax rather feebly transverse ; apex 

 wider than hsxse. Elytra rather long, each separately rounded at 

 apex, almost impunctate. Basal joint of front tarsi about half their 

 total length, with a rather wide black inner rim. 



Length to apex of elytra 2, of abdomen 3 mm. 



9 . Differs in having the head smooth, almost impunctate and less 

 transverse, with smaller eyes and simple tarsi. 



Hah. N. S. Wales : National Park, BuUi (A. M. Lea). 



In three females the metasternum is darker than in 

 the male and the abdomen varies — in one being almost 

 entirely black, in another only the two apical segments are 

 dark, whilst in the third it is slightly infuscate below (ex- 

 cept for the two apical segments) and almost entirely dark 

 above. In the male the prothorax is strongly ridged (not 

 carinate) along the middle, probably naturally so, but 

 possibly owing to irregular contraction. 



In appearance the species is close to hthcrculifrons and 

 the following, but the sculpture of the head of the male is 

 very different. In the table* it would have been placed 

 next to bilohis, from which it is at once distinguished by 

 its colour ; the sculpture of the head, however, is also 

 different. 



Helcogaster bacchanalis, n. sp. 



^ . Flavous ; base of head and apical two-thirds of elytra black, 

 metasternum, apex of abdomen and apical half of antennae infuscate. 



Head transverse, largely excavated between the eyes, these larger 

 than usual. Antennae long and rather thin. Prothorax transverse, 

 apex much wider than base. Elytra rather long and dilated pos- 

 teriorly ; with small, indistinct, rugulose punctures. Basal joint of 

 front tarsi less than half their total length and with a black inner 



* This and the following species were described after the table 

 was prepared. 



