255 



not sexual ; the tips of the tibiae and the tarsi are sometimes 

 obscurely reddish. 



POLYACHUS AMENTATUS, n. Sp. 



d . Dark reddish brown with a more or less distinct 

 metallic gloss; muzzle, five basal joints of antennae (the others 

 infuscated), margins of prothorax, elytra (the punctures 

 darker), and legs more or less flavous. Under-surface and 

 legs moderately pubescent. 



Head with sharply defined punctures of moderate size, 

 more crowded in front than elsewhere; median line distinct 

 only at base. Eyes very widely separated. Antennae 

 moderately long; club six-jointed. Prothorax not twice as 

 wide as the median length, sides moderately rounded, 

 scutellar lobe small and not notched; punctures of moderate 

 size, rather, dense and sharply defined, becoming somewhat 

 denser and larger on sides. Elytra suboblong; with con- 

 spicuous rows of punctures in slight striae, the lateral striae 

 not much deeper than the others. Process of prosternum 

 truncated at both ends. Length, 2-25 mm. 



Hab. — Australia (old collection); South Australia 

 (Macleay Museum). Type, I. 10970. 



The punctures on the elytra bejng darker than the 

 adjacent surface the loops at the apices of some of the rows 

 are very conspicuous, and in this respect the species at first 

 glance resembles Ditropidus pulicosus; the pale parts of the 

 elytra are more brightly flavous than the other pale parts- 

 From certain directions the prothorax appears to have a 

 narro"^^ impunctate median line. A second specimen differs 

 from the tj^-pe in having the head, prothorax (the sides 

 obscurely diluted with red), and scutellum bronzy-black, and 

 most of the under-surface and legs black. 



PoLYACHUS DOLICHOGNATHUS, U. Sp. 



(f . Head (parts about the eyes black), basal third or 

 more of antennae, prothorax (extreme base black), legs (parts 

 of tarsi infuscated), and abdomen reddish-flavous; elytra 

 flavous, punctures more or less infuscated, sterna, and some- 

 times base of abdomen, black. Head, under-surface, and legs 

 moderately, the prothorax slightly pubescent. 



Head rather wide; with dense and sharply defined 

 punctures, more distinct on clypeus than elsewhere; clypeus 

 unusually long, semi circularly notched in middle of apex. 

 Eyes \\adely separated. Antennae moderately long; club 

 six-jointed. Prothorax about twice as wide as the median 

 length, sides strongly narrowed to apex, scutellar lobe small; 

 I 



