BV H. J. CARTEK. 217 



vex and bearing a foveate puncture near scutellum, other 

 intervals flat. /•Jpiphunr and underside smooth. Legs thin, 

 fore tibicB carinate on outside edge, slightly enlarged and 

 shortly bispinose at apex. l)nii('iisu)ii)<, 11-12 x 4 mm 



Hab. — Dalveen, South Queensland. 



Six specimens of this brilliant little species were taken by 

 the aiithor, in January, 1911. The sexual characters are 

 very slight. One larger and proportionally narrower speci- 

 men, presumably male, has the hind tibiae slightly bowed and 

 expanded, and the basal joint of the front tarsi a little en- 

 larged. This species belong to the ('. poJifirnJIiii Bates, sec- 

 tion so far as the absence of a dentate hind angle to prothorax 

 is concerned : but, in the foliaceous margins, it resembles C 

 ffneus Bates; and, in colour, ('. ai/rfu.t Cart.; while the 

 elytral scxilpture is entirely different from that of any de- 

 scribed species of the genus. The great numerical inequality 

 of the sexes is noteworthv, females being to males as ~): 1. Of 

 a large number of ('. feuioratiD^ Bates, taken at Acacia Creek, 

 a few days later, the proportion recorded was 40 females to 8 

 males, or again a ratio of 5:1. 



Cardiothorax laticollis, n.sp. 



Elongate-ovate, violet to dark bronze, nitid, body beneirh 

 and legs nitid black, tarsi and apex of tibiie clothed with 

 reddish hair. 



Head : labrum very prominent and strongly punctate, 

 right mandible with apex curved, hollowed below (gouge- 

 like), left mandible pointed, frontal impression deeply 

 marked, with a large foveate imjDression on its centre, this 

 in turn with a few small punctures, the whole surface micro- 

 scopically punctate. Antennae thick, extending to base of 

 prothorax, joints 4-10 ovate and successively larger, eleventh 

 elongate-ovoid. Prothorax, 5x6 mm., length measured in 

 middle ; arcuate. emarginate at apex, subtruucate (non-coarc- 

 tate) at base, wider at apex than at base, widest at middle: 



18 r^^rj-^-'^'o 



LIBRARY 



l-^. 



