135 



specimen was sent (with many other insects) as having been 

 taken from an insect-catching plant. 



Laius concavifrons, n. sp. 

 PI. xiii., figs. 16, 39. 

 o . Flavous, in places reddish-navous ; basal half of 

 head, scutellum, metasternum, and most of abdomen black, 

 apical half of antennae more or less lightly inf uscated ; elytra 

 with two longitudinal metallic-blue or purple vittae, each 

 narrowed in middle. Clothed with short, blackish, upright 

 setae, and with very sparse pubescence. 



Head gently convex between eyes (these unusually promi- 

 nent) and concave in front, the concavity bounded on each 

 side by a distinct oblique ridge; with minute, irregularly- 

 distributed punctures. Antennae moderately stout, first joint 

 incurved on one side, subangularly dilated on the other, 

 second large and distorted, convex on lower surface, irregu- 

 larly concave on upper, triangularly produced on inner side 

 of base, none of the following joints serrated, tenth distinctly 

 longer than ninth. Prothorax strongly transverse, sides 

 strongly rounded, with a transverse depression near base; 

 sides with dense and subrugose punctures, the middle shining 

 and with sparse and minute ones. Elytra not much wider 

 than widest part of prothorax, sides feebly dilated to near 

 apex; with crowded and sharply-defined punctures, becoming 

 much smaller and sparser on parts of the metallic markings. 

 Second joint of front tarsi partly overhanging third, and 

 with a conspicuous, black outer rim. Length ( <S , 9)> 

 3-3J mm. 



9 . Differs in having less prominent eyes, scarcely con- 

 cave in front, antennae shorter, first joint smaller and thinner, 

 second much smaller and simple (not as long as the third 

 and fourth combined), elytra less parallel-sided, and in the 

 front tarsi. 



Hab. — Western Australia: Cue (H. W. Brown). Type, 

 I. 7576. 



The elytral markings are suggestive of some forms of 

 fiavopictus, but structurally the species is closer to eyrensis, 

 from which it differs in the longitudinally-connected mark- 

 ings of elytra (on one female the - markings are blackish 

 and almost disconnected in the middle), red muzzle, with 

 sides of head conspicuously elevated, and in the very different 

 basal joints of antennae. The suture and margins of elytra 

 are now conspicuously red, in strong contrast to the flavous 

 parts, but not much reliance is to be placed on this, as in 

 all probability the pale parts in time will become of a 

 uniform shade of colour. On some of the specimens the front 



