231 



In general appearance close to the male of ehgantulus, 

 iDut the head is smaller, with sparser and smaller punctures, 

 non-strigose, entirely red, and jaws much smaller (on the 

 male no larger than on the female of that species) ; the sexes 

 also do not differ in the colour of the prothorax. From 

 ruficoUis it differs in its larger size, pale head, and metallic 

 elytra. Subsimilis has the head almost entirely black, legs 

 black, and prothorax with much more distinct punctures. 

 The distance between the eyes of the male is about equal to 

 the width of the clypeus, in the female it is distinctly more. 

 On one specimen the base of the head, and on another the hind 

 knees are inf uscated : the Sheffield specimen has a conspicuous . 

 coppery-green gloss on the els-tra. 



DiTROPIDUS CAEKULEIPENNIS, 11. Sp. 



. Head (base inf uscated), basal half of antennae (the 

 club blackish), prothorax (partly infi^scated), and parts of 

 front and middle legs reddish ; elytra metallic-blue ; under- 

 surface and most of legs blue or greenish-blue. Under-surface 

 with moderately dense pubescence, shorter and sparser on 

 legs, and still shorter and sparser on head. 



Head with fairly dense and rather coarse, sharply 

 defined punctures: median line distinct but shallow. Eyes 

 widely separated. Profhorax at base about twice as wide as 

 the median length, sides strongly rounded ; punctures small 

 and not very dense, a marginal row of larger ones on each 

 side. Elytra no longer than the basal width ; with rows of 

 rather large punctures, on sides no larger but set in deep 

 striae. Abdomen depressed in middle, with a shallow apical 

 fovea. Legs stouter than usual, but not very long. Length 

 (6 , 9), 3-75-4-25 mm. 



9 . Differs in having slightly smaller jaws, eyes more 

 widely separated, club thinner, abdomen larger, more convex, 

 the fovea much larger and deeper, and the legs slightly 

 shorter and much thinner. 



Hah. — North-western Australia (Macleay Museum). 



The bright blue elytra, with conspicuous rows of 

 punctures, reddish prothorax (although usually largely 

 inf uscated), and powerful legs of the male render this a very 

 distinct species. The blue is as in ahdominalis, coelesfis, and 

 vigilant. The infuscation of the base of the head is usually 

 encroached upon by a reddish triangle; the infuscation of 

 the pronotum is pronounced and extensive on most of the 

 specimens, leaving only parts of the base and apex reddish; 

 the red parts of the legs are usually obscure and confined to 

 the femora. The pubescence is rather longer than usual. 



