133 



third combined, second as long as third and fourth combined, 

 tenth distinctly longer than ninth. Prothorax widely trans- 

 verse, sides strongly rounded; punctures at sides much as on 

 head, but less crowded in middle. Elytra at base not much 

 wider than widest part of prothorax, sides gently dilated to 

 near apex; surface finely shagreened and with comparatively 

 coarse, crowded punctures, no sparser on any of the metallic 

 parts than elsewhere. Length, 3^-4 mm. 



Hab. — South Australia: Lake Callabonna (A. Zietz), 

 Orrallina Springs (R. T. Maurice). Type, I. 7583. 



I have named the specimens before me, although they 

 are females, as the elytral markings are quite as densely and 

 strongly punctured as the surface in their vicinity; the head 

 is also unusually flat, and with punctures very similar to those 

 on the elytra. Four specimens were taken, of which two (one 

 of which is the type) have the whole of the dark markings on 

 the elytra connected (fig. 12), on the other two (fig. 13) the 

 basal and subapical markings are disconnected, but the sub- 

 apical ones are connected across the suture. On three 

 specimens the antennae are pale, but infuscate towards the 

 tips, but the specimen from Orrallina Springs has the eight 

 apical joints black, with a slight bluish gloss; the front tibiae 

 and tarsi are flavous, the middle ones somewhat infuscated. 



Laius acervatus, n. sp. 

 PI. xiii., figs. 14, 36, 37. 



<3 . Flavous or reddish-flavous; head (parts of muzzle 

 excepted), scutellum, mesosternum, metasternum, most of 

 abdomen, hind femora, and part of middle femora black, with 

 a slight metallic gloss, tarsi and part of front femora infus- 

 cated ; each elytron with a large basal spot (the two conjoined 

 at suture), and a large, free, suboval, subapical spot metallic- 

 green (or blue). Moderately densely clothed with short, 

 suberect, whitish pubescence. 



Head almost flat between eyes, and with very minute 

 punctures. Antennae moderately long, first joint stout and 

 dilated to apex, second large and distorted, convex on lower- 

 surface, irregularly concave on upper, third to ninth moder- 

 ately long and lightly serrate, tenth thin, as long as eighth 

 and ninth combined. Prothorax almost twice as wide as long, 

 sides strongly rounded ; with fairly distinct punctures on 

 sides, but sparse and indistinct in middle. Elytra, very little 

 wider than prothorax, almost parallel-sided to near apex; 

 with dense and small, but sharply-defined punctures, as 

 distinct on all parts of metallic markings as elsewhere. Second 

 joint of front tarsi with a conspicuous, black outer rim. 

 Length ( 3 , 9 )> 3J-4 mm. 



