BY THOMAS G. SLOANE. 533 



7. MoRio PACHYSOMUS, Chaudoir. 



Bull. Mosc. Iv. p. 358 (1880). 



This species is unknown to me in nature; by the form of the 

 prothorax, without sinuosity on the posterior parts of the sides, 

 it seems differentiated from all our other species; 14-5 x 4*5 mm. 



8. MoRio CRASSIPES, n.sp. 



(J. Elongate, robust. Black. Clypeus deeply excised in 

 middle, each side triangular, prominent and bearing a setigerous 

 puncture; prothorax cordate, widely bordered, four or five seti- 

 gerous punctures along each margin; elytra parallel on sides, 

 dentate at humeral angles, strongly and simply striate, a very 

 short (almost punctiform) striole at base of first interstice, ninth 

 interstice closely punctate for whole length. Legs stout; inter- 

 mediate tibise curved, posterior tarsi greatly dilatate and sub- 

 cylindrical. 



Head large (4*6 mm. across eyes), generally as in M. longicoUis, 

 Macl., frontal impressions shallower, wider, spaces between them 

 and eyes less convex; eyes very prominent and, with orbits, reni- 

 form; posterior part of orbits greatly developed, equalling eyes in 

 size. Antennse with four basal joints glabrous. Prothorax cordate 

 (4-7 X 5-6 mm.), truncate at base and apex; moderately convex; 

 basal area depressed; sides lightly rounded on anterior four-fifths 

 (subparallel at widest part), strongly sinuate posteriorly and 

 meeting base at right angles; anterior angles widely rounded; basal 

 angles rectangular, with a setigerous puncture; marginal channel 

 wide; median line strongly impressed. Elytra wider than pro- 

 thorax (13*8 X 6-8 mm.), convex ; interstices convex, hardly 

 narrower or more convex near apex, first without the usual ante- 

 apical setigerous punctures, third unipunctate at posterior third. 

 First ventral segment with a deep longitudinal channel in middle. 

 Posterior femora much larger and narrower, and anterior tibiae 

 more dilatate at apex than in other Australian species; inter- 

 mediate tibise curved, with a hairy brush on inner side near apex; 

 posterior tibise smooth, glabrous, longitudinally sulcate on pos- 



