326 THE CANADIAN ENTOMOLOGIST. 



Middle coxae narrowly separated. 



Front tarsi four-jointed ; joint one elongate, as long as two and three 

 together ; four as long as one. 



Middle and hind tarsi five-jointed ; joint one very long, longer than 

 two to four together ; five about as long as three and four together. 



Symbiochara lativentris, n. sp. — Rather broad, moderately convex, 

 gradually wider towards the abdominal apex. 



Head castaneous, shining ; prothorax darker castaneous, shining ; 

 elytra and abdomen castaneous-piceous, opaque ; antennae and legs yellow. 



Antennae moderate, a little longer than the head and prothorax 

 together, almost imperceptibly incrassate towards apex ; joint i long, 

 thick, much longer than wide ; 2 shorter than 3; 4-10 almost equally 

 wide ; n almost longer than 9 and 10 together. 



Head almost as wide as the prothorax, a little narrower in front than 

 behind ; on the front vaguely impressed ; almost invisibly, very sparsely 

 punctate, very sparsely pubescent ; eyes small, much shorter than the 

 tempora ; genae not margined. 



Prothorax narrower than the elytra, transverse, subquadrate, widest 

 near the apex, sides hence subparallel, hind angles rounded ; often broadly 

 depressed on almost the entire disc, and with two round, subbasal im- 

 pressions nearer to the sides than to each other ; almost invisibly, very 

 sparsely punctate, not very densely pubescent, with numerous stiff, short 

 black hairs on the disc and the sides. 



Elytra almost shorter, and at base about one-fifth wider, than the 

 prothorax ; sides divergent towards apex ; together much wider than 

 long ; the sutural margin shorter than the lateral one ; very finely and 

 very densely punctate, with dense silky pubescence and with a few stiff 

 black short hairs on the disc. 



Abdomen oval, widest at about the sixth dorsal segment, where it is 

 much wider than the elytra ; segments not impressed transversely at the 

 base ; very finely and very densely punctate, with dense silky pubesence 

 and a few stiff black short hairs on the segments and on the rather narrow 

 margin. 



Legs elongate, slender, all their parts elongate. 



Length, 2.3 mm. 



Nordhoff, Southern California. 



This species was first discovered by the late G. R. Crotch. Several 

 specimens are in the Hubbard and Schwarz collection. 



