330 



FAiriLY X. PSirr.APIIID^. 



longer and widex-; eleventh couical-ovate. as long as ninth and tenth to- 

 gether. Thorax almost as wide as head, sides broadly curved ; dist with 

 a median groove, and a fovea each side near bas^e connected by a trans- 

 verse line. Elytra as wide as long; diseal lines deep, confined to basal 

 third ; humeri prominent, armed with a tubercle : margin with a sharp edge. 

 Abdomen as wide as elytra, the basal segment with two short carinse. 

 Length 1.2 mm. (Fig. 152, a.) 



^[onroe, Lawreme and Clark counties; scarce. April 9-iIay 8. 

 Taken bv sweeping blue-srrass; also by sifting. 







Fig. 152. a, Bkexius insculptua; b, Rkexidius canalicutatus; c, Trimiomdba dubia; d, Melba parvula; e, Eujikc- 

 tus confluens. (After Brendel and Wickham.) 



XVI. Rhexidius Ca.sey. 188 (. (Gr., "a crack or fissure.") 



Head much wider than long ; thorax with a median groove ; hind 

 coxte contiguous : tarsi with tw'o unequal claws. One species oceur.s 

 in the State. 



02-t (1071). Rhexidius canaliculatus Ijec, Bost. Journ. Nat Hist, VI. 

 1.S49. 107. 

 Klongate-oval, subcouvex. I'ale brownish-yellow, rather densely and 

 finely pubescent. Head one-half wider than long, front transversely im- 

 presse<l; vertex elevated, feelily sulcate and with a small round fovea each 

 side close tu the eye, the two ooiinected liy a curved gi-oove. Antenns^ short, 

 stout, not reaching base of thnrnx. joints one and two subequal. cylindrical, 

 as long as wide; three to eight narrower, munded, slightl.v transverse; 

 ninth twice as wide as long: tenth twice as wide ;is ninth; eleventh wider 

 than tenth and longer than ninth nn<l tenth together. Thorax widest at 

 middle, sides lirciadl.v curved: disk convex, finely and sparsely punctate, and 

 wilh an entire median inipn'sse<l line and a trnnsverye shallow one near 

 b;isc, connecting a fovea on each side. Elytra at base as wide as thorax, 

 disk minutely punctate. Last ventral of male with a shallow transverse 

 impression. Length 1.2 mm. (Fig. 152. 6.) 



Putnam County; rare. Apiil 17. Sifted from damp vegetable 

 debris. 



Ttamccia criiiiia Brend., bi^own. vmy densely pubescent, length 

 1.6 mm., is said to occur in the "Northern States;" Bamecia arcu- 



