330 



FAMILY X. PSELAPHIDJE. 



longer and wider: eleventh conical-ovate, as long as ninth and tenth to- 

 gether. Thorax almost as wide as head, sides broadly carved; disk with 

 a median groove, and a fovea each side near base connected by a trans- 

 verse line. Elytra as wide as long; discal 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 carina?. 

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



Monroe. Lawrence and Clark counties; scarce. April 9-May S. 

 Taken by sweeping bine-grass; also by sifting. 



Fig. 152. a, Rhexius insculptus; b, Rheiidius canaliculatus; c, Trimiomeiba dubia; d, Melba parvvla; e, Euphc- 

 tus confluent. (After Brendel and Wickham.) 



XYI. Rhexidius Casey. 1887: (Gr.. ""a crack or fissure.") 



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

 coxa? contiguous : tarsi with two unequal claws. One species occurs 

 in the State. 



G24 (1971). Rhexidius caxalictlatus Lee. Bost. Journ. Nat, Hist.. VI. 

 1849. 107. 



Elongate-oval, subconvex. Pale brownish-yellow, rather densely and 

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

 pressed : vertex elevated, feebly sulcate and with a small round fovea each 

 side close to the eye. the two connected by a curved groove. Antenna? short, 

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

 as long as wide: three to eight narrower, rounded, slightly transverse: 

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

 than tenth and longer than ninth and tenth together. Thorax widest at 

 middle, sides broadly curved : disk convex, finely and sparsely punctate, and 

 with an entire median impressed line and a transverse shallow one near 

 base, 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. 132. &.) 



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

 debris. 



Ramecia crinita BrencL brown, very densely pubescent, length 

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



