THE MELANDRYID BARK BEETLES. 



Throughout the State; frequent. May 12-July 31 Occurs be- 

 neath hark ami on dead limbs. The presternum is prolonged nearly 



as much as in the click beetles of the genus Melanotus, so oi 



which it closely resembles. However, the cavity ... the mesosternum 

 is much more shallow. 



Tribe IV. MALLODKYIM. 



This tribe is also represented by the single genus UOUdrya 

 Horn, formed for a "rather inconspicuous spee.es. .V. suhvnea 

 Horn, resembling a depressed Melandrya or an Emmesa from 

 which it differs bv the slender tarsi, the penultimate joint not being 

 excavate-emarginate and the front tarsi not dilated m the males. _ 

 It is oblong, piceous. with faint feneous surface lustre, and 6 to b.o 

 mm in length. The types were taken by Dury near Cmeinnati, 

 who found them rather abundant on the branches of dead honey- 

 locust. It probably occurs in the southeastern part ot Indiana, but 

 no specimen has been seen from the State. 



Tribe V. OSOHBSIINI. 

 Rather small oval, convex forms, having the head vertically de- 

 flexed- antenrm> 11-jointed. the joints gradually thickened, except 

 in Microscapka. where they end in a distinet club ; front cox* oval 

 separated bv the presternum; tarsi filiform, claws simple Four ol 

 the five genera, recognized by Horn as composing the tribe are 

 known to be represented in the State, while the single species ot the 

 other may occur. 



KEY TO INDIANA GENERA OF ORCHESIINI. 



a. Spurs of hind tibi* small or moderate, not serrate, but often with trans- 

 verse ridges. 

 1, Hind coxae not oblique ; form oval. 



c Elytra with rows of moderate or coarse punctures; presternum 

 narrowing to a point and nor prolonged behind the coxa?. 



VI. Eustrophus. 



cc Elytra finely and irregularly punctured; presternum prolonged be- 

 hind the coxae and separating them, the apex slightly broader. 



VII. HOLOSTROPHUS. 



66 Hind coxae oblique: form oblong-oval : length less than 5 mm. 



OQ. nam lu- yjxi. HAIXOMENrS. 



aa Spurs of hind tibiae large, the inner one very long, pectinate. 



(1 Second antennal joint normal. IX - hesi . 



da Second antennal joint thickened; antennae strongly clavate. 



MlCROSCAPHA. 



