12 



LAMELLICORNIA — APHODIIDAE. 



S S, Mesosternum not ridged. 



a a. Femora yellow, at least beneath. 



A a. Palpi yellow ; femora entirely yellow. 



Oblong, slightly convex. Black ; head with a brown- 

 red spot on each side ; sides of thorax yellow ; scutellum 

 brown, with a yellow spot in middle ; elytra gray -yellow, 

 with two narrow bands of black spots and with the striae 

 brown ; metasternum yellow in middle ; antennae yellow, 

 with brownish club. Elytra with extremely fine, short 

 hairs toward apex. L. If — 2f 1. Moderately common. 



A. sticticus, Panz. 



JB b» Palpi black or dark brown ; femora 

 yellow beneath only. 



Oblong, convex. Black; head with a red-brown spot on 

 eacli side ; sides of thorax reddish-yellow ; elytra yellow, 

 each with seven small oblong black spots ; metasternum 

 brownish-yellow in middle ; antennae broAvnish-yellow 

 with brown club. Elytra without hairs. L. 2 — 2| 1. Not 

 common. A. conspurcatus, Lin. 



b b. Femora brown. 



Much shorter and more convex than A. inquinatus. 

 Black ; sides of thorax sometimes dark red-brown ; elytra 

 brownish-yellow, with suture and two bands, formed partly 

 of square spots, black; antennae brown, club blackish; 

 palpi black-brown. Elytra without hairs. Male with pos- 

 terior femora dilated. L. 1^ — 2| 1. Not common. 



A. tessulatus, Payk. 



2, Base of thorax not bordered. 



Oblong, convex. Brown-red ; head and disc of thorax 

 black; elytra with an indistinct black spot behind middle ; 

 antennae and palpi yellow ; legs brown-red. Elytra with 

 broad, shallow notched striae, interstices raised into a ridge 

 in middle and each with a row of large, somewhat confluent 

 punctures. L. 2 1. Not common. A. Zenkeri, Germ. 



II. Prominences on forehead indistinct or absent. 



1, Base of thorax bordered. 



A A, Posterior angles of thorax obtuse. 



a a. Interstices on elytra wrinkled, dull. 



A a, Mesosternum not rideed. 



