TIIK DEATIT-WATCIT AND DRIIC STORK HEIOTLES. S77 



<■<: 'l"\V(i ouliM- Jniiils of ;inl(Min;i> iKU'iiially soparatod ; Trout (-oxie cou- 

 tijiuous; hiiul coxal i»lalcs iiaiTuw and parallel; mososttTiiuin 

 strongly elevated iuto a central keel wliieli is horizontal and at- 

 tains the level of the metasternum. Tiieca. 

 nil. Front eox:e not expanded into apical plates, entirely shut in in reiiose; 

 trochanter joined to the apex of the coxa. 

 (I. Front coxte contiguous or nearly so; head iniiiressed oi' excavated i>e- 

 neath for the antenna'. 

 c. runctures of elytra confused. uo( in rows; metasternum not lolied 

 in front; epipleurai without small i)its for the reception of hind 

 Ivuees; anteunte 10-jointed. XTV. Catorama. 

 cc. Punctures of elytra in rows; metasternum apparently broadly lobed 

 in front, on account of deep and narrow excavations for middle 

 tarsi ; epipleune with small pits for the hind knees ; antennie 9- 

 or 11-jointed ; pubescence mure or less bristly. XV. Protheca. 

 (/(/. Front coxte widely separated, antenme received between them. 



/. Prosternum produced behind into two long, slender, horn-like proc- 

 esses; antennai 10-joiuted ; form oval, moderately elongate. 



XVI. Dorcatoma. 

 //. I'rosteruum truncate and emarginate behind; antennae S-, 9- or 10- 

 jointed. 

 g. Eyes minutely emarginate ; elytra without stria' on the disk ; 

 form broadly oval. XVII. Eutylistus. 



(j<j. Eyes deeply and acutely incised, the notch extending to or be- 

 yond the middle; form nearly globose. XVIII. C.enocara. 



XII. Petalium Lee. 1861, (Gr., "a leaf.") 



Small, parallel more or less elongate, rather strongly convex 

 species, having the antenna? 11-jointed, about one-third the length 

 of body, joints 9 to 11 together as long or slightly longer than all 

 preceding; thorax as wide as elytra and with a short curved, deeply 

 impressed line on sides liehind the front angles; strongly excavated 

 beneath for the reception of the head : prosternum short, front 

 coxa; widely separated; second ventral segment as long as the three 

 following united. 



KEY TO INDIANA SPECIES Ol-' PETALIUM. 



(I. Punctures of elytral rows strong, close-set and distinct quite to apex, 

 the two lateral rows not much deeper than those on disk. 



1665. SEBIATUM. 



(i(t. Punctures of elytral strise finer, less close-set and becoming nearly obso- 

 lete on apical third, the two lateral rows conspicuously deeper. 



1GG6. BTSTRIATUM. 



1(;(;5 ( ). Petai.iim skriatum Fall, Trans. Amer. Ent. Soc. XXXI. 



1905. 21.^). 

 Moderately elongate. Brown, distinctly though sparsely pubescent. Head 

 and thorax densely punctate throughout; the latter with disk a little promi- 

 nent, with well-defined oblique impressions each side, its fi-ont margin 



