1176 PAMIIA' IJII. — ClJinSOMEIJD.E. 



it from til laid. Acc((i'(lin<j,' to Knal) there are, in tlie V. S. IMuseuiu 

 collection, two males of h luii, i)lnc(>(l as males of viHata, while there 

 is no true ritldia male ])r(^sent. Named in hmior of ('has. W. Leng, 

 of New Yoi'k (Uty, who has shown me many favors dui'ing my work 

 on this [)ai)er. 



XLIX. LiPERODKS Molsch. 1S5S. (Gr./' troublesome.") 



'^I'liis ;^•ellus eom])rises the majority of the species formerly listed 

 under Liijx riis. They are ohlon*;, siiuill-sized beetles, having the 

 head transv(>i-sely grooved l)etween th(^ eyes and carinate between 

 the antenna^: the latter slender, longei- than half the body, joints 

 '2 and '] small, together not longer than fourth; thorax variable in 

 form, trausverse to (|uadrat(\ tlie disk' nevei' distinctly impressed; 

 elytra with ( pijtleurn' extending nearly to a|)ex; front coxal cavities 

 open 1,'ehind, the coxa' often separated by a narrow prolongation 

 of the pi'osternum ; tibia' with a terminal s])ui'. that of the hind 

 pair the longer; claws a|)pendiculate and divaricate. But one spe- 

 cies has IxM'U recognized from the Slate, though two others may 

 occur. 



KKY TO INDIANA SPECIES OF lA'PEROOES. 



(/. Tlierax yellow, twice as wide as Uiwj:: form eval : elytra black or iiic- 

 0(jus, sjiarsely punctate; legs yellow. thoracicis. 



(/(/. Tliora.x blue or black ; antenu;e yellow. 



h. Elytra imuctate and alutaceous; hind an,i,^les of thorax dentiform; all 



the femora more or less piceous. mekaia. 



Iih. Elytra very obsoletely punctate, scarcely alutaceous; hind auj;les of 



thorax uot dentiform ; middle and lilud femora often partly piceous. 



2178. cyanellus. 



L. UioniricKs Melsh., haigth 4.5-5 mm., and L. incraca Say, 

 length 5 uuii., l)oth range from I'ennsylvania to Kansas; the latter 

 has been recorded from Illinois. 



217.S ((;S(;r)). lAPERODES CYANELLCS Lcc, I'roc. I'liil. Acad. Nat. Sci., ISC"). 

 209. 

 Elongate-oblong. Above dark blue, strongly shining, beneath piceous ; 

 antennjie and legs usually entirely yellow, the middle and hind thighs some- 

 times ])iceous near base. Thorax a little wider than long, sides slightly 

 curved, hind angles distinct. n;it prominent; disk convex, smootli, sparsely 

 l>unctured at sides and base. P^lytra sparsel.v and finely ])unctate, feebly 

 alutaceous. Length 3.5-4.5 nun. 



iMarioii, -Jackson and Crawford comities : scarce. May 17-June 

 24. Occiu's on the liowers of wild rose. 



