Tin: i..\\ii:r.i,ic()i;x p.icirrMCS. 949 



XVni. lloi-MA llli-vi-. ISO;^ (Gr., "arms.") 



01)l()i)^'. iiKUT <>i' N'ss ll;iltt'ii("(l insects, li\'iii^' on llowci's by (-lay, 

 l)enoatli (Mivcr at niulil, and liaxinii' Itic Ixidy entirely or in part cov- 

 ered witli Hat scales ol' a yellowish, hi-ownisli or silvery line; claws 

 of i'l'ont and middle tarsi chelate and uneijual, the outer one being 

 larger and bilid at tip: seutellum small; club of antenna' three- 

 jointed, 'i'he two sexes o!'t(>n difftM' much in size and color and the 

 males ha\-e tiie hind tibi;e and tarsi stouter. 



KKY TO l.MllAX.V SIMXIKS OF UOPl.lA. 



(I. riaw of liiiitl tarsi not cleft. 



b. Sexes dissimil.-ir in coidi-. male black, liairy with grayish pubescence; 



female brown with ]ial(> brown and yellowish silvery scales; thorax 

 wide, narrowed in fmnt. its sides snbangnlate and rounded. 



ITOt. TRIFASCIATA. 



hi). Roth sexes dull black, thinly clothed with elongate grayish scales; 

 thorax with sides obliiiue, sliglilly rounded; clypeus more strongly 

 margined in front. 1792. trivialis. 



(Id. Claw of hind tarsi cleft near the tip. 



c. Sides of thorax strongly angulated ; black, sides of thorax, suture and 



margins of elytra and two obliqtie branches with silvery scales. 



1793. LIMHATA. 



cc. Sides of thorax either broadly rounded or nearly straight. 



(/. Brown, clothed with very small scales, these oval on thorax, nar- 

 row and hair-like on elytra. 1794. modesta. 

 (1(1. Dull brownish-yellow, very densely clothed with silvery scales, these 

 circular on thoi'ax. l)i-oadly o\:il on elytra. 



1704a. var. rarhata. 



1791 (otii'O). lIoruA TRIFASCIATA Say. Journ. Phil. .Vcad. Xat. Sci., III. 

 1S2:;. 200; ibid. II. 301. 

 ()i)l(:ng. .Male dull black; thorax and elytra rather density clothed 

 with elongate grayish-yellow prostrate liairs or hair-like scales; ])ygidium 

 and abdomen densely covered with silvery scales; these replaced by erect 

 gray hairs on front of mider surface and legs. Female with head black; 

 thorax and elyti'a reddish-brctwn, covered with yellowish scales, soiue of 

 those of elytr.i usually more densely placed so as to form three irregular, 

 undulatett bands, one at liase. another at middl(> and a third near aiiex; 

 entire under surface clothed with silvery scales. Head and I borax in both 

 sexes with numerous erect grayish or yelhavish hairs. Clyiieus truncate, 

 the front edge reflexed. I>ength 0.5-9 nun. 



Lake, Starke and Vigo counties; scarce. April 8-May 27. Oc- 

 curs on flowers of Crata'fjHs. etc. Passes the winter in pupal stage 

 beneath lialf-buried logs and other cover. The black' males appear 

 to be rare, but one having been tat^eii in the Stat(\ 



