Tino iMKKKi.iis oi; i.i(;iri'yi\(; i!i:(is. 821 



.M;ii'sli;ill ;iii(l Oi'jiMii'c coiiiirK's: riirc. Mny L'S .liiiic 10. A s|)(>- 

 cics (if wide (list rihiit idii. hiil I'vci'ywlicrc iiiiicli li'ss coiiiiiion lluiii 

 a)i<iiilfii«t. 



ir)i;i (4S1'(;). r^ u.m klmkna mcukka Mclsli.. I'rdc. I'liil. Acnd. Xal. Sci.. 

 11. is-ir.. ;;()4. 



lOiousatc. iiarrnw. pai-allci. ( "dlors as in innnddla oxccpt thai I lie diisl^y 

 spot oil iiiaririns ol' ilmrax is iinn'o (lislind, aiul occMirs only on middle lliird 

 of tlic niaiirin. Yellow iiiaririu of elytra niiich narrower and more parallel 

 tlian in uni/iihihi. Male with \'(^ntral sesmtMds 1-4 iiiceous. seventh with 

 a pi<-enns spill ; rcuialc willi lil'lli and sixth also piceons at nnddle. Lonsl h 

 s I I nun. 



I>ak(' and !\(Kciiisk() fduiil ics ; s'-ai'-c. .Iiiiie ;)-.luiu' 24. Prob- 

 ably I bfoudbiMit the iiorllicrti ball' of State. 



XT. I'lioi'ixrs Lap. l.s:^:i. ((Jr.. "sbiuiny.") 



Ilddd-Iikc tboi'ax not at all c-ai'iiialc. usually slitibtly oroovcd 

 aud more obtusely rounded in fVout. "^I'bc lio-lit orsfans are always 

 the larger in the inale, \vh(M-e they oeeupy all the ventral segments 

 behind the third or fourth and are accompanied l)y stigmatie pores 

 on the tii'th and sixth segments. In the t'emah' they occur on the 

 middle part of the \entra! segments, but the stigma-like impres- 

 sions are barely or not visil)le. Five have been taken in Indiana, 

 while one other perlians oeeui'S. 



KKY TO TNDIANA SPECUOS OF PHOTIISU'S. 



a. Fourtli ventral sesinient dark. 



J>. Thorax with a hlack stripe and two roseate spots; elytra with wide 



side niar.L'ins. 1562. eoNSANGiiXEis. 



hit. Thorax with a dusky cloud or hlack spot: el.vtra witli narrow side 



niar.Lcins : t'orni more nari'ow. 



r. Thorax with hind anjiles acute, somewhat produced, its disk 



smooth, margins punctate. I.'id:'.. ahuk.ns. 



cc. Thorax witli liind .angles noj produced, its disk tiuely. niariiins 



densely and rather coarsely, punct.ite. nwerui^vrrs. 



(/(/. l'"ourth ventral segmejit i)ale. at least in iiarl. 



'/. I-arge species (0 nv more nnn. i : disk of Ihor.ax roseate with a larsje 

 black spot: ventral iniprcssiuns (.f male \'ci'y distinct. 



1.")(;4. rvnAi.is. 

 '/'/. Small sjjecies tless (lian s nnii. i : NciUral impressions of male ohsn- 

 lete. 

 r. Elytra pale, widely margined: female with lon.u el.vtra and winus. 



tnOf). MAUOIMI.I.IS. 



cr. Elytra dusky with pale marcjiins, narrowly majvirined : Temale with- 

 out winjis. (4ytra short, w idel.v separated at suture. 



ir>('>(;. S( IXTII.nANS. 



