'I'll!': sii()i;i'-\vim;i:i» s( a\i;\(;i:i; I!i:i;'I'i,ks. 425 



/>. (tllioidis l.cc. Ii;iviii«; the licad p;i r;i I'd ;il IIh' sides, cnlor deep 

 sliiirni.i;- l)l;irk. h'^s rccldi^li-lirdw ii. :i!i1('iiii;i' dusky; si\11i \-cnlr;d ol" 

 male with a s(|iiarc iiolcli; Icii.iilli .")-."). 4 iiini. Il has hccii takm in 

 New Knirhiiid and Iowa. L. h inn Lcc. \ ri y s!cii(h'i'. with head 

 hroach'st iicai- tlu' base; color siniilai'; sixth \cn1i-al of male scniicii'- 

 culai-h cniariiinalc ; lrn<^th 4. ()-.") luin.. known I'roni Xi'W iMi'^land, 

 Canada and .M ichi,-;an. and probably oi-t'iirs in northern Indiana. 



(Juorr I). (Ti'/iAKTopia s.) 



This <:i-onp is chieHy dislinjiiiislu'd I'roin other soin-ies of Latli- 

 I'ohinin l)y the very narrow nock-. The antenna' arc rather sleiuh'r 

 and tilit'orni aiid the l)od\- is usually more or h'ss fiisiroi-ai rather 

 than. paraHel in outline. The roUowin'-' species have l)een taken or 

 perhaps occur in the State : 



KF.V TO IXDI.VNA SPECIES OF (asoei* D. 



(/. Kl.\tra redilisli. soiuetiiiies cluiuled witli black mi sulure near l)ase. 

 I). Tliorax deep black. 



e. Head parallel oi- enl.v ver.v feebly and jirndually narrowed licbind 

 the eyes; tii(H-a\ str(in,i,'l.\- and c(.arsel.v punclate. the jtinunircs 

 rather dense. si:!. puNCTeEAreM. 



fc. Head very obvicnsly narrowed behind the e.ves in l).:th se.\es. 



iuhku'enne. 

 hi). Tluirax dnll reddish, similar in celcr to elytra. SU. semiiUiier. 



(/(/. Elytra not red. 



(I. El.vtra black with the enter aiiical r.n.Lcles. or s(.nietinies tlie whole 

 apex, more nr less abrniitl.v paie; lentrlh 7-7. S mm. axcjilare. 



ihl. El.vtra and entire bndy l)l;ick. the le.i;s dark; len.ijlh ."l.'S-.j.s nun. 



NIG KIM. 



813 (2512). Lathkomh.m PL-.\eTri..vn'M Lee.. X. Spec. X. Amer. Col., I. 

 1863, 42. 

 Elons^ate. slender. I'dack, shinin.ir: antenn.-e and el.vtra dnll reil, the 

 former dnsky toward apex: h'.u's dnll .M'IIow. Head semicircttlar behind 

 the eyes, tinely and rathi-r sparsely luni'-tale. 'I'hui-.-ix ebl:Ml,^^ sli.i,'litl.v bmirer 

 than wide, distinctly wider than head; sm-face. as well as that of elytra, 

 r.-ither coarsely, not closely pnnctate. the median smoeth line very na.rrow. 

 Elytra one-third wider and distinctly loii,irer than thorax. Al)d aneii as 

 wide as elytra, minutely and densely punctate. Males with the third to 

 fifth ventral segments feebly impressed along the middle, the sixth acutely 

 and deeply notched. Eength 6-7 mm. 



Throui:li(uit the State; scarce. February 2f)-()etol)i'r 17. Oc- 

 curs l)eiu'ath covei in open uplaiul woods. 



L. ruhripenne Casey, (i uiiu. in leiiiith. is said to range from 

 Massachusetts to Iowa. 



