THE SHORT-WINGED SCATENOER BEETLES. 425 



L. oilwiihs Lee. having the head parallel at the sides, eolor deep 

 shining black, legs reddish-brown. antenD;e dusky; sixth ventral of 

 male with a square noteh ; length 5-5.J: mm. It has been taken in 

 Xew England and Iowa. L. foiue Lee., very slender, with head 

 broadest near the base ; eolor similar ; sixth ventral of male semicir- 

 eularly emarginate-. length 4.6-5 mm., kno^^^l from Xew England. 

 Canada and ^Michigan, and probably uceurs in northern Indiana. 



Gkoup D. (Tetaktopeus.) 



This gronp is chietly distinguished from oth^r species of Lath- 

 robium by the very narrow ncL-k. The antenna? are rather slender 

 and filiform and the body is usually more or less fusiform rather 

 than parallel in outline. The following species have been taken or 

 perhaps occur in the State : 



KEY TO INDIANA SPELILS OF GEOVP D. 



a. Elytra reddish, sometimes clouded with blnek on suture near liase. 

 6. Thorax deep blacii. 



c. Head parallel or uuly ver.v feebl.v and giaduall.v narrowed Ijehind 

 the e.ves : thorax strcmgl.v and coarsely punctate, the puncture-; 

 rather dense. si:;. pixtrui.vTCM. 



cc. Head very obvkiusly uairuwert liehind the eyes in both sexes. 



KLBKIPEXNE. 



6&. Thorax dull reddish, siuiilav in eolor tu elytra. si4. semikueer. 



aa. Elytra not red. 



d. El.rtra black with the outer ajjical angles, or si.metimes the whole 

 apex, more or less abruinly jiale : length T-7.S mm. axgclake. 



(Id. Elj-tra and entire body black, the less dark ; length ."..o-.'.s mm. 



S13 (2511' I. Lathkobium pu.NcTrL.\TiM Lee, X. t>pec. X. Auiei-. CuL. I, 

 1S63. 42. 



Elongate, slender. Black, shininj: : aiitennie and elytra dull reil. the 

 former dusky toward apex : legs dull .\oIlow. Head semicir'ular behind 

 the eyes, finely and rather sparsely pnu'tate. Thorax oIiIdui:. slightly Inii-er 

 than wide, distinctly wider than bead: surfaee. as well as that of elytra. 

 rather cuarsely, not clcsely punctate, the median smiioth line veiy narrow. 

 Elytra one-third wider and distinctly liiiit,'er than thorax. AbiLiaeu as 

 wide as elyti'a. minutely and den.-^ely punctate. JIales with the third to 

 fifth ventral segnients feebly impressed alou;.' the middle, the sixth acutely 

 and deeply notched. Length i;-7 mm. 



Throughout the State: scarce. February 2H-0ctijber 17. (Oc- 

 curs beneath cover in open upland woods. 



L. nthri prune Casey. <J mm. in length, is said to rauge from 

 :\Iassachusctts to Iowa. 



