408 IWMII.V XI. — STAI'lIVLlNin.K. 



(/(/. 'I'lmrax vcrv liiicly slriLCiisc. (luitc <i|i;i<|iu'. 



(/. Dr.rsal s('i;iiic'ii(s of abdoiiicn dciiscly iMiiictatc ; Iroiil (ihiiu obliquely 



eiiiar.iriuato on llio outer side: 1«mi;,'11i 1.7 luui. tkiuacarinati's. 



//»/. Dorsal setiuionls suiootli : Irinl tibia- sh-iHler. ti'uncato at tiii; grooves 



of tliorax feeble; length 1..". l.s mni. !»0T. exiguus. 



'.|(|J Ili74;»). OxvTKi.rs stTLPTLS (Jrav.. Mon. Col. Micr.. 1S(IC>, 1!»1. 



Klongate. subdepresserl. IMceous ; logs and base of antenn.-e dull yel- 

 low. Head ,sniall. narrower than thm-ax. finely and densely punctate and 

 with a slight median groove on vertex. Thorax elliptical, angles all rounded; 

 disk rather closely imnctured and with three entire grooves, the sides some- 

 what concave. Elytra slightly wider and one-half longer than thorax, 

 i-atiicr coarsely and roughly punctate. .Vbdomen very linely and densely 

 jiunctate. Seventh ventral of mah> witii two narrow, deep notches, the 

 median loiie broad, truncate. I.englli .■*>.."> 4 nun. 



I\rai'ion County ; .scarce. April 14. 



(). nigosus Ericlr-;.. occurs in Canada. Massachusetts and Penn- 

 sylvania, and ]u"ol)ahly in uorthern Indiana. 



DO.") (2752). ()xvTi:r.is pennsylvanicus Er., Gen. Spec. Staph., 1840, 792. 



Elongate. de])ressc(L Dark reddish-brown to piceous. shining; elytra 

 dull clay yellow; legs and basal .joints of antenn;e paler. Ileatf slightly 

 narrower than thorax, finely and rather closely punctate, the vertex rugose; 

 frontal margin broadly curved and elevated. Thorax three- fourths wider 

 than long, sides rounded into base; disk finely and rather sparsely punc- 

 tate, the median groove distinct, the two outer ones faint. Elytra slightly 

 wider and one-third longer than thorax, finely, sparsely and rugosely i)unc- 

 tate. Abdomen at base narrower than elytra, almost smooth. Male with 

 two slight tubercles on hind mai'gin of seventh ventral and head wider and 

 more quadrate beliind the eyes than in female. Length 3.5-4.5 nun. 



-Marsliall. Putnam and Clark counties; scarce. April 17- 

 •Inne 24. 



'.to I (275.")). OxvTEHS iNsiGNnrs (Jrav., .Aton. Col. Micr., ISOG, 188. 



lllnngatc. subdepressed. Black or piceous, shining; thorax dark red- 

 dish-itrown: elytra and base of antenna' dull yellow; legs paler. Head of 

 nuile wider than tlioi-ax, (luadrate. nearly smooth, strigose each side behind 

 the eyes; of fennile. not as wide as thorax, rounded behind the eyes, sparse- 

 ly and finely punctate. Thorax truncate at apex, front angles almost rect- 

 angular, sides rounded into base; disk rather coarsely and si)arsely punc- 

 tate, with three deep grooves, its sides concave. Elytra slightly wider and 

 distinctly longer (ban thorax, finely and rather closely ])unctate. and finely 

 h.ngitudin.ally rugose. .Middmcn minutely granulate, not imm-tate. r>ength 

 2.5 ,*', nun. 



Tlirouolioul the Stale: rrc(nicn1. -lannary ^-October 4. Oe- 

 cui's ill fiiiioi. hcncatli I)ark and dead leaves. Tlic iiiandil)le.s of the 

 ijiale arc \or\- long, .slender and scytluj-shaped. 



