'I'll!'; sii(H!i'-\\ iN(ii':i) sc w i';\(;i':i; ijmktM'IS. 44)5 



KEY TO GKNERA OF TUICITOPYTNI. 



a. B(Mly biMMd. narrowod luMiind. clothod witli loiii;. sparse, hrislly liairs; 

 thorax iiaiTow imI in fiiHit. iii>( iinprossod. LXI. 'I'kk iiopsknius. 



aa. Body iiari-owcr ; thorax imt iiarmwod in front, with an apical impres- 

 sion, llic Itottoni of which is nicniitranoiis. Xknisti'sa. 



TjXI. Triotiopsentfr lloi-ii. I.s77. ('(it-., " liltic liaii- ; like") 



Represeiilcil in soiillicni Indiana and sonlhwafd l)y one small 

 form hnvinii' the lihia' dislindly spiindosc. middle coxa' eoni ioiioiis ; 

 abdomen and elytra not maroined. 



S4S (2G02). Triciiopsenius depuessis Horn, Trans. Ainer, Knt. Soc, VI, 

 1S77, 88. 

 Oblong, depressed. Brownish-yellow, glabrous, very shining and with- 

 out punctures. Thorax nearly twice as wide as long, sides slightly curved, 

 base truncate, hind angles acute. F^lytra each quadrate, as long as broad, 

 together not wider and a little shorter than thorax, and with three trans- 

 verse rows of erect yellowish hairs. Abdomen conical and liearing nnmerous 

 sparse, erect hairs. Leu,gth 1.2 mm. 



CraAvford Coiiniy. ]\ray 1."). Four or five si)eeiniens were taken 

 ill the nests of Tcnnes flavipcs Koll., l)eneath flat stones near the 

 montli of Wyandotte Cave. 



Tribe III. TACHYPORINI. 



Rather short, broad speeies. with a conical abdomen, which is 

 never turned upward when disturbed, as is the habit of most other 

 ?>fapliylinids. 'I'hey occur in funo-i. dunja: and other decaying matter. 



KEY TO INDIANA GENERA OF TACHYPORINI. 



a. Abdomen witli a narrow margin; tibiji' witli a fringe of uneven spinules 

 at tip. 

 b. Mesosternum ntit carinate. 



c. Maxillary palpi filiform ; body oblong, somewhat depressed, mod- 

 erately tapering; length ;)-(J mm. LXII. Tachinus. 

 cc. Maxillary palpi awl-shaped; body short, convex, abruptly tapering; 

 length less than 3 mm. LXIII. Tachyporus. 

 bh. Mesosteraum carinnte: maxillary paljn filiform; front tarsi of male 

 simple. 

 '/. Elytra not extended at sides below tlie bod.v. Cieea. 

 (hi. Elytra pro.iected at the sides below the body. LXIV. Erchomus. 

 Off. Abdomen not margined; surface finely pubescent; tibia' with a fringe 

 of equal spines at ti]). LXV. Conosoma. 



LXTT. Tapiuxi-r Orav. 1802. (Gr.. "swift.") 



A large genus, tlie species of which are very difficult to separate, 

 unless both sexes are present. The males have the front tarsi always 

 dilated and file last or seventh ventral segment deeply divided, form- 



