442 I' wiii.v XL — STAi'ii ■» i.iMii.i:. 



'Vho one \):\\n'V t i-c;il itii:' of the Xnrtli Aiiici'i<-;m sjiocies of the 

 stibfuvnily is by 



Horn. — "Syii()i)sis of the Genera and Si),'ri("s of tlie Staphyliiiid 

 Tribe Tacliyi)oriiii of the I'liiled Slates." in Trans. Amei'. 

 Ent. Soc. \'l. 1S77. 81-128. 

 The subfamily is separated into five tril)es. and these in turn into 

 genera. 



KK\ TO TRn?ES OF TACHYPORIN.E. 



a. Hind cox:i> tnuisvcrso. rcachins,' the .side pieces of the metathorax. 

 h. An(eiin:i' lO-jniiitcd : larsi 4-.iointe(1. 



Tribe I. Hypocyptini, p. AV2. 

 hh. Anteiuiji' ll-.iointe(l ; tarsi 5-.iointecl. 



c. First .joint of liiiid (arsi nearly as lont; as tihi.-i*; hind eoxje ap- 

 I)arentl.v united with the metasternuni. 



Tribe II. Trichopy'ini, p. 442. 

 cc. First joint of hind Inrsi moderate or short; liind coxae free. 



(I. Head ii.it iii,ii-.L;incd on tlae sides beneath the eyes; elytra dis- 

 tinctly longer than the thorax, niinntely and irrei^nlarly punc- 

 tate. Tribe III. Tachyporini, p. 443. 

 (Id. Head margined on the side beneath the eyes; elytra about as 

 long as thorax, smooth or with three or more rows of punc- 

 tures. Tribe IV. Bolitobiini, p. 452. 

 (/(/. TTind cox;e triangnlai-. itr<aninont: antennjx! ll-.iointed; tarsi r)-.iointed ; 

 head not margined. Tribe V. Habeocerini, p. 457. 



Tribe I. HYPOCYPTINI. 



Very small. l)roadly oval i)ul)escent species, which occur for the 

 most ])art in 1he nesls of aiils. When disturbed they bend the head 

 iindor the body which, toiiv'thcr Avith their convex forms, gives them 

 the ai)pearanc(' of little globes or balls. No re])resentative of the 

 tribe has been taken in tlie State, though Dury has taken Microcyp- 

 lux irsldi-ciis Tjcc. from the iiest of a small black ant near Cincin- 

 nati. It is reddish-yelldw , with the middle coxa^ narrowly sepa- 

 rated; mesosteriMim earituite: length .8 mm. 



If HjKicuplns loHfjiconiis Payk.. lilack. legs and antenna^ pale yel- 

 IdW. middle coxa^ widelv se])arated. inesosternum Hat. length 1 mm.. 

 may ucciir in the siuilheni half ol' llie State. 



Tril)e II. TRICIIOI'YINI. 



Two genera re!)reseii1 this tribe in the Eastern United States, 

 l)oth of wliich occur in the nests of white ants {Termes). Both 

 genera have a southern range and both are perhaps represented in 

 southern Indiana, thdiigh only the single spcM'ies of on(> has as yet 

 been taken. 



