308 FA:\riLY x. — PSELAPiirr),!-:. 



Sul)raiuily II. PSELAPHlNAE. 



Ill this snbfamily the abdominal seu'ineul^ arc all separate and 

 the antenna:' have 11 (10 in r-ertain species of Bryaxis) joints. 

 Three tribes comprise the snl)family. all of which are represented 

 in the State. 



KEY TO PRIRES OF PSELiVPHIN.T:. 



a. Auteimiu aiiproxiinate at base, inserted beneath prominent horizontal 

 contiguous tubercles. Tribe I. Pselapiiini, p. 308. 



aa. AntenmiR distant, inserted on the sides of the head lieneath short, de- 

 flexed tubercles. 

 h. Hind coxje widely seiiaratcd. transverse, not prominent. 



Tribe II. Brachyglutini, p. 315. 

 bh. Hind coxa? approximate or contiguous, ctmical and prominent. 



Tribe III. Euplectini, p. 3l!S. 



Tribe I. PSELAPHINI. 



Our species of this tribe are always narrowed in front, much 

 broader behind and have the abdomen strongly margined and the 

 hind coxa' wid(^ly sejiarated. Th(^ following genera are probably 

 repj'csented in tlu' Stale: 



key to INDIANA GENERA OF PSEI.APHINI. 



(/. Tarsi with two eipial claws. 



h. Antenna' moniliforin or bead-like, without a distinct club. 



c. Maxillary palpi very small, the basal joints hidden, the last two 



united to form a globular club. Chennium. 



cc. Maxillary pali)i with the last two joints very transverse, fusiform 



and compressed. III. Ceophyllus. 



J>1). Antenna' clavate. the last joint usually gradually larger. 



'/. Last three joints of maxillary paliii bearing bristle-like aiijiendages 

 on the sides. 

 e. Appendages of last three joints of maxillary jialpi short, the 

 joints triangular; abdomen carinate. IV. Tmesiphorus. 



ee. Appendages very long, the last three joints oval-transverse. 



V. PiLOPIUS. 



(hi. Maxilini'v |)al]ii without append.'iges on the sides. 



/. Last twn joints of maxillary pali)i lunate, or half-moon shaped, 

 the terminal one lenger. VI. Cedius. 



ff. Last two jdinis not lunate. 



r/. Last tlii-ee joints of antenn;e forming a club; last joint of max- 

 illary palpi elongate and with a terminal bristle. 



VII. Tyrus. 



t/fl. Last joint of :iiitemi;e very large, rounded: last joint of palpi 



cylindrical, nmnded at tip. VIII. IIamotx s. 



