318 FAMILY X. PSELAPHID^. 



Antennae with second joint small, oval ; third and fourth smaller, obeonical ; 

 joints 5-8 larger, subglobular, equal ; ninth to eleventh transverse, forming 

 in male a densely pubescent club, three times as thick as eighth joint and 

 as Icng as the five preceding together; in female the club is smaller, less 

 pubescent and the preceding joints equal and cylindrical. Thorax sub- 

 globular, the basal groove sharply defined. Elytra each with a discal 

 groove on basal two-thirds. Front trochanters with a slender spine. Length 

 1.8 mm. (Fig. 149, d.) 



Lake, Steuben, and Starke counties; scarce. I\Iay 25-Jtme 16. 

 Brachyglata ahdominalis Aube, red-bro^vn, pubescence very fine, 

 length 2 mm., has been taken near Cincinnati. 



XII. Bry.vxis Leach. 1S17. (Gr., "to swarm.") 



In this genus the thoracic iorere. are not connected by a groove. 

 The following probably occur within the State : 



KEY TO II^DIA^'A SPECIES OF BETAXIS. 



a. Median basal fovea of thorax smaller than those on sides; last three 

 joints of male antennae contorted. 

 6. Thorax as long as wide, convex; first dorsal of abdomen without 

 carinae. pekpoxctata. 



66. Thorax wider than long, less convex; abdominal carinse present, in- 

 cluding between them two-fifths of the width of segment. 



605. CAVICOBXIS. 



aa. Thorax with three large, equal pubescent fovere; sexual marks on the 



abdominal segments of male, the antennae not modified. 



c. Fovese of occiput open toward the eyes, or very near them ; thorax 



finely punctate; male with first dorsal segment acutely bilobed; 



length 1.7 mm. 606. n.i.ixoiE^:sis. 



cc. Foven? of occiput distant from the eyes ; thorax not punctate : 



black, legs, antennse and palpi dusky yellow ; length 1.3 mm. 



PEBFOEATA. 



B. perpunctafa Brend., brown, punctate, sparsely pubescent, 

 length 1.8 mm., is knowoi from Illinois. 



605 (1927). Bbtaxis CA^^coBN^s Brend.. Proc. Ent. Soc. Phil., YII, 1866. 

 194. 

 Elongate-oval. Fuscous-brown, clothed with long, recumbent pubes- 

 cence; elytra and legs reddish-brown; antenna; dark red. last four joints 

 fuscous. Head six-sided, fovere large. AnteuniE longer than head and 

 thorax, the last three joints in male each differin.g in form, ninth wedge- 

 shaped, tenth screw-shaped, eleventh kidney-shaped. Thorax wider than 

 long, finely punctate, the basal foveae all visible from above. Elytra finely 

 and sparsely punctulate ; discal lines straight converging. Length 2 mm. 



Putnam and Posey counties ; rare. September '28-October 10, 



