L62 FAMILY IT. CATiABIlU':. 



ris to have the abdomen and antenna? fuscous. In the LeConte 

 collection at Cambridge the single example labeled minutus is simi- 

 lar to the Indiana specimens, as is also the type of pumilio bearing 

 that label and placed at the side of the other specimen. If a com- 

 parison with the Harris type shows the two to be different the name 

 pumilio will stand. 



291 (963). BRACHYNUS JANTHINIPENNIS Dej., Spec. V, 1829, 412. 



Elytra dark blue, often with a faint greenish tinge ; antennae, legs and 

 entire under surface reddish-yellow. Thorax slightly longer than wide, 

 hind angles prominent; surface not punctate, faintly, transversely strigose. 

 Elytra parallel, the costee evident. Length 6.5-7 mm. 



Northern half of State ; frequent along the shores of lakes. May 

 20-August 8. 



292 (972). BBACHYNUS LATKKALIS Dej., Spec. V, 1829, 426. 



Apical half of antennae dusky ; legs, except the knees, pale yellow ; ely- 

 tra dull blackish-blue with pale lateral margin. Thorax less narrowed be- 

 hind than in allied forms, hind angles acute, but slightly prominent; elytral 

 costee obsolete, the humeri distinct. Length 8-9.5 nun. 



A species of southern range, known from Indiana by a single 

 specimen taken in Posey County. April 10. 



293 (967). BEACHYNUS MEDIUS Harr., New Eug. Far., VII, 1828, 117. 

 Antennae fuscous ; abdomen dark brown. Thorax as long as wide, the 



front margin concave, the front angles deflexed and obtusely rounded. Ely- 

 tra slightly wider behind, the humeri rounded but distinct, the costse evi- 

 dent but faint. Length 4.5-5.5 mm. 



Vigo County ; rare. April 24. Our smallest species. 



Tribe II. CHLJKNIINI. 



Antenna? slender, arising from beneath a slight frontal ridge, 

 the three basal joints glabrous. Head not narrowed behind the 

 eyes to a neck ; labrum transverse, truncate or emarginate ; clypeus 

 more or less prolonged between the mandibles which are feebly 

 curved and without a seta on outer side; mentum broad, usually 

 emarginate and toothed. Thorax variable in form, the setae of the 

 margin either slender or wanting. Body not pedunculate, scutel- 

 lum distinct. Elytra margined at base, sides narrowly inflexed, 

 surface striate without dorsal punctures. Prosternum not pro- 

 longed ; hind coxas contiguous. Tarsi slender, claws simple. Males 

 with three or four joints of front tarsi dilated and densely spongy 

 beneath. The tribe is represented in the United States fauna by 

 seven genera, six of which occur in Indiana. 



