462 FAMILY XI. ST A PTFYUNI [>.>:. 



Tribe I. OXYTELINI. 



In this tribe the antenna 1 are more or less elbowed; first joint of 

 maxillary palpi short; second ventral without ridges; tarsi in all of 

 our genera but one, three-jointed. The following genera are known 

 to be or are probably represented in th.' State: 



KEY TO INDIANA GENERA OF OXYTELINI. 



(/. Antenna- in jointed; eyes very large; tarsi H-jointed. 



LXXI. MwiALoi's. 

 tin. Antenna' 11-jointed; tarsi .'!-jointed. 



/*. Front tibi;e more or less spinous on outer margin. 



c. Front tibia? with two rows of spines; body subcylindrical ; an- 

 tennae strongly elbowed. LXXII. BLEDIUS. 

 cc. Front tibiae with a single row of spines ; body depressed. 



d. Middle tibiae also with a single row of spines. PLATYSTETHUS. 

 di]. Middle tibite without spines ; middle coxa? not contiguous. 



LXXIII. OXYTELCS. 



bit. Tibhe all pubescent and without spines. 



c. Scutellum not visible. LXXIV. TROGOPIILCEUS. 



cc. Scutellum visible. 



f. Head strongly constricted behind ; body glabrous. 



LXXV. APOCELLUS. 



//'. Head not constricted behind: body pubescent; last joint of max- 

 illary palpi awl-shaped. THINOBIUS. 



LXXI. MEGALOPS Dej. 1838. (Gr.. "big + eye.") 



Short robust species, resembling those of Oxy- 

 in form, having the eyes larger than in 

 Stenus; thorax coarsely and irregularly punc- 

 tured and marked with a few transverse furrows 

 on the sides. (Fig. 166.; 



S92 (2685). MEGALOPS CVELAIVS Grav., Mon. Col. Micr.. 



1SOG, 197. 



Elongate-oblong, robust. Black, shining; elytra 

 with an oblique reddish stripe, extending from hume- 

 (After rus to suture at apex ; legs and antenna reddish-brown, 

 Erichson.) A South Ameri- the latter shorter than head, the last joint very large, 



can species. 



fuscous. Head wider than thorax, coarsely, sparsely 



and rn- isely punctate. Thorax subcyliudrical. as wide as long; disk with 

 a number of large tubercles in addition to the coarse punctures. Elytra 

 one-third wider and slightly shorter than thorax, very coarsely, roughly 

 and irregularly punctate. Abdomen slightly narrower than elytra, almost 

 smooth. Length 4-4.5 mm. 



Posey County; r;ire. May 7. Occurs beneath bark of fungus 

 covered beech logs. 



