462 



FAMILY XT. STAPH YLINIDiE. 



Tribe I. OXYTELINI. 



In this tribe the antennae 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 the State : 



KEY TO INDIANA GENERA OF OXYTELINI. 



(/. Antennae 10-jointed; eyes very large; tarsi 5-jointed. 



LXXI. Megalops. 



aa. Antennae 11-jointed; tarsi 3- jointed. 



b. Front tibia- more or less spinous on outer margin. 



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

 tenna? strongly elbowed. LXXII. Bledius. 

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



d. Middle tibia? also with a single row of spines. Platystethus. 

 dd. Middle tibiae without spines ; middle coxae not contiguous. 



LXXIII. Oxytelits. 



lib. Tibia? all pubescent and without spines. 



e. Scutellum not visible. LXXIY. Trogophlceus. 



ce. Scutellum visible. 



f. Head strongly constricted behind ; body glabrous. 



LXXY. Apocellis. 



ff. Head not constricted behind ; body pubescent ; last joint of max- 

 illary palpi awl-shaped. Thinobius. 



LXXI. Megalops Bej. 1833. (Gi\, "big + eye.") 



Short robust species, resembling those of Oxy- 

 porus 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.) 



892 (2685). Megalops c.elatus Grav.. Mon. Col. Micr.. 

 1806, 197. 



Elongate-oblong, robust. Black, shining; elytra 

 with an oblique reddish stripe, extending from huine- 



Fig. 166. Megalom cepha- , , , . , 



lotes Erichs. x 8. (After 1 us to suture at apex ; legs and antennae reddish-brown. 

 Secies. A S ° Uth Ameri " the latter shorter than head, the last joint very large. 



fuscous, Head wider than thorax, coarsely, sparsely 

 and rugosely punctate. Thorax subcylindrical, 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-A.o mm. 



Posey County; rare. May 7. Occurs beneath bark of fungus 

 covered beech los:s. 



