TRIBE III. — CORISCINI. 269 



either 2 or 3, which are subequal, 4 shortest, stouter, fusiform ; 

 pronotum as wide at base as long, sides straight, entire, con- 

 verging from the acute humeri to apex, hind margin sinuate 

 and with a small median tooth ; corium with apex as in Tollius; 

 abdomen slightly dilated at middle, connexivum narrowly ex- 

 posed ; membrane equalling or slightly passing tip of abdomen, 

 its veins few, simple ; hind femora clavate, surpassing abdomen, 

 armed beneath with two rows of small curved spines ; hind 

 tibiae longer than femora, armed with two rows of spines, those 

 of the inner row longer than those of femora. Genital plate of 

 male scoop-shaped, emarginate at tip, the claspers concealed. 

 One species is known. 



198 (330). Stachyocnemus apicalis (Dallas), 1852, 479. 



Elongate-oblong, depressed above, convex beneath, the upper sur- 

 face, legs and antennae clothed with nu- 

 merous erect hairs and grayish or reddish- 

 brown pubescence. Above grayish-yellow or 

 piceous-brown tinged with reddish; prono- 

 tum with a large brown or piceous triangle 

 on base, this extended forward to apex by 

 a narrow median line; connexivum piceous, 

 the upper front angle of each segment with 

 a yellow spot, or grayish-yellow mottled 

 with fuscous ; antennae grayish- or reddish- 

 brown, the apical joint darker; under sur- 

 face and femora varying from pale gray- 

 ish sprinkled with fuscous dots to almost 

 wholly piceous; tibiae and tarsi brownish- 

 Fig. 56, x 4. (After Fracker). yellow, more or less tinged with fuscous. 

 Structural characters as under generic heading. Length, 7.5 — 8 mm. ; 

 width, 2—2.5 mm. (Fig. 56). 



Hessville, Lake Co., Ind., Sept. 22 {Gerhard). Dunedin, Fla., 

 one specimen, Dec. 15 {W.S.B.). Raleigh, N. Car., Oct. 10 

 (Brimley). Ranges from New York and New Jersey west and 

 south across the United States. The types of Dallas were from 

 St. John's Bluff, Fla., and it is recorded by Van Duzee from St. 

 Petersburg and Estero, that State. Occurs apparently only 

 in sandy regions, where, at times, it may be found in numbers 

 running over the ground like a Cicindela. Vestal (1913, 29) 

 says that it is common in the basin of small sand blowouts in 

 northwestern Illinois, June — October, being one of the few 

 characteristic basin insects of that region. The North Carolina 

 specimen is brachypterous, the membrane reaching only to 



