120 Clarence E. Mickel 
Bicyrtes LePeletier 
KEY TO THE SPECIES 
Females 
1. Posterior coxae strongly dentate beneath (wings smoky)...... fodiens 
Posterior ;coxae® tinarmed: cine. oc eteaevlaecont vee ale See ees 2 
2. Abdomen with a strongly marked pygidial area, the lateral ridges strong; 
LESS PEGEURINIOUS os .cscactee le Torte ae ee EE eRe capnoptera 
Abdomen without a strongly marked pygidial area, the lateral ridge 
feeble, 1f present; wings ‘scarcely smoky i.0.../.... 00% sues ace 3 
3. Mesepisterna marked with yellow; ultimate tergite black; anterior 
Wits: MOL *ClOUAE "s..Jateu Sets Coes Oe oe aoe neon quadrifasciata 
Mesepisterna black; flagellum black; apex of ultimate tergite black, 
ventralis 
Males 
I. Posterior coxae armed with a tooth beneath .................. fodiens 
Posterior /caxaé. unarmed? *..2. 2.2.22 come hee aise Seen eae ee 2 
2. Intermediate femora beneath at the base drawn out into a prominent 
tooth; joints 7-10 of antennae strongly rounded out beneath; cly- 
Meus black. or whittisheatwbaSe) Oxy yy. elm cious eee ventralis 
Intermediate femora not dentate beneath at base, atthe mostangular 3 
3. Legs not ferruginous in part; wings, if dusky, but slightly so; inter- 
mediate femora beneath distinctly keeled, or angular at base, 
quadrifasciata 
Legs ferruginous and yellow; wings dusky; intermediate femora be- 
neath distinctly keeled and angulate at base ............ capnoptera 
Bicyrtes fodiens (Handlirsch). 
1889. Bembidula fodiens Handlirsch, Sits. Akad. Wissensch., Wien, 
XCVIII, p. 497. 
1895. Bembidula fodiens Fox, Proc. Acad. Nat. Sc. Phil., p. 354. 
1917. Bicyrtes fodiens Parker, Proc. U. S. Nat. Mus., LII, p. 60. 
Males 1, females 1: Meadow (1), July, 1903, and Louisville 
(1), July 5, 1915 (E. G. Anderson). 
Bicyrtes ventralis (Say). 
1824. Monedula ventralis Say, Exped. St. Peter’s River, II, p. 336. 
1895. Bembidula ventralis Fox, Proc. Acad. Nat. Sc. Phil., p. 353. 
1917. Bicyrtes ventralis Parker, Proc. U. S. Nat. Mus., LII, p. 62. 
Males 31, females 13: Nebraska City (1), Omaha (8), South 
Bend (3), Lincoln (2), Cedar Bluffs (2), Neligh (1), Carns 
(3), Halsey (1), Mitchell (13), Gordon (1), Glen (8), Monroe 
438 
