412 FAMILY XI. — LYGJEIDM. 



inflated hind lobe ; scutellum elongate-triangular, sparsely punc- 

 tate ; front femora elongate, moderately swollen, armed beneath 

 with two rows of teeth, those in outer row the larger ; front 

 tibiae of male curved at base, armed near middle with a strong 

 tooth. Three species are known, two occurring in the eastern 

 states. 



KEY TO EASTERN" SPECIES OF CXEMODUS. 



a. Femora and tibia? not hirsute with long hairs, or the femora some- 

 times with a few scattered ones. 

 b. Beak reaching middle coxae; front lobe of pronotum at middle but 

 little wider than hind one. 358. mavortius. 



bb. Beak reaching front coxae; front lobe of pronotum at middle much 

 wider than hind one. 358a. var. inflatus. 



aa. Femora and tibiae all thickly hirsute with long erect hairs. 



359. hirtipes. 



358 (566). Cnemodus mavortius (Say), 1832, 19; I, 337. 



Elongate. Black or piceous-black, the pronotum shining; elytra 

 piceous, the costal margin slightly paler; antennae reddish-brown, the 

 fourth joint and apex of third brownish; legs pale brownish-yellow. 

 Elytra dimorphic, membrane in brachypterous form not exceeding apex 

 of corium, scarcely reaching fifth dorsal ; in macropterous form larger, 

 reaching tip of abdomen. Structural characters as above given. Length, 

 8 — 9 mm. 



Frequent in southern Indiana, not taken north of Vigo 

 County. Occurs throughout the year, hibernating in pairs be- 

 neath half buried logs in dense moist woodland, and in spring 

 and summer found beneath dead leaves on wooded slopes of 

 streams. Ranges from New England west to Missouri and 

 southwest to Florida and Texas, the southern records probably 

 to be referred to the two forms below described. Uhler records 

 it as common in Maryland beneath stones and rubbish from 

 March to November and states that it "varies much in the 

 breadth of its outline, and has the hemelytra and wings of at 

 least three dimensions." 



358a (567). Cnemodus mavortius inflatus Van Duzee, 1915, 109. 



This appears to be only a variety of mavortius, as in specimens at 

 hand the beak varies somewhat in length and the pronotum in width. 

 There are no other structural differences than those mentioned in key. 



Vigo Co., Ind., Sept. 29. Bigelow, Mo., Aug. 28 (Barber). 

 Described from North Carolina and not elsewhere recorded. 



359 ( — ). Cnemodus hirtipes Blatchley, 1924, 90. 



Smaller and more slender than typical mavortius. Color the same, 



