212 J. L. LECONTE, M. D. 



black, with a dark reddish yellow spot near the suture. Beneath densely 

 punctured. Hind tibise curved and compressed; tarsi testaceous, hind pair 

 with the first joint as long as the others united, slightly thickened. Length 

 6 mm. 



One 9; Sumter Co., Florida; Mr. E. A. Schwarz. Allied to 

 M. Zeschii, and perhaps the other sex of that species ; it differs 

 however by the form of the hind tibiae and by the vertex being less 

 conical and less prominent, so that in view of the widely distant 

 localities, I am not warranted in considering them as the same. The 

 wings are unusually dark, and the dusky band occupies the whole 

 of the apical third. 



The bibliography is given in my note on the species of this genus, 

 Proc. Acad. Nat. Sc. Phila. 1865, p. 96, and need not here be re- 

 peated. Dorthesia Jiavicornis Say, Journ. Acad. Nat. Sc. Phila. iii, 

 274; Ed. Lee. ii, 162, still remains undetermined. 



M. avxericanus Grueriu, Icon. Regne An. pi. 34, fig. 5, may be one 

 of the darker colored species above described, but the description and 

 figure are not sufficient to identify it with certainty. 



NEMOGIVATHA 111. 



The species are numerous, variable in color, and sometimes difficult 

 to distinguish. Large series of specimens will probably shew the 

 propriety of suppressing some of the species here tabulated, but the 

 material examined does not warrant me in operating any farther 

 reduction at present. Some purists write Ntmatognatha^ but the 

 amplification seems undesirable. The two groups might readily be 

 separated as distinct genera. 



■•■• Palpi ?noderateli/ long, not very slender, hairy. 

 A. — Outer spur of hind tibiae very thick, large, obliquely truncate, inner one 

 smaller and shorter; % last ventral segment cleft, lifth impressed; 9 front 

 tarsi more slender and much more hairy than in the % . 



Prothorax wider behind, rather densely punctured, abdomen shining sparsely 

 punctured, color variable; % fifth ventral feebly impressed; 9 front 

 tarsi with erect short hairs; 8 — 13 mm.; Ks. ; Col.; Or.; Te.x.; Ariz. 



1. liirida Lee. 

 {Type). — Fulvous, tibise, tarsi, antennee, palpi and tips of mandibles dark, 



or black. 

 a, — Antennae, etc., legs and under surface black; ventral segments more 



or less fulvous ; decipiens Lee. 

 /?. — Black, head, prothorax and elytra fulvous. 

 y. — Black, head and prothorax fulvous. 

 Prothorax not wider behind, less densely punctured ; abdomen brown densely 

 punctulate ; color fulvous above, black beneath ; scutel and tips of elytra 

 blackish; % fifth ventral feebly impressed; 10 mm.; Gala.; one pair. 



2. apicalis Lee. 



