1913.] 



NATURAL SCIENCES OF PHILADELPHIA. 



469 



Described from an unspecified series of specimens from northern 

 Indiana. 



Single type here designated: 9 ; Fulton County, Indiana. 

 October 5, 1898. (Blatchley.) [Blatchley Collection]. 



Descriptioji of Type. — Size very small and form slender for the 

 genus, head small, but full and rounded, wider than the cephalic 

 width of the pronotum. Maxillary palpi of 

 much the same form as in N.fasciatus, but with 

 segments not as much produced. Eyes broad- 

 ovate, not prominent. Pronotum^^ of much 

 the same proportions as in fasciatus, but of 

 smaller relative size to the rest of the body. 

 Tegmina very shghtly more than half as long 

 as the caudal femora; apex at humeral angle, 

 very broadly and roundly obtuse-angulate; 

 distal margin of dorsal field very slightly 

 oblique, very broadly arcuato-truncate ; sutural 

 margin passes into distal margin with a dis- 

 tinct but broadly rounded angulation at an 

 angle of slightly more than ninety degrees; 

 intermediate channel not- conspicuously de- 

 pressed and forming part of the dorsal field, this field unusually 

 evenly rounded; longitudinal veins very conspicuous, cross-veinlets 

 very few and extremely obscure. Wings absent. Ovipositor about 

 two-thirds as long as caudal femora, distinctly though feebly 

 arcuate; apex of same narrowly sublanceolate, with that portion 

 formed by the dorsal valves armed, the upper margin serrulate, 



Fig. 25. — iV e m obi us 

 palnstris. D o x- s a 1 

 view of type, female. 

 (X 3.) 



Fig. 26. — Nemobiusjpalustris. Ovipositor. (Greatly magnified.) 



these serrulations regular, minute, sharp, as closely arranged as in 

 N. cuhensis. Caudal femora with greatest (meso-cephalic) width 

 contained slightl}^ more than three times in the length. Spines of 

 caudal tibiae considerably more slender than in fasciatus and supplied 

 with fewer hairs. 



^^ The series of the present species before us shows that though the majority 

 have the pronotum narrowing very slightly cephalad, some few have the cephalic 

 and caudal width of the same subequal, while in other specimens the pronotum 

 narrows decidedly cephalad. 



