262 



ifc is dull greenish yellow; and the dorsum of the thorax, especially 

 in fresh specimens, is a lighter gray than in angustipennis, con- 

 trasting much more with the black lateral stripe. The dorsal mar- 

 gin of the hind femur is more distinctly banded than in angusti- 

 pennis. The prozona is slightly narrower behind than in angusti- 

 pennis and the metazona shorter. Apparently these differences re- 

 quire the formation of a new species, which I dedicate to the 

 pioneer in this interesting local field. 



Note 7, p. 235. — Udeopsylla robusta. The common Udeopsylla 

 nigra of eastern Illinois is uniform black or piceous, except for some 

 faint rufous thoracic spots. Examples of Udeopsylla robusta from 

 South Dakota are rufo-testaceous throughout, except for being dark- 

 er in front of the sutures. The male and female taken near Ha- 

 vana are mahogany-brown, darker at the sutures; the face, legs, and 

 ovipositor are rufo-testaceous, about as in the South Dakota speci- 

 mens, but the outer faces of all the femora are indefinitely striped 

 and mottled with the dark mahogany color, not uniformly pale as in 

 typical robusta. The tibiae and tarsi are just as in typical robusta^ 

 while those of nigra are no paler than the dorsum. The Havana 

 pair are clearly not nigra, and for the present may be regarded as 

 a variation of robusta. The eastward range of robusta is thus ex- 

 tended across the Mississippi. That of nigra reaches certainly about 

 to the Indiana line, and probably far beyond it. 



Note 8, p. 235. — Nemobius fasciatus vittatus. As I have elsewhere 

 stated ('06), we may recognize three forms of wing development 

 in Nemobius by adding an intermediate form to the usual macropter- 

 ous and brachypterous types. In the intermediate form the wings 

 are aborted as in the brachypterous form, but the tegmina are long, 

 as in macropterous individuals, the dorsal field at apex ampliate 

 and much exceeding the tip of the lateral field, not truncate. The 

 specimen from the Devil's Neck is of this form. 



Note 9, p. 236. — Nobis elongatus^ n. sp. Length, 10 mm. ; width, 

 2 mm. Elongate, with whitish pubescence, minute and sparse on 

 upper surface, surface yellowish white above, a dusky stripe extend- 

 ing from between the antennae to the tip of the scutellum, broader 

 and darker posteriorly, especially on the scutellum ; hemelytra at- 

 taining the base of genital segment, wings but slightly shorter, 

 hemelytra whitish without fuscous dots, veins of membrane faintly 

 bordered with fuscous on basal part, a dark spot at base of mem- 

 brane on inner margin ; tergum fuscous, darkest medially, becoming 



