OCR Text |
Show 182 PROF. P. R. UHLER ON THE [Mar. 6, LYG^EID M. NYSIUS, Dallas. 1. NYSIUS PROVIDUS, sp. nov. Oblong, narrow; greyish yellow, the upper surface more or less clouded with fuscous, greyish pubescent. Head long, nearly as wide between the front of the eyes as the width of the apex of pronotum; the surface closely pubescent, marked along the middle with a slender, yellow, feebly raised line; the surface between the eyes granulated* the granules each side of middle arranged in lines, punctures few, indistinct ; the tylus pale fulvous anteriorly, bounded each side at base by a small knob placed next a dark band ; middle of gula, including the bucculae, blackish piceous; rostrum slender, fusco-piceous or tinged with fuscous, reaching between the posterior coxae ; antennae dull testaceous, the base and inner side of basal joint, base and apex of second, and base of fourth joint blackish. Pronotum longer than wide, obscurely bilobed, impressed and rather abruptly sinuated on the sides behind the anterior lobe ; the surface transversely wrinkled, unevenly punctate with piceous, less so on the anterior lobe, the apical border black; the surface before the humerus spread with a blackish spot, which includes the knob-like angle, but leaves a yellow spot next thereto ; the lateral margin obsoletely carinate, indented before the anterior angle, the middle with a pale yellow, slender line ; posterior margin a little arched, sometimes bordered with black, having the posthumeral border depressed, expanded, and pale yellow. Mesosternum black in the middle, with the costal segment and the coxa tipped with brown ; the anterior and posterior coxae mostly testaceous. Legs testaceous, the femora banded with concurrent dark brown spots ; the tibiae piceous at base and tip, and the tarsi piceous, excepting the testaceous base. Scutellum obsoletely punctate, with a dark, transverse, sublunate callosity, having a blackish cavity in front of it at base, the apical division paler, acutely carinate at tip. Hemelytra dull whitish or testaceous, punctate with fuscous, finely pubescent, acutely prolonged, with the cuneus rufous; the costal area narrow, pale testaceous, with a few brown points, the veins interrupted with brown ; membrane semitransparent, with the veins more or less brownish. Venter rufo-testaceous, more or less sprinkled with darker brown ; the ovipositor blackish. Length to tip of venter 3|-5 m m . ; width of pronotum 1-1 \ m m . This is the common and widely distributed species which has hitherto been wrongly referred to N. scolopax, Say. The true N. scolopax has a rostrum which reaches to the middle of the venter, which is not the case in the species here described. Our species inhabits North America from Quebec to Arizona, from thence it spreads into Mexico and Central America, and following south it is found on the Isthmus of Panama, and in Colombia and Northern Brazil. In the West Indies it occurs in Trinidad, Grenada, |