251 



Apex of the pygofers in the male nearly circular; their surface below 

 exposed by the strongly angled last ventral segment; stiles hook-shaped, 

 approximate at base then curved outward and upward, their apices twisted 

 and parallel and attaining the anal aperture either side of a ventral arena, 

 tion. Pygofers of the female oblong, oviduct stout, brownish, considerably 

 exceeded by the anal tube. 



This is a very clearly marked and pretty species of which seventeen 

 specimens are now before me, all macropterous. Ocean Co. New Jersey 

 in May, Prof. J. B. Smith; Agricultural College, Mich. G. C. Davis,; Fair- 

 fax and Ames. Iowa, Prof. Herbert 'Jsborn, to whom this species is respect- 

 fully dedicated. Also taken by me at Lancaster, N. Y. in August 1880. 



LIBURNIA LAMINALIS, n. sp. 



Macropterous female: Color bright fulvous yellow ; above marked with 

 a broad brown band behind the eyes which covers the sides of the prono- 

 tum and the basal angles of the scutellum to the lateral carinaj. On the 

 pronotum this brown color may be deepened to black anteriorly within the 

 curve of the lateral carina?. Face brown, varied with paler and clouded 

 with blackish next to the outer margin of the checks, on the base of the 

 clypeus and the base and apex of the front. Color paler beneath becoming 

 soiled whitish on the legs and venter ; mesopleura with a round black spot ; 

 edges of the ventral segments and their stomata brown ; tergum black, the 

 lateral edges and more or less of the apical segment yellowish. Elytra 

 whitish hyaline, the nervures brown, conspicuous, the costal beyond the 

 stigmata heavy and blackish. Anal tube black. Outer edges of the tibia; 

 with a brown line. Oviduct short, not attaining the apex of the pygofers. 



Macropterous male; Colors paler becoming soiled whitish on the pro- 

 notum. The face is more strongly colored or almost blackish and the base 

 of the tergum bears a pale band. Pygofers white with a large black spot 

 on each side ; stiles and anal tube deep black, the former large, projecting 

 and very conspicuous, with the rounded apex rather broad and obtusely 

 angled within. Length about 3^ n^- ™- 



In most of its characters this species agrees very closely with Osborni 

 but the stiles of the male are much larger and more conspicuous and their 

 apex is more extended and oblique, and viewed from below they are less 

 divergent. The female of Osborni has the pronotum immaculate. The 

 basal angles of the scutellum are marked with black in the male only. The 

 front in laminalis is narrower, but very little wider toward the base and 

 distinctly arcuated at the apex of the head between the eyes. In Osborni 

 the front is one half wider than in the present species with the sides quite 

 distinctly arcuated and but slightly contracted at the tip of the head and 

 the mesopleural spot is larger and more diffuse. 



Mississippi. Described from one male and two female examples received 

 from Mr. Howard Ewarts Weed. The females were labeled "Sept. 1892," 



