LIBURNIA LUTULENTA, n. sp. 

 \'an Duzee, Bui. Buf. Soc. Nat. Sci., V, p. 191, 1894. 

 I'rachypterous form ; I )ull testaceous brown, more or less obscured on 

 the pro- and mesonotum, elytra, and edges of the pectoral pieces, especially 

 in the male; postpectus with a large fuscous spot; facial carina; brown- 

 margined; abdomen darker, in the male tioged with rufous, the segments 

 edged with fuscous; femora obscurely lineated with brown; tip of the tarsi 

 and rostrum blackish; antennal seUu black. 



Vertex quadrate, feebly rounded before, carina? obtuse, evanescent on 

 the forehead, fovse each with a round impressed dot. Front rather broad, 

 narrowed between the eyes and more feebly toward the truncated apex. 

 Pronotum shorter than in lineatipes and rounded anteriorly, not apparently 

 squared as in that species. Fork of the outer sector of the elytra about 

 twice the length of that of the inner. Pygofers of the male short, aperture 

 subtnangular, the sides rounded, hardly notched above, ventral notch fee- 

 ble; stiles narrow, claw-like, approximate at base, slightly divergent above 

 and acute at apex. In the female the genital pieces differ from those of 

 lineatipes only in being proportionately a little narrower throughout. 

 Length 2 m. m. 



New York. Described from six male and eight female examples, taken 

 at Buffalo, May 4th to July 10th and Portage Falls, May 30th. 



This insect approaches L.obscurella, Boh. but it is only about one half 

 the size of that species and the form of the front and the characters of the 

 male genitalia are quite different. It is also allied to L. lineatipes. It is 

 not uncommon in spring on grass in damp situations. 



LIBURNIA WEEDI, n. sp. 

 Macropterous male: Form rather broad and stout. Color soiled 

 brownish testaceous, a little darker on the front and scutellum. Eyes, 

 ocelli and abdomen black, the hind angle of each segment of the latter 

 yellow. Elytra twice the length of the abdomen, whitish hyaline with 

 heavy brown nervures. Genital segment long, aperture nearly round but 

 forming a small notch below; stiles concentric with the outer rim of the 

 aperture, widened and slightly bifurcated above. The genital characters 

 are very obscure in this specimen and are not satisfactorily made out here. 

 Length about 3^ m. m. 



Mississippi. Described from a single male example received from Mr. 

 Howard Ewarts Weed. This is an obscurely marked species but quite 

 distinct from any other known to me. It has much the color and general 

 aspect of the smaller northern lutulenta. 



LIBURNIA OBSCURELLA, (Boh.) 



Delphax obscurella, Bohem., Vet. Akad. Hand 1 ., 1847, P- 53- 



Stal, Of. Vet. Akad. Forh., XI, p. 195, 1S54. 



Fieb., Verh. der Zool. Bot. Ges. Wien, XVI, tab. VIII, fig. 20 

 1866. 



Mayr, Tabellen, I, p. 21, 1SS4. (mention) 



