25° 



California and Colorado. Described from three males from near Los 

 Angeles, Calif, received from Mr. D. W. Coquillett under the name of 

 Delphax consimilis, 1'hler, M. S. and one pair taken in the mountains of 

 north west Colorado by Prof. C. P. Gillette. 



LIBURNIA, PUELLA, n. sp. 



Van Duzee, Bui. Buf. Soc. Nat. Sci., V, p. ngr, 1894. 



Aspect of the male of L. pellucida but smaller with a double piceous 

 mark at the tip of the clavus. 



Macropterous form. Male: Black ; carinas of the head and the poste- 

 rior half of the pronotum white; tip of the scutellum, broad margins of the 

 propleuras, antennae, legs, connexivum and narrow margins of the ventral 

 ments, yellowish testaceous, the latter sometimes white. Elytra pellucid 

 white, tip of the clavus and the marginal nervure of the membrane blackish ; 

 discal nervures pale brown, finely granulated. 



Vertex longer and narrower than in pellucida; front narrower, the 

 sides parallel below the eyes where the width is hardly greater than at the 

 center of the eye. Aperture of the pygofers almost circular, a little arcu- 

 ated below; stiles widened and converging above, the outer angles extended 

 upward and backward toward the anal aperture. Length 2|£ m. m. 



In the female the yellowish markings are more extended, the front is 

 slightly widened toward the clypeus with its carina? yellowish instead of 

 white; the pronotum is black with the carina; and narrow posterior margin 

 pale yellow, otherwise like the male. Pygofers long and narrow, parallel ; 

 plates narrow, arcuated within, covering the pygofers to the base of the 

 broad oviduct. Length 3 m. m. 



New York, New Jersey, Mississippi, Iowa. Described from numerous 

 individuals of both sexes. About Buffalo this species is rare but it becomes 

 more abundant southwardly where it seems to replace pellucida. 



LIBURNIA OSBORNI, 11. sp. 

 Van Duzee, Bui. Buf. Soc Nat. Sci., V, p. 191, 1894. 



Macropterous form. Resembles L. ornata, Stal in form and size. 

 Color soiled whitish tinged with yellow beneath; scutellum bright fulvous. 

 Elytra white, subhyaline, nervures pale at base, becoming fuscous at apex. 

 Wings white with slender brown nervures. Eyes, ocelli and tips of the 

 tarsi and rostrum black. Length 3 to 4 m. m. 



The male has a conspicuous oblong longitudinal black spot within the 

 basal angles of the scutellum and a whitish median carina. The disc of the 

 pleural pieces and the abdomen, its margins and a part of the basal and 

 genital segments excepted, are also black, and the front has a darker bor- 

 der within the lateral carina-. In the female the color of the abdomen and 

 breast is bright fulvous like the scutellum and sometimes the metaqotum 

 and disc of the tergum is blackish 



