206 ENTOMOI,OGICAL NEWS. [May, '15 



Holotype — $ , Alamogordo, New Mexico, May 7, 1902. 

 Type No. 6084. 



Allotype — 9 , topotypic, April 20, 1902. 



Paratypes — 7 9 , topotypic, April 23 to May i, 1902. 



Pseudogeron bivittata sp. nov. 



$, Black; halteres, margins of dorsal and ventral abdominal seg- 

 ments, knees and basal veins of wings yellow. Entirely opake, densely 

 cinereous, sparingly white pilose which is more abundant on abdomen. 

 Frons and face silvery; mesonotum with a median pair of narrow 

 brown stripes, abbreviated posteriorly. 



Proboscis as long as thorax; palpi one-fourth as long. First and 

 second antenna! joints subequal; third, twice as long as first and sec- 

 ond, three times as long as broad, with greatest width at middle. 

 Second vein ending slightly before middle of submarginal; small c, v. 

 before middle of discal cell and far beyond basal c. v.; post. c. v. 

 straight. 



9, Proboscis shorter and palpi longer in proportion. Third anten- 

 nal joint shorter. Length, $,9, 3-0-3-5 nxm- 



Holotype — $ , El Paso, Texas, April 5, 1902. Type No. 

 6085. 



Allotype — 9 , topotypic. 



Pseudogeron knabi sp. nov. 



$, Black; base of palpi, halteres, margins of abdominal segments, 

 knees, basal veins of wings, costa as far as end of auxiliary and entire 

 first vein yellow. Moderately white pilose, pile long on head and ab- 

 domen. Densely cinereous; frons and face silvery; mesonotum black- 

 ish, with faint darker sublateral presutural spots. 



Face bare above. Proboscis twice as long as head ; palpi slightly 

 more than one-fourth as long. First antennal joint hardly longer than 

 second ; third three times as long as first, two and one-half times as 

 long as broad with its greatest width at or beyond middle. Second 

 vein at middle of second submarginal ; latter two and one-half times 

 as long as broad; small c. v. before middle of discal cell and beyond 

 basal c. v.; post. c. v. straight. 



9, Anterior half of frons, face, first antennal joint, base of palpi, 

 prothorax, humeri, lateral mesonotal margins more or less, scutellum, 

 abdomen except bases of segments, apices of femora and all tibiae yel- 

 low; halteres white. Proboscis longer in male. Length, $, 9, 3.0 

 mm, 



Holotype — $, Las Cnices, New Mexico, October 5, 1895 

 (T. D. A. Cockerell), [U. S. N. M. Type No. 19222.] 



