DIPTERA OF BAJA CALIFORNIA. 619 



Baja California (Eisen). One female. The face is more 

 silvery and not so yellowish as in northern (Michigan) 

 specimens. 



El Taste, Baja Cahfornia. Two females and two 

 males. 



57. JuRiNiA LATERALIS Mcq. San Jose del Cabo 

 (Eisen), and San Esteban (Haines, April), Baja Califor- 

 nia. One 6 from each locality I am inclined to refer to 

 this species. 



58. MiCROPALPUs sp.? El Taste, Baja California 

 (Eisen). September. Two?. These greatly resemble 

 Echinomyia thomsoni W\\\., but the eyes are hairy and 

 third antennal joint is much longer than second. Length, 

 9—10 mm. 



59. Phasiopteryx bilimeki B. & B. San Julio and 

 San Esteban, Baja California (Haines). April. One? 

 from each locality I refer doubtfully to this species. But 

 the neuration is not as in v. d. Wulp's figure (Biol C- 

 A., Dipt., ii, pi. 4, fig. 12), the second vein being much 

 longer and nearly parallel with the costa, and the costa 

 being bulged basally somewhat approaching the form of 

 the male wing. 



MUSCID^E. 



60. CoMPSoMYiA macellaria Fab. San Jose del 

 Cabo and El Taste, Baja California (Eisen). Numerous 

 specimens, normal. San Julio, Baja Cahfornia (Haines). 

 April. One female of bluish tint. 



Margarita Island, Baja California (Haines). March. 

 One ? , normal. 



OSCINID^. 



61. OSCINIS COLLUSOR n. sp. 



San Jose del Cabo, Baja California (Eisen). Seven 

 specimens. 



