I'.M I \ AlTKAl. SCIENCES OK I'lIlLADKI.l'Ill A. oS3 



til)i;i\ l)Ut ill niln^nns the tarsi arc ilark hrowii. coiicohji-ous with 

 the tilii:.'. 



Trilic Eriopterini. 



Genus ERIOPTERA M.in.h. 



18(«. Erioptera Mcigen; lUigcr's Magaz., vol. 2, p. 2()2. 



Subgenus MESOCYPHONA Ostcn Snckun. 

 1SH!». Mesoryphoiin Osten Sackon; Moii. Dip!. N. Am., vol. I, p. l.',_'. 

 Erioptera iMesocyphona) rubia sp. n. 



Dark tjrownish l)lack; wings dark brown witli white spots and a 

 white cross-baud at the cord. 



Female, length, 4 mm.; wing, 4.2 nun. 



Rcstrum, palpi and antenna^ black, Ihigcllar segments rounded 

 oval. Head black. 



Thoracic dorsnm dark brownish black with a sparse brown bloom, 

 the area darker in front of the pseudosutural fovea'. Pleura; dark 

 brown with a sparse gray bloom. Halteres yellow, the knobs a 

 little darker. Legs, coxje and trochanters very dark brown, femora 

 dark brownish black, greatly enlarged at the tip, tibiic dark brown, 

 the tip darker, tarsi with the basal half of the metatarsi dull brownish 

 yellow, remainder of the feet dark brown. Wings dark brown with 

 white marks as follows: a large rounded spot at .Sc,., a smaller rounded 

 spot near the tip of 2d A, a broad white band at the cord entirely 

 traversing the w'ings, tip of the wing white including the ends of cells 

 /?3. Ri and parts of R, and .1/,; it is probable that the base of the 

 wing is also white, but this is not certain; veins dark bro\ra except 

 in the white markings, where they are china-white and difficult to 

 detect; venation (PI. XXM, fig. 12). 



Abdomen dark brownish l)lack, valves of the ovipositor brownish 

 yellow. 



Holotype, 9, Chiricahui Mts., Cochi.se Co.. .\riz., June 24 (H. G. 

 Hubbard). 



Erioptera (tfesocyphona) immaculata -Ucxauder. 



VJV.i. EriopUm (Monjci/piiunii) immaculata Alexander; Proceedings of the 

 I'nited Stales National Museum, vol. 44, pp. .518, 519, pi. 66, fig. 20. 



One female from Denison, Gray.son Co.. Tex., June 22. 19U4. 

 taken by :Mr. H. S. Barber. 

 Erioptera (Mesocyphona) eiseni Alexander. 



1013. Enitptim fMi^ocyphona) eiseni .\lexander; Proceedings of the 

 United States National Museum, vol. 44, pp. .516, .517, pi. 67, fig. 26. 



One male collected at La Cueva, Organ Mt^.. Donna .\na Co., 

 JC. Mex., alt.. 5,300 feet, on September 1. by Prof. C. H. T. Townseud. 



