NATHAN BANKS. 249 



C'allibietiw iiioiitaniis Eaton. 



Eaton, Eiv. Mon. Epheraer., p. 196 (1884). 



Yellowish brown, dorsum darker; femora scarcely marked, tarsi and setse 

 hardly annulate. ; basal costal region hyaline; the costa is, however, interrupt- 

 edly white and brown; vitta pale brownish, broader at base, hind edge, regular, 

 with only a few indistinct and narrow indentations; cross-veins brown, about 

 twenty -two beyond vitta, only one posterior series; vitta has only a few small 

 spots on the basal part. 



Length 8 mm.; expanse 19 mm. 



Near Tacubaya, D. F., Mexico (O. W. Barrett). Central 

 America (Eaton). 



4 'allibaetis floridanus n. sp. 



Body uniform ferruginous; femora thickly dotted with brown, tips of tarsal 

 joints brown; setae pale, narrowly annulate with brown; costa of wings un- 

 marked, basal costal region hyaline, vitta pale brownish, broader at base, with 

 about seven or eight small narrow indentations on hind edge, otherwise the edge 

 is very regular, cross-veins in middle of wing brownish, about twenty cross-veins 

 beyond vitta, only one posterior series. 



Length 6 mm. ; expanse 15 mm. 



Biscayne Bay, Florida (Mrs. A. T. Slosson). 



< 'alliba'tis fliicl nan* Walsh. 



Walsh, Proc. Acad. Nat. Sci. Phil., 1862, p. 379. 



Brown ; femora faintly dotted with brown ; tips of tarsal joints brown ; setae 

 narrowly annulate with brown ; vitta of wing yellowish brown, including the 

 basal costal space, broader at base, with only two or three small indentations on 

 hind edge, all beyond the middle, many spots in costal region, about eighteen 

 cross-veins beyond vitta, all brown, only one posterior series. 



Length 7 mm. ; expanse 15.5 mm. 



Washington, D. C. ; Illinois (Walsh). Eaton has placed this as 

 a synonym of C. ferruginea, but they are very different and in 

 different sections of the genus. 



4 :illil»alix <-;i I i fori! M'US n. sp. 



Brown; femora plainly and thickly dotted with brown; tarsal joints tipped 

 with brown; setae narrowly annulate with brown; vitta of wing dark brown, 

 including the basal costal space, with about eight or ten indentations on hind 

 edge, those on basal part quite wide; costal area to beyond middle much marked 

 with pale, not round spots, but short bands from vein to costa; about twenty-two 

 cross-veins beyond vitta, those of middle plainly snow-white, only one posterior 

 series of cross-veins. 



Length 6 mm. : expanse 15 mm. 



Southern California (A. P. Morse). 



Callibretis unclatus Pict. 



Pictet, Ephemer., p. 264 (1845). 



C. pictu8 Eaton, Trans. Ent. Soc. Lond., 1871, p. 122. 

 Brown ; femora thickly spotted with brown, tarsi brown, and usually a spot on 



TKANS. AM. ENT. HOC. XXVI. (32) MAY. 1900. 



