54 Prof. Charles P. Alexander on « 



the vertex. Vertical tubercle broad and conspicuous but not bifid. 

 Antennae with the scape obscure yellow ; flagellum broken. 



The thorax of the century- old type now appears almost uniformly 

 dark brown but the three praescutal stripes are indicated. Halteres 

 dark bro^vn. Only the fore-leg remains ; this is very short for the 

 size of the fly, dark brovvii throughout, there being no indication of 

 paler on either segment. Wings brown with a comparatively narrow 

 white cross- band that lies entirely proximad of the cord, this not 

 including the costal cell and ending immediately before the posterior 

 margin at the end of vein 1st A; this band occupies the middle fifth 

 of cell 1st Rl and the ends of cells R, M and Cu; the band is of 

 nearly uniform width for its enthe length or slightly narrower in 

 ceU Isl Rl ; in addition to this band there is a conspicuous whitish 

 blotch in cell R before the origin of Rs ; Anal cells slightly paler than 

 the remainder of the wing- membrane; the costal margin is not 

 brightened anywhere along its length; veins dark brovv'n, paler in 

 the Avhite bands. Venation : 8c\ ending about opposite the fork 

 of Rs, Sc2 not far from the tip of Scl ; r about twice its length from 

 the tip oiRl and on R2 a short distance beyond the fork of i?2 + 3 ; 

 cell Ml lacking; basal deflection of Cul at about one-third the 

 length of cell 1st 312 ; Cu2 a little shorter than the basal deflection 

 of Cul. 



Abdomen with the basal half of each of the tergites shiny blue- 

 black, the distal half opaque black. Ovipositor with the genital 

 segment obscure reddish yellow; valves slender, dark brown, the 

 tips broken. 



Hab. Brazil (Ex the Winthem Collection). 



Eriocera perlaeta, sp. n. 



Male. — Length 11-8-12 mm. ; wing 10-2-10-8 mm. 

 Female. — Length about 12-5 mm. ; wing 10-5 mm. 



Eriocera perlaeta is the species discussed by Schiner 

 (" Reise Novara," p. 42) as E. caminaria (Wiedemann). 

 The material at hand includes not only the specimens 

 upon which Schiner based these observations, but also the 

 type specimen of E. caminaria. From a comparison of 

 these specimens it is very evident that Schiner's material 

 represents an undescribed species of the genus. The 

 present species dijSers from caminaria in the following 

 respects : 



Legs dark brown, the fore femora with an extensive yelloAvish 

 area immediately beyond the base ; middle and hind femora with a 



