no. 1645. REVISION OF CERTAIN SOCTVIDJE SMITH. 231 



agreeing in collection number with those described by Doctor Harvey, 

 so that there can be no question as to the Harvey species. 



The spinulation of the middle tibiae in both sexes is scant; but the 

 spinules are long and are as a rule readily made out through the vesti- 

 ture. The femoral tufting in the male is distinct and the mass of 

 specialized scales is large and conspicuous. 



The genital structure of the male is grotesquely asymmetrical. The 

 left side has, beside the broader lateral piece, an accessory structure 

 which is long, slender, and extends beyond the tip of the broader por- 

 tion. The linens is unusually long and is transversely compressed or 

 flattened into a blade, utterly unlike the usual forms. 



In the female the upper surface of the segment is not modified, but 

 on the under surface it is curiously broken up into small chitinous 

 plate-, surrounding the large opening to .the copulatory pouch, which 

 is on the lower part of the segment. There is no appearance of a 

 division into distinct lobes or plates. 



PHffiOCYMA UNDULARIS (Drury). 



1770. Noel mi undularis Druby, Illustr., I, pi. ix, fig. 4. 

 1816. Anthracia undularis Hubneb, Verzeichniss, p. 275. 

 1852. Ypsia undularis <ii enee, spec Gen., Noct., Ill, p. 18. 

 1857. Ypsia undularis Walkeb, ('. B. Mus., Het., XIII. p. 1074. 

 L864. Homoptera ni</ri<-<nix Bethune, Proc. Ent. Sec. Phil., IV. p. I'll. 

 1865. Homoptera nigricans Bethune, Canadian Journal, X. p. 252. 

 is77. Homoptera umbripennis Gbote, ('an. Knt., VIII, p. 109. 

 1893. Homoptera umbripennis (var. of undularis) Smith, Bull. No. 44, 

 U. S. Nat. Mus., p. 373. 



Ground color ranging from very dark smoky brown to sooty black, 

 often somewhat shining. Head and thorax without obvious mark- 

 ings; dorsal tuftings of abdomen small. Primaries very uniform in 

 color. Basal line geminate, dead black or velvety black so as to be 

 visible on the dark ground. T. a. line geminate, the outer portion 

 of line usually velvety black, the inner less obvious; as a whole rather 

 evenly oblique from costa to inner margin. The median area is 

 crossed by three broad, somewhat diffuse dead black lines. Orbicular 

 sometimes marked as an intense black spot. Reniform narrow, 

 oblique, laterally defined by intense black scales. T. p. line black, 

 sometimes geminate, the lines very slender, outcurved over the cell, 

 a little drawn in opposite reniform and then almost evenly oblique 

 to inner margin, not much beyond its middle. S. t. line better marked, 

 broader, more intensely black, interrupted by a white or pale spot 

 opposite cell, moderately outcurved just below tin- spot, else very 

 even in course. A darker terminal line, sometimes emphasized by 

 venular white dots. Secondaries basally a little more brown in most 

 specimens, the disk crossed by three, somewhat diffuse, slightly undu- 

 lating lines. A conspicuous intensely black line continues the s. t. 

 line of primaries across the secondaries to the anal angle. Beneath, 



