no. 1645. JtHVISION OF CERTAIN NOCTUID&— SMITH. 219 



appear now from limited material may become evanescent with better 

 collections at hand, but I am quite as ready to expect the contrary. 



Yavapai is the same thing in blackish; but this is unquestionably a 

 good species. It is very similar to some forms of edusina in macu- 

 lation, but the sexual characters are quite different. The female also 

 differs from those of the two preceding forms which have the nor- 

 mally lobed seventh abdominal segment by having the segment broken 

 up into irregular plates or pieces around the opening of the bursa 

 copulatrix. 



Calycanthata and horrida agree in having the s. t. and t. p. lines 

 coincident below vein 7 and in appearance the s. t. line only is repre- 

 sented. In both, also, the terminal area is paler; but while that is a 

 normal matter in both sexes of horrida, it is exceptional and occurs 

 only in the male of calycanthata. 



Calycanthata is on the whole almost the smallest species in the 

 genus and is characterized "in well-marked examples by white dorsal 

 abdominal tufts. 



Horrida has the thoracic tufts elevated, discolorous, and prominent, 

 while the abdominal tuftings are unequal in size and quite con- 

 spicuous. 



In tabular form the arrangement is as follows: 



1. Middle femora of male with a mass of specialized scales.* 



subgenus Phceocyma, 2 



Middle femora of male without such a mass of specialized scales 



! subgenus Xalc, lit 



2. T. a. line usually geminate, inwardly oblique with a slight outward 



convexity; even, not angulated or dentate 3 



T. a. line usually single, with an acute outward tooth on subcosta, 

 strongly drawn in on that vein ; more or less angulated or bent 

 below 14 



3. T. p. line single, slender, outwardly dentate in all the interspaces 4 



T. p. line geminate, irregular, but never outwardly denticulate iu the 



interspaces (5 



4. Base and a triangular costal area between t. p. and s. t. lines of pri- 



maries darker brown ; secondaries with a leaden gray or bluish area 

 beyond the curved extra-median band; more conspicuous in the 



male exhausta. 



Basal and costal areas concolorous or nearly so 5 



5. Gray, the lines very fine, not well marked; no contrasts in shading__/fW///-v. 

 Wood or leather brown, lines well marked, primaries in the males with 



blue linear shadings beyond s, t. line, in females with intermingled 



blue and greenish scales viridans. 



0. Penultimate segment of the female abdomen beneath, complete, though 



a symmetrical 7 



Penultimate segment of the female abdomen beneath, broken into 



irregular pieces 8 



Penultimate segment of the female abdomen beneath, divided into 



two lobes 9 



7. Larger, darker, more conspicuously marked; occurs east of the coast 



range intuitu. 



