NORTH AMERICAN LEPIDOPTERA. 95 



11. C. vaguin n. sp. — Form slender, body beneath and abdomen pieeous, 

 head, thorax and elytra pale castaneous or rufo-testaceous, very feebly shining. 

 Antennae rufo-testaceous, a little shorter than the head and thorax, third joint 

 slightly longer than the second. Head oval, sides parallel, hind angles broadly 

 rounded, surface subopaque, finely alutaceous, sparsely punctate at middle, more 

 densely at the sides. Thorax narrower than Jthe head, one-fourth longer than 

 wide, sides feebly arcuate, surface subopaque, finely alutaceous, median smooth 

 space well defined, the punctures at the sides moderate not deep, regularly sparsely 

 placed. Elytra one-third wider than the thorax and distinctly longer, the surface 

 somewhat more shining than the head and thorax, the punctuation moderate in 

 size not deep, very regularly placed. Abdomen a little more shining, sparsely 

 finely punctate. Legs pale yellowish testaceous. Length .28-.32 inchj 7-8 mm. 



Male [Complete form). — Third ventral with a short transverse plica at centre . 

 fourth with a moderate fovea at centre, the hind margin prolonged at middle in a 

 lobe extending to the posterior margin of the fifth segment, the sides convergent 

 base of the lobe nearly as broad as its length ; seventh ventral entire (PL 1, fig. 23). 



Male [Incomplete form) . — Third and fourth ventrals with the fovea and plica as 

 above, the lobe of the fourth very short barely reaching the middle of the fifth 

 segment (PI. 1, fig. 24). 



Male [Imperfect form). — Third and fourth ventrals with a smaller plica and 

 fovea, the hind margin truncate without trace of lobe (PI. 1, fig. 25). 



Female. — Ventral segments simple without trace of plica or fovea. 

 This species although placed next ventrale in the table is very little 

 related except in color. It is smaller, more slender, less depressed. In 

 general appearance it seems more nearly part of the series which precedes 

 it. It may be known by the want of lustre of the head and thorax, 

 and by the punctuation of the latter less decided and apparently with a 

 tendency to become obsolete. 



Occurs in southwestern Texas ; eighteen specimens examined. 



13. C piliieriasiHin Lee. — Pale brown, moderately shining, very sparsely 

 pubescent, head piceous. Antennse shorter than the head and thorax, brown, two 

 basal joints paler, third slightly longer than second. Head rather broadly oval, 

 sides parallel, hind angles broadly rounded, surface less shining than the thorax, 

 the punctuation moderate and rather close, the front smoother. Thorax narrower 

 than the head, scarcely more than a fifth longer than wide, sides slightly arcuate, 

 median smooth space well defiued, on each side the punctures are coarse, moder- 

 ately deep not closely placed but equally disposed. Elytra one-fourth wider than 

 the thorax and distinctly longer, the punctuation coarse and deep, closely not 

 densely placed. Abdomen distinctly punctured and (in comparison with the usual 

 punctuation) rather coarse and close. Legs rufo-testaceous. Length .34-.44 inch ; 

 8.5-11 mm. 



Male [Complete form). — Third ventral with a short but well elevated plica at 

 centre; fourth with a large fovea, the posterior margin prolonged at middle into 

 a lobe extending to the middle of the sixth segment, its sides convergent; seventh 

 ventral entire (PI. 2, fig. 1). 



Male [Imperfect form). — Third and fourth ventrals with the plica and fovea as 

 above, fourth ventral truncate without trace of lobe posteriorly (PI. 2, fig. 2). 



Female. — Ventral segments absolutely simple. 



