434 ON SPECIES OF HADENA — SMITH. 



are less dentate. The color is brownish yellow like the preceding, but 

 the costal region is paler. The S genitalia are of the usual type, the 

 superior angle of the trigonate tip is excavated, and gives rise to the 

 moderately long, curved clasper; along the inferior margin of the tip 

 is a series of stiff spinules, longer than those fringing the outer margin. 



Mgrior is larger and darker than the preceding but with similar 

 maculation, and with the genitalia about alike. The white powdered 

 t. p. line on the dark ground gives the insect a distinctive appearance. 

 I have seen this form labelled sectilis, and also associated with cariosa, 

 but it is very distinct from either. 



Cariosa is distinguishable at a glance from the preceding by the dis- 

 tinctly marked ordinary spots, the orbicular round, and by the presence 

 of ihe claviform. It is rather a broad-winged form, and the costal 

 region is paler than the dark fuscous brown ground color. The genitalia 

 are distinctive. The clasper is entirely wanting, the superior angle of 

 the trigonate tip is excavate, and somewhat produced, beak-like. 

 The outer margin is fringed with spinules, and the inferior angle is 

 furnished with two stout short corneous spurs. 



Idonea is similar, but smaller, darker, more obscure in every respect, 

 the costal region is not paler, and the claviform extends nearly across, 

 the median space. No $ of this species has been examined. 



Vulgaris is rather a broad- winged form with obtuse apices; dull 

 luteous or fuscous brown, with an irregularly strigate appearance. The 

 genitalia are like those of verbascoides, except that the clasper is 

 shorter, and there is a small supplementary corneous projection behind 

 the tip. The orbicular is decumbent. 



Up to this point all the species have very distinct divided crests on 

 the thorax, extending forward, partly overlooking the collar and reach- 

 ing backward to the base. In the following species this crest is not 

 nearly so prominent, though distinct, and does not form the prominent 

 and striking feature that it does in the previous series. 



Antennata is a dark form, with a deep red -brown suffusion, somewhat 

 indistinct transverse lines, and a general resemblance to the cariosa 

 type of maculation, differing in the decumbent orbicular, which is typi- 

 cal of all the following species of this group. The genitalia are close 

 to those of verbascoides, save that the clasper is much longer, extend- 

 ing to the inferior angle of tip. The outer margin of tip is also 

 straighter. 



Cinefacta is at once different from all others in the group by the pale 

 gray color with more or less luteous, or as Mr. Grote says, " olivaceous 

 fuscous " suffusion, most distinct through the median space, but en- 

 tirely lacking in two Colorado specimens that I cannot consider as dis 

 tinct. The genitalia are peculiar. The tip has the angles rounded, 

 the superior much prolonged, and forming a somewhat ladle shaped 

 process. The clasper is short, very broad, conic rather beak-like, and 

 there is another longer, more slender, curved corneous hook on the 



