48 BULLETIN 48, UNITED STATES NATIONAL MUSEUM. 



Hcrinisa litophora, (J rote. 



1873. Grote, Bull. Btiff. Soc. Ntit. Sci., I, SO, Litixjnutha. 

 1893. Smith, Bull. U. 8. Nat. Mus.. 44, 380, Ilonnisa. 



Gioimd color pale grayish yellow or luteotis. Head and thorax eoii- 

 eoloroiis. Primaries with costa and iriiiges brownish. Transverse 

 anterior line slender, e^en, brown, a little outcurved below theeosta; 

 thence evenly oblicjne to the hind margin. Transverse jmsterior line 

 slender, brown, even, strongly outcurved over the cell, then inwardly 

 oblnjue and with a slight incurve to the hind inargin about tMO thirds 

 from base. Subterminal line vaguely indicated by a few brown scales. 

 A narrow line at the base of fringes. Orbicular marked by a black dot 

 on the transverse anterior line. Iveniform marked by two black dots 

 at the end of the celh Secondaries paler, almost immaculate; a vague 

 darker median line and a mere trace of an outer or subtermm.d line. 

 Fringes brown with a somewhat metallic reflection, as has also the 

 fiinge of i)riniaries. Beneath paler, with dense ocherons i»owderings, 

 with a common median line, which is crenulate and broader on the 

 primaries, where it becomes also more even toward the costa. 



Expanse of wings, U.") mm.=0.9-J inch. 



Habitat. — Middle and Central States. 



This is smaller and narrower winged than H. absorptalLs, the primaries 

 somewhat more ]iointcd or drawn out apically. The body is slight, 

 liyralidilorm, and the abdomen considerably exceeds the anal angle at 

 the secondaries. The species is rare, and I have seen very few sjieci 

 mens, showing no variations. 



The male antenna' are in type as in the previous species; but there 

 are four modilied joints, more or less lamellate, and one of these, the 

 up])er, is furnished with a stout and rather long chitinous spine; the 

 scaly clothing being also more dense and i)rominent. 



The forelegs of the male are essentially as in H. <y&soi7>/^(//.s', except 

 that the tarsi are not quite aborted. The basal joint is very long and 

 stout, though a mere shell, the three ensuing joints are minute, but the 

 fourth is enlarged, somewhat bulbous, ^^'itll quite i)rominent, toothed 

 claws. Abortion is not carried quiteso far here as m its ally: but the 

 curious tarsal modihcation is as interesting as the complete absence of 

 this feature. 



Horiuisa bivittata, Grote. 



1877. Grote, Canadian Entomologist, IX, 198, I'allachira. 



"Entirely pale ochery, powdered with fuscous. A broad fuscous 

 stripe below median vein from base to external margin. A second, 

 shorter stripe, fr<nn the extremity of the cell outwardly. Else the 

 entire insect is concolorous." 



Expanse of wings, 25 to 26 mm. = 1 to 1.05 inches. 



Habitat. — Canada; Northern, Middle, and Central States; Iowa. 

 New York in July. 



