377 



as ill Eucrostix or r.-ieudotciyna ; I'mnt inodcraicly broad, less so, however, 

 lliaii ill Eiicroxfis. Palpi rallicr loiiir and slender, project iiig liirther tiian usual 

 ix'Vond tlie front (llionsrli not nearly so nincli so as in Si/nclilora), sli<rlitly 

 ascending; tliird joint small, Iml distinct. AnteniKe pectinated alino.st to tlic 

 tip: l)raiiclies about half as long in proportion as in I'lucros/is. or lon<rer than 

 ill any other geims except Eucroslis: in llie female, slender and filiibrm. Fort; 

 wings shaped niiudi as in Jliicioslis, costa curv<'d in the same manner; aj)cx 

 subacnt(% outer edge curved in iiiiudi the same way. The. costal space; is 

 slightly narrower in pro|)()iiioii than in Eucrostis^ and the iiflh sulicostal or 

 sul)a])ieal space is small, being one-fourth as long as the wing, wiiile in 

 Eticrostis it is much larger, being one-third as long as the costa of the wing. 

 Hind wings of much the same shape as in Fhorodesma and PscHdoterpna, not 

 being produced and subangnlated as in Eitcyo-sds, or so long and fully rounded 

 as in Eiinemorin ; the apical region is full and rounded, while the outer edge 

 is very straight. The venation is niiudi as in Annemoria, the posterior discal 

 venule being greatly curved; the sixth sul)C()stal venule co-originates with 

 the anterior discal venule. The costal vein, after anastomosing with the sub- 

 costal, is thrown off near the Itase of the subcostal c<'ll. 'I'he abdomen docs 

 not reach the anal angle of the hind wings; its shape is much as in Eucrostis. 

 Hind legs nnusually small; tibije very slender and short, shorter than the 

 tarsi, and with but a single terminal pair of spurs in both sexes. No essen- 

 tial dilTerence between the .sexes, excejit in the antennae. 



Coloration pale green, with a single oblique white line on the i()re wings ; 

 hind wings immaculate. The known species are of larger size than usual in 

 tile allied genera. 



While the palpi are less ascending than in Eucrostis, tiie antennae are one- 

 iialf as widely pectinated, I)ut wider than in E/tncmoria, ui\ in fiict, any genus 

 of the subfamily except Eucrostis. The hind legs are mucii as in Phorodesma, 

 but tliere is but one jiair of spurs, and the vertex -is not so broad as in that 

 genus, while the antenna' are pectinated near the tip. The hind wings are 

 more produced toward the apex than in Annnnoria. 



Sy/iopxis of the iSjfecies. 



Of large size, w ith male anteuuai iiarru wly pectiuated C. nevadaria. 



Like ucradaria, but fore wiugs sharper ; outer edjre more oliliquc; C. bistriuria. 



Small: male with very Inoadly-pectinated anteniue C. pernrirfflii'a. 



48 p H 



