250 W. D. P'UNKHOUHER 



uiiideutified. The gemis is primarily troe-inhabiting and is common on oak 



and basswood, and the insects are sohtary in habit. The adults are strong 



flyers and are difficult to capture. Only a few have been reared, due to 



the difficulty of keeping the host plants in the insectary. It is believed 



that the species recognized may be separated by the following key, which, 



however, is admittedly weak in that it has been necessary to make use 



of the pronotal characters on which the species were founded: 



a. Crest ob.solete or only faintly indicated ohsolela 



aa. Crest prominent. 



b. Crest leaning forward over head projecta 



bb. Crest vertical or nearly so. 



c. Crest slender; pointed at tip. 



d. Crest highest in front dcclivata 



dd. Crest highest in middle. 



e. Crest as broad as high barbnla 



ee. Crest twice as high as broad pyramidaia 



cc. Crest broad; rounded or truncate at tip. 



d. Front margin of crest perpendicular or nearly so. 



e. Females bright green; males yellow, banded with brown unicolor 



ee. Neither sex green. 



f . Posterior margin of crest white monlicola 



ff. Posterior margin of crest not white. 



g. Concolorous ferruginous pridnosa 



gg. Mottled or banded. 



h. Yellow mottled with brown tristis 



hh. Gray with transverse brown band ampdopsidis 



dd. Front margin of crest sloping. 



e. Crest as high as or higher than broad. 



f . Posterior margin white querci 



ff . Tip hollowed out posteriorly concava 



ee. Crest not so high as broad. 



f . Pale yellow marked with light brown Westcofti 



ff . Brown banded with darker redivata 



fff . Gray with oblique brown fascia decoraia 



23. Telamona declivata \an Duzee (Plate xxvi, 13) 



1908 Telamona declivata Van Duzee, Stud. N. A. Memb., p. (i4. 



1909 Smith, Ins. N. J., p. 91. 



1914 Van Duzee, Trans. S. Diego Soc. Nat. Hist 2i:50. 



1916 Van Duzee, Check List Hem., p. 59, no. 1628. 



Very rare. One record for the basin, taken on July 12, 1899. No 



record of host. Easily recognized by the very peculiar shape of the 



crest, which is much higher in its anterior than in its posterior half, making 



a distinct step as in the genus Heliria. 



Technical description.— Long, narrow pronotum; crest high, sloping steeply backward and 

 more or less step-shaped suggesting the genus Heliria; posterior process exceeding tips of 

 tegmina; tegmina smoky hyaline, punctate at bases and clouded with brown at tips. 



