180 Journal New York Entomological Society. t^'°'- xxvii. 



identity Say's Cicada rimosa, described in 1830, and designated as 

 the type of his genus Okanagana by Mr. Distant in 1905. We hope 

 that we have successfully accomplished this, and the conclusions 

 reached are to be found in the remarks on rimosa. 



The original description of the genus Okanagana was published in 

 the Annals and Magazine of Natural History, Seventh Series, Vol- 

 ume XVI, pp. 23, 190, 1905, and is as follows: "Head (including 

 eyes) considerably narrower than base of mesonotum and almost 

 equal to its length (including cruciform elevation) ; front shorter than 

 vertex, its apex more or less emarginate, vertex centrally sulcate; 

 pronotum about as long as head, its anterior angles in a line with 

 eyes, its posterior angles dilated; abdomen in male longer, in female 

 about as long as space between apex of head and base of cruciform 

 elevation; tympana completely exposed, tympanal coverings entirely 

 absent; face more or less centrally sulcate; rostrum reaching the 

 intermediate coxae ; opercula small, transverse ; abdomen beneath 

 with the lateral margins broadly recurved; tegmina and wings 

 hyaline; tegmina with the basal cell about or almost twice as long as 

 broad, apical areas eight ; wings with six apical areas. Type, O. 

 rimosa Say {Cicada)." 



The genus Tibicinoides was described by Mr. Distant in the An- 

 nals and Magazine of Natural History, Series 8, Vol. XIV, p. 166, 

 Aug., 1914, and Uhler's Tibicen ciipreo-sparsus was designated as 

 type. Some of the characters mentioned are "tegmina and wings 

 semiopaque; tegmina with the basal cell about twice as long as broad; 

 apical areas short in length, eight in number, a curved rudimentary 

 vein, curved inwardly, crossing tegmen from base of first ulnar area 

 to base of lower apical area; posterior tibiae with a few fine spines." 

 While the fore wings in Okanagana mercedita and 0. minuta are not 

 colored as in cupreo-sparsus, the short apical areas show the three 

 species to be related, and they may in the future be placed in the 

 genus Tibicinoides as indicated in the table. 



Owing to the length of the marginal cells Uhler's Cicada hesperia 

 has been placed in the table near striaitipcs and titahensis, which it 

 also resembles in some other features, instead of in the genus 

 Tibicinoides, where its color pattern would place it. 



