PSYCHE. 



THE SPECIES OF CIRCOTETTIX, A NORTH AMERICAN GENUS 



OF OEDIPODINAE. 



BY SAMUEL H. SCUDDER, CAMBRIDGE, MASS. 



Circotettix was established by me in 

 1876 upon Oedipoda uiididata Thorn.; 

 and two other species, one of them then 

 undescribed, were mentioned as belong- 

 ing to it. In the same year Thomas de- 

 scribed an additional species and five 

 years later I published the undescribed 

 species above mentioned. In 1884 

 Saussure added two more and revised 

 the whole genus (Prodr. Oedip.) and 

 afterwards described a sixth species in 

 his Additamenta. Since then Bruner 

 has described several species, refer- 

 ring some of them here and some else- 

 where. In my recent Catalogue of 

 N. A. Orthoptera eleven species are 

 listed, but since its publication I have 

 undertaken a new study of the species, 

 necessitating some changes, the result 

 of which appears in the subjoined table 

 of ten species, to which I have added a 

 few notes, principally on distribution. 



In this table I have distinguished the 

 radials (radiate veins) of the anal area 

 of the hind wings, as superjacent or sub- 



jacent, according as they rise above or 

 fail below the general plane of the wing ; 

 the first superjacent radial terminates in 

 the middle of the axillary lobe. 



In the last two species, aberrant mem- 

 bers of the genus, the arrangement and 

 relations of the first subjacent and super- 

 jacent radials of the hind wings closely 

 resemble the same features in C. verru- 

 ciilatus, next which they are placed. 



Oedipoda sparsa Thorn., which is prob- 

 ably a Circotettix, is not included in the 

 table, as I have not seen it recently and 

 it is at present indeterminable. The 

 type is lost and although the figure given 

 in Wheeler's report shows hind wings of 

 a shape hardly consistent with Circotet- 

 tix, yet when the genus was established 

 I had evidently seen the species and re- 

 garded it as a Circotettix. Saussure 

 also so regarded it. 



Circotettix in the New World is repre- 

 sented by the genus Bryodema in the 

 Old World, but the former is much the 

 richer in species. 



