286 STUDIES IN AMERICAN TETTIGONIIDAE (oRTHOPTERA) 



directed strongly meso-proximad with sharp apex weakly decurved, internal 

 margin of swollen portion straight, external margin of cercus concave, distal 

 portion strongly depressed and directed outward with margins converging to 

 the rather broadly rounded apex. Subgenital plate with distal margin very 

 w-eakly concave between the comparatively long disto-lateral styles. Ventral 

 margins of the caudal femora unarmed, genicular areas not darkened, genicular 

 lobes normally bispinose; tarsi, comparatively, rather short. 



Females rather similar excepting for sex characters but slightly more slender, 

 with caudal margins of lateral lobes of pronotum straight. Tegniina not as 

 long as pronotum, much shorter than in male, rather broadly rounded at apex; 

 wings reaching to tips of tegmina, rather broadly rounded at apices and dis- 

 tinctly aborted. Ovipositor very long and slender and very weakly curved, 

 approximately straight. Subgenital plate shield-shaped, mainly flat, briefly 

 curving upward laterad and embracing base of ovipositor, brief distal margin 

 of flat surface transverse. 



MeasurcmctUs (in millimeters) 



O 0_g Or; 'o'^ °— • ° ° °''^ 



Sapucay, ?■= |§ fa 2| |g ^t f-^ ^•S' 



Paraguay. ^^ r-i ^^ > ^^ j-^h-) 



Alloiyve,&.. 16 3.2 7.9 2.S 12.6 2.2 .6 



cf 16 3.1 7.6 2.8 12.9 2.2 .7 



9 1.5.5 3.3 3.2 ... 13.3 21.1 



The type series and males in the United States National Mu- 

 seum examined by us, and an additional female taken by the 

 same collector at the same locality and in the Hebard Collection, 

 these specimens taken from December to April 1900-1902, two 

 males, four females and one immature female, are the only speci- 

 mens known of this interestinp; species. 



Subgenus Aphauropus*'^ new subgenus 

 The subgenus includes a single species from Tepic, IMexico. 

 Tyye of Subgenus. — Conocephalus leptoptenis new species. 

 Subgencric Description. — Prosternum bispinose. Subgenital 

 plate of male unknowni. Ventral margins of cephalic and median 

 tibiae armed with seven or eight well spaced spines. Caudal 

 tibiae with dorsal and ventral pairs of distal spurs absent, armed 

 at the distal extremities with a single (well-developed) pair of 

 median spurs as in the sul)g(Mms Anarthro])i(s. Tegmina of fe- 

 male greatly aV)()rted, wings missing. Size nuMlium for the genus, 

 form robust. 



8' Approximately, if ilattciicd out. 



*2 From ot^aupos = weak and 7ro0s = foot, in allusion to absence of the nor- 

 mal dorsal and ventral pairs of distal spurs of the caudal tibiae. 



