THE DECTICINuE OF NORTH AMERICA— CA UDELL. 369 



and straig^ht in the female, in the male armed on the inner side with 

 a tooth or projection, or curved inwards apically. Supraanal plate 

 triangular in both sexes ; last dorsal segment of the abdomen of both 

 sexes triangularly or roundly incised; subgenital plate of the male 

 longer than broad, obtuse triangularly incised apically and ventro- 

 laterally carinate, the carinas terminating at the base of the apical 

 styles; subgenital plate of the female proportionately shorter than that 

 of the male, apically less angularly incised and without apical styles. 

 Ovipositor about as long as the posterior femora or considerably 

 shorter, more or less curved upward. 



Type. — AteIoj>b/s notaius Scudder. 



The armature of the anterior tibite in this genus, like those of /(hm- 

 tatiis and a few others, is variable, as will be seen from the discussion 

 of the following species. A sufficiently large number of specimens of 

 any of the species for study might show the number of dorsal spines 

 on the outer margin of the anterior tibia3 to vary in number from one 

 to three, though none have Ijeen seen with two spines. Color is some- 

 what varial)le, but fortunately the male cerci form an excellent synoptic 

 character, separating the genus into three unquestionably distinct spe- 

 cies, which, together with one species erected on the female only, may 

 be separated by the following key: 



KKY TO THE SPECIES OF ATELOPLUS. 



A. Larger; cerci of the male not shaped as fig. 59; ovipositor but little more than 

 three-fourths as long as the posterior femora. 

 B. Cerci of the male about four times as long as l)roa<l, armed on the inner side 

 with a stout preapical spine (fig. 55); posterior femora of l>oth sexes tipped 



with black 7iotatus, p. 369 



B'. Cerci of the male no longer than broad, armed on the inner side at the apex 

 with a verj' small, fine tooth (fig. 58) ; jiosterior femora of neither sex 



tipped with black schivarzi, p. 372 



A''. Smaller; cerci of the male, that of minor unknown, apically curved inwards, a 



slight shoulder on the outer side (fig. 59); ovipositor nearly as long as the 



posterior femora, decidedly more than three-fourths as long. 



B. Color yellowish brown, ovipositor more strongly curved upwards.. ^Mtew-s, p. 373 



B'. Color dark brown, ovipositor less strongly curved upwards minor, p. 371 



ATELOPLUS NOTATUS Scudder. 



Atelopluii notaius Scudder, Cat. Orth. U. S", 1900, i>p. 79, 98, p\. ii, fig. 3. — 

 KiKBY, Syn. Cat. Orth., II, 1906, p. 195. 



Description. — Head not prominent, deeply inserted into the pro- 

 notum, the anterior border of which projects slightly over the base of 

 the head; vertex broad, the interocular space as broad as twice the 

 width of one of the e3^es; front not greatly convex; eyes moderate in 

 size, moderately prominent; antenna? long and slender, more than 

 twice as long as the body. Pronotum moderatel}" produced posteriorly, 

 the lateral lobes shallow, not more than one-half as deep as the pro- 

 Proc. N. M. vol. xxxii— 07 24 



