MORGAN HEBARD 269 



A single male at hand, from the National Museum, was taken 

 on sugar beets at Guadalupe, Santa Barbara County, on June 

 24, 1906, by A. N. Caudell. Excepting two males and four 

 females from Monterey, captured by G. P. Englehardt on August 

 4, 1916, the remaining series was taken at Del Monte by Hebard 

 on August 20, 1909, and by Rehn and Hebard on September 9 

 and 10, 1910; excepting the type and allotype, these are consid- 

 ered paratypes. On both occasions the species was found com- 

 mon, particularly in the extensive open areas of short dry grass, 

 where a low yellow-flowered " tar-weed" was abundant. 18 



Oedaleonotus fratercula new species (Plate XXIX, fig. 4) 



This, the smallest species of the genus, is seen to be in some 

 ways annectant between the other forms of the genus and the 

 distinctive O. fuscipes (Scudder). 



This insect agrees with fuscipes in general contour and appear- 

 ance, and in the male sex in the absence of furcula and presence 

 of an apical tubercle on the subgenital plate. It differs from 

 that species in the smaller size, slightly less robust form, appre- 

 ciable, though weak, lateral carinae of the pronotum and, in the 

 male, in the supra-anal plate, which is unspecialized toward the 

 cereal bases and the cerci, which are more slender distad. 



Type. — c? ; Del Monte, Monterey County, California. Sep- 

 tember 9 and 10, 1910. (Rehn and Hebard.) [Hebard Collec- 

 tion, Type no. 487.] 



Size small, smallest of the genus; form medium, slender for the genus. Head 

 very similar to that of fuscipes, eyes slightly longer than genae as in that species. 

 Pronotum with lateral carinae weak; median carina well developed on meta- 

 zona, moderately developed on proximal portion of prozona, subobsolete in 

 intervening area; sulci moderately decided, the first the weakest; caudal margin 

 of disk transverse, very feebly convex. Tegmina lateral, broadly oval pads, 

 much shorter than pronotum, separated by a brief interspace. 19 Furcula 

 absent. Supra-anal plate simple, elongate, triangular with margins gently 

 convex and apex rounded, surface with a heavy and deep medio-longitudinal 

 sulcation in proximal two-fifths, between the raised margins of this sulcation 

 and the lateral margins it is broadly concave. Cerci proximad broad and 

 moderately tumid, narrowing evenly in proximal three-fifths, distal two-fifths 

 very narrow with apex rounded, 20 this portion curving moderately inward. 

 Subgenital plate with a large and moderately blunt apical tubercle. 



18 See notes under Hesperotettix pacificus capillatus on page 262. 



19 The tegmina are occasionally attingent in this sex. 



20 The width of the distal portion of the cerci is seen to be variable to a 

 certain degree in the males of fratercula at hand. 



TRANS. AM. ENT. SOC, XLV. 



