HANCOCK 107 



OCHETOTETTIX BARRETTI, MANX. 



Plate VII., Figs. 3^33. 



Vertex very broad, twice the width of one of the eyes, and 

 projecting in advance of them, its front margin convex, with 

 a prominent median tooth, the mid-carina, whose apex is nearly 

 half the length of one of the eyes in advance of their front 

 margin; shallowly excavate above on each side of the mid- 

 carina; the crown elevated, with indications of mammillEe 

 close to and nearly opposite the middle of the eyes. Eyes of 

 moderate size, but little protuberant. Face in profile convex, 

 with a slight emargination at the lower end of the rami of the 

 facial costa. Antennae very short, inserted just below the 

 level of the eyes, separated by a space three to four times 

 greater than the distance between them and the eyes. Facial 

 costa forking high up, opposite the upper part of the eyes, 

 the rami of moderate height, smoothly sinuous, convergent 

 below, forming a deep, concave, broadl\- lanceolate scutellum, 

 acutely pointed above. Pronotum moderately tectiform, trun- 

 cate before, cuneate behind, reaching the apex of the hind 

 femora, the humeral angles ver\' obtuse, sides of hind process 

 nearly straight; surface granular-tuberculate; mid and lateral 

 carinje prominent, sharp, the former arched in front of the 

 shoulders, straight or slightl\- undulate behind. Supernu- 

 merary carinula; short, distinct, placed just in front of the 

 humeral angles, parallel to the lateral carina, midway between 

 them and the mid-carinae. Lateral lobes with the posterior 

 sinus very shallow, somewhat as in Ncotcttix. 



Elytra narrowly lanceolate, rounded at the apex. Wings 

 absent. Anterior and middle femora short and stout, of the 

 female two and one-half by one, of the male almost clypeate, 

 barely two by one, the lower margins lobate; hind femora 

 stout, genicular and femoral lobes conspicuous. 



Total length, t, 7 mm., J, 6.8-8 mm.; pronotum, ^, 6 

 mm., $, 6.2-7 mm.; post, fem., t. 4 mm., J, 4.4-5 mm.; 

 antennffi, $, 1.5 mm., $, 2 mm. 



Locality, Tizapan, D. F., Mexico (O. W. Barrett), Han- 



