JO. 1461. LIST OF PARA Q UA YAN LOCUSTS— BR VNER. 633 



Head rather large, smooth, a little broader below than above, nearl}- 

 IS long- as pronotuni; the occiput gently rounded; the vertex about as 

 Iwide as the shortest dianietc^r of one of the eyes, without a longitudi- 

 lal carina, and meeting in front at less than a right angle, lateral 

 jarinoe- fairly prominent, the surface within depressed so as to form a 

 ^semicircular groove extending across the front; frontal costa promi- 

 nent, a very little narrower at the ocellus than between the antenna? 

 and below, sulcate deeply throughout. Face rather strongly oblique, 

 straight when viewed laterally, facial carina? strong, straight, greatly 

 divergent; eyes pja-iform, considerably diverging, about as long as 

 that portion of the cheeks below them. Antenna? coarsely filiform 

 and with the basal joints a little depressed, but not enough so as to 

 give to these members even a subensiform appearance, a little longer 

 than the head and pronotum together. Pronotuni nearly cylindrical, 

 without lateral carinte, but with a strong, equal, median one, smooth 

 on anterior lobe, finely and closely punctulate on posterior, the latter 

 lobe about one-fourth shorter than the former; anterior edge broadly 

 rounded, the hind edge obtusangulate, lower lateral edges sinuate. 

 Tegmina membranous, of medium width, paucily veined, the apex 

 rounded and without an intercalaiy vein, a little surpassing the tip of 

 abdomen but not quite reaching the apices of hind femora. Latter 

 long, slender on apical, rather robust on basal half; hind tibia? pro- 

 fusely hirsute and with 11 spines in outer row. • Upper valves of 

 ovipositor short, slender at base but broad to near apex, the tip short. 

 Mesosternal lobes about as wide apart as the lobes themselves. 

 Type of genui^. — Amhlyscapheus Ihieatris. 



AMBLYSCAPHEUS LINEATUS, new species. 



A medium sized but moderately robust insect, the general color of 

 which is bright yellow with black antenna? and two prominent very dark 

 brown or blackish stripes which extend from the f astigium, one on each 

 side of vertex, head, pronotum, and tegmina, to apex. On the latter 

 these dark stripes gradually widen and occupy the entire discal field and 

 become gradually paler from base to tip. Knees of hind femora and 

 immediate base of tibia? also black. Hind tibia? pale glaucous above 

 and on sides, the lower edge dark lined. 



Length of body, male, 26; of pronotum, 5; of antennae, 10.5; of 

 tegmina, 19; of hind femora, 16.5 mm. 



Type.— C?it. No. 9730, U.S.N.M. 



Habitat. — Sapucay, 3 females, December, February, and March. 



At first glance this insect reminds one very much of the male of 

 Staurorhectus longicornis Giglio-Tos, but the absence of lateral pro- 

 notal carinas will at once indicate its location. The male is evidently 

 much smaller than the female. 



