Vol. VI] VAN DUZEE— SPECIES OF ORTHOTYLUS 113 



Redescribed from a good series taken, with dorsalis, on wil- 

 lows and thorn bushes, there probably accidental. The males 

 of this species and of dorsalis are nearly indistinguishable ex- 

 cept in their genital characters, but in dorsalis they more often 

 have the pronotum and scutellum entirely black. 



21. Orthotylus moUiculus, new species. 



Allied to dorsalis with the dark markings much reduced, 

 the face with a black X-shaped mark. Length 5mm. to tip 

 of membrane. 



Head broader than in the allied species. Vertex flattened, 

 with a distinctly foveate impression before the prominent basal 

 carina. Front but slightly convex ; clypeus small. Eyes large, 

 nearly two-thirds the width of the vertex; viewed from the 

 side short, ovate, reaching nearly to the gula. Antennse short; 

 third and fourth joints together not three-fourths the length 

 of the second, the fourth about equal to the first and two- 

 thirds the length of the third, a little dilated and flattened at 

 apex. Pronotum shorter than in dorsalis, more convex, the 

 sides feebly concave, the anterior angles rounded; callosities 

 large, closely approximated, moderately elevated. Basal lobe 

 of the scutellum but little exposed. Elytra rather short, about 

 as in female dorsalis, the apex of the abdomen hardly reaching 

 to the middle of the cuneus. 



Male genitalia whitish; dextral hook rather large, a little 

 curved inward and upward, the apex truncate and drawn out 

 dorsally into about four sharp teeth, near the base with an ob- 

 long plate projecting dorsally, the inner angle of which is pro- 

 duced in an acute tooth; sinistral hook long and spatulate, 

 much exceeding the ventral aspect of the segment. 



Color whitish-testaceous, perhaps tinged with green in life, 

 with a slight tint of yellow on the head and scutellum; the 

 basal lobe of the scutellum marked with black and fulvous. 

 Face marked with a large black X from the antennae to the 

 basal fovae, the pale angle above the clypeus sometimes filled 

 in with black; clypeus and outer cheeks in part black. An- 

 tennae black. Callosities black, connecting with a large fuscous 

 spot on either side of the disk of the pronotum. Sides and 

 suture of the scutellum black. Elytra pale with a fuscous cloud 



