Occasional Papers of the Musenin of Zoology 33 



Orthotylus pacificus Van Duzee, sp. nov. 



"Closely allied to dorsalis but larger with longer antennae; 

 black, marked with fulvotestaceoiis about as in dorsalis, the 

 cuneus entirely pale, dextral male clasper deeply notched ; 

 length to tip of membrane 6 mm. 



'"Vertex moderately convex, transversely depressed before 

 the broad convex basal carina, this depression produced for- 

 ward a little on the median line. First antennal segment as 

 long as posterior lobe of pronotum; second as long as from 

 the base of pronotum to the apex of clavus; third about one- 

 half the length of the second; fourth one-half the third and. 

 subequal to the first. Length of pronotum a little more than 

 one-half its basal width ; callosities prominent, broad oval, well 

 defined posteriorly by an impressed line; sides slightly arcuated 

 with the anterior angles well rounded; hind margin truncate. 

 Elytra long^ parallel, the costa almost rectilinear; abdomen at- 

 taining basal third of cuneus. Whole upper surface sparsely 

 clothed with a short pale appressed pubescence. Rostrum at- 

 taining middle of intermediate coxae. Dextral male clasper 

 almost straight along its ventral margin, produced in a smooth 

 acuminate point at apex; dorsally produced in two serrated 

 squarish lobes, the basal longer and a little narrower ; sinistral 

 clasper as long as the dextral, almost linear and a little sinuous, 

 its base dorsally with a long slender parallel appendage which 

 is bent into a curved hook at apex and attains the apical fourth 

 of the clasper. 



"Color fuscous or black marked with f ulvotestaceous ; above 

 mostly black ; margin of vertex next the eyes, anterior and lat- 

 eral margins of pronotum, a broad median vitta from behind 

 the callosities to apex of scutellum, and slender scutellar and 

 commisural margins of the clavus, pale. Corium and cuneus 



