218 THE CANADIAN ENTOMOLOGIST 



TWO NEW SPECIES OF DICYPHUS FROM PORTO RICO, 

 (MIRID^, HETEROPTERA). 



BY EDMUND H. GIBSON, U. S. BUREAU OF ENTOMOLOGY, 

 WASHINGTON, D.C. 



Specimens of the following new species have been received 

 from Mr. R. T. Cotton, stationed at Rio Piedras, Porto Rico, 

 where he finds them injurious to tobacco plants. 



Dicyphus prasinus, n. sp. 



Resembling D. minimus Uhl., l)ut much larger and with greater 

 width at the base of the head. 



Head distinctly narrowed anteriorly, widest behind the eyes, 

 with short, inconspicuous hairs. Eyes large. Front very convex 

 and prominent. Clypeus prominent. First joint of antennai 

 stout and distinctly longer than the distance between the eyes, 

 second joint as long as the head and pronotum together, third joint 

 about equal to the second, and fourth joint equal to or slightly 

 longer than the first. Rostrum extending to or beyond the hind 

 coxae. Pronotum wider than long, posterior lateral angles acute, 

 posterior margin deeply emarginate, hairs or bristles on pronotum 

 more prominent than those on head. Callosities of pronotum 

 transverse, their posterior margin at the middle of the pronotum, 

 median line impressed. Pronotum deeply concave or grooved 

 at base of callosities. Colour: head, pronotum and scutellum pale 

 yellow to yellowish green; eyes dark; clypeus and first antennal 

 joint black; remainder of antenna- pale yellow to testaceous; a 

 broad, dark lateral stripe on head behind eyes. Elytra subhyaline 

 with small, fuscous spots, especially on the inner half. A large, 

 irregular fuscous spot near costal margin of each wing-cover and 

 midway between base and apex. Membrane more or less clouded 

 and veins fuscous. Abdomen pale green, legs yellowish. Length 

 to tip of hemelytra, 9 3^-3^ mm-, cf 3-3H mm. Width of 

 pronotum ^.^i mm. 



Described from three females and ten males, all of which are 

 in the collection of the IL S. National Museum. 



Dicyphus luridus, n. sp. 



This species may readily be distinguished from others of the 

 genus by its short head and lack of colour markings. 



June,, HU7 ' 



