Deraeocoris (Heteroptera, Miridae) 175 



Key to the Varieties of Sayi 



1. Scutelluni pale or red .......... 2 



Scutellum black, or only the median line pale apically .... 5 



2. Lateral margins of pronotum black, or only narrowly pale at anterior 



angles ............ 3 



Lateral margins of pronotum broadly pale or reddish .... 4 



3. Front of head pale to reddish . . . sayi sayi Rent. p. 175 

 Front of head distinctly blackish . . frontalis n. var. p. 177 



4. Embolium black like the corium . . iiiarginalus n. var. p. 176 

 Embolium pale and the cuneus more or less translucent 



costalis n. var. p. 177 



5. Femora black, distinctly annulated with pale near apices . 



iiiiicolor n. var. p. 177 



Femora distinctly pale on basal half, broadly annulated with black at 



middle of apical half .... fcmoralis u. var. p. 177 



Deraeocoris sayi sayi (Renter) 



$. Length 7.4 mm. Head: width 1.25 mm., vertex .0 mm., length .68 

 mm. ; carina slight but apparent, collum broadly exposed, pale, separated from 

 vertex by a groove ; front broad and only slightly convex ; facial angle a 

 right angle or slightly greater, juga prominent, face strongly pubescent; pale 

 to yellowish, surrounding base of antenna, lorae, bucculae, tip of tylus and 

 sometimes a geminate mark on basal half, fuscous to blackish. Rostrum, 

 length 2.34 mm., nearly attaining hind margins of the middle coxae, dark 

 brownish to piceous. 



Antennae: segment I, length .6 mm.; II, 1.77 mm., nearly cylindrical but 

 tapering smaller at base, equal in thickness to segment I, dusky pubescent, 

 length of exserted hairs about equal to twice the thickness of segment ; III, 

 .62 mm. ; IV, .43 mm. ; all the segments black. 



Pronotum: length 1.6 mm., width at base 2.82 mm., anterior angles 1.14 

 mm. : collar .91 mm., yellowish brown ; disk moderately convex, rather closely 

 but more coarsely punctate behind the calli, lateral margins distinct, nearly 

 straight, anterior angles narrow but distinct, strongly pubescent or hairy; black, 

 slender basal margin, narrowdy at anterior angles, and median line on disk near 

 posterior margin, pale; calli very slightly convex, black, smooth and shining; 

 propleura black, opaque except at dorsal margin, becoming pale at lower mar- 

 gin, more finely punctate than disk; xyphus nearly flat, pale to yellowish, 

 finely pubescent. Scutellum moderately convex, pilose, yellowish to pink or 

 red, the median line frequently paler ; mesoscutum moderately exposed, black- 

 ish. Ster}nt))i fusco-brownish to black, paler at the median line; pleura black- 

 ish, paler at margins of sclerites : ostiolar peritreme dark fuscous. 



Hemelytra: width 3.4 mm., embolar margin slightly arcuate; disk mod- 

 erately convex, strongly pubescent or hairy, coarsely and rather closely punc- 

 tate ; uniformly black or brownish black. Cuneus moderately deflexed, black 

 like the corium. Membrane and veins strongly infuscated, paler bordering tiip 

 of cuneus and apex of areoles. 



