Deraeocoris (Heteroptera^ Miridae) 145 



Venter: dark brownish to piceous, paler on 

 sides of genital segment, shining, pale pubes- 

 cent ; genital claspers (fig. 18) distinctive of 

 the species. 



$. Length 4.8 mm., width 2.22 mm., mar- 

 Fig. 18 Deraeocoris fulvus j^ of emboHum distinctly arcuated on apical 



male genital cla.spers. a, left '^ j f 



clasper, lateral aspect: b, in- half; head and disk of pronotum fulvous, col- 



ternal arm of left clasper; c. , i_ i i i i • • . i 



right clasper, lateral aspect. '"^1 black and shmmg, geminate mark on 



basal half of tylus blackish; scutellum pale 

 to fulvous, somewhat fulvous on basal half of clavus ; inner apical angles of 

 corium and joining across anal area of membrane, brownish black to piceous, 

 frequently a small spot at middle and base of corium fusco-brownish ; cuneus 

 yellowish translucent, more translucent at the lateral margin ; ventral parts 

 rather uniformly yellowish brown, infuscated along the vagina exterior ; an- 

 tennae pale to yellowish, segment II, 1.25 mm., slender, slightly thicker at 

 apex, pale pubescent, length of exserted hairs slightly greater than thickness 

 of segment. 



Holotype: $ August 4, Williams, Arizona (H. H. Knight); 

 Cornell University collection. Allotype : taken with the type. Para- 

 types: 2$ 149, taken with the types on white oak (Quercus sp.). 

 ARIZONA,— 29 Aug. 3, Grand View, Grand Canyon; 9 Aug. 4, Pres- 

 cott; $ 49 July 26, Mt. Lemon, alt. 9,000 ft., Santa Catalina Mts. (H. 

 H. Knight). 99 July 27, Huachuca Mts., alt. 9,000 ft. (H. G. Barber). 



KEY TO THE SPECIES OF GROUP IV 



1. Black, shining, scutellum red, head reddish ...... 



fulgidus Van D. p. 149 



Sometimes black but scutellum not red ; entirely pale, or grayish tes- 

 taceous and marked with black ........ 2 



2. Membrane clear, dorsum pallid, usually marked with black on the calli, 



corium sometimes fuscous on the apical half; infuscation on, scutellum 

 forming along the median line . . . schwarzii Uhler p. 146 



Membrane infuscated or at least fumate, dorsum black, or pallid gray 

 and marked with black ; scutellum with infuscation forming on each 

 side of the median line, black specimens may have the median line 

 entirely black ........••• 3 



3. Femora reddish or reddish brown, not distinctly banded on the apical 



half; scutellum reddish or reddish brown, becoming dark brown or 

 blackish at each side of the median line ; venter strongly reddish, varied 

 with yellowish brown ; dorsum with suffused brownish invading the 

 paler parts ; middle, base and apex of corium, and apex of embo- 



lium infuscated buUatus n. sp. p. 147 



Femora twice banded on the apical half with reddish or reddish brown; 

 scutellum pale yellowish, blackish spot each side of tlie pale median 

 line; venter piceous to black on the lower side, narrowly yellowish at 

 base and latero-dorsal margin . . convcxnJus n. sp. p. 148 



