130 



PSl CHE. 



[November — December i88S. 



females. Many of the latter were 

 mating, and some of the oviparous fe- 

 males had begun to deposit eggs on the 

 twigs about the buds. From this time 

 on the winged individuals became less 

 numerous until, by ii November, 

 they were only rarely found. At 

 the latter date, however, many of 

 the males and females were still on the 

 leaves and twigs. 



Winged viviparous female {pseit- 

 dogyna pup if era) . 



Expanse of wings ... 6 mm. 



Length of body ... 2 mm. 



Width of body .... 8 mm. 



Length of antennae . . 9 mm. 



Black above, except anterior and lat- 

 eral margins of abdomen, and in many 

 specimens more or less of posterior 

 portion. Beneath black, except pro- 

 thorax and abdomen (save a black 

 patch in front of anus) which are dull, 

 whitish-brown. Rostrum black, except 

 a more or less distinct lighter patch 

 near base, hairy, reaching posterior 

 coxae. Legs robust, black, except a 

 short, brownish space at base of ante- 

 rior femora ; thickly provided with 

 brown hairs. Antennae robust, beset 

 with brown hairs. Joints I and II, 

 short, smooth ; III, long, with row of 

 tubercles on its outer ventro-lateral sur- 

 face ; IV and V subequal, with tuber- 

 cles as on III ; VI, a little longer than 

 V, excavated on its outer lateral surface 

 about two-thirds distance from base. 

 Wing veins mostly brown. Stigma 

 brownish, with interior portion darker. 



Described from manv specimens 

 taken 24 October 18S7, on leaves of 



Cortms sangiiinea and C. sericea., 

 where for some time previous they had 

 been very numerous, founding sexed 

 colonies. Usually occurring on the 

 under surface. 



Apterous male. 



Width of body .... 0.05 mm. 

 Length of body .... 0.89 mm. 

 Length of antennae . . 0.47 mm. 



Body and members, brownish or 

 brownish-black, with numerous brown 

 hairs. Eyes black. Body flattened, 

 long and narrow, with nearly parallel 

 sides. Antennae half as long as body. 

 Joint I, short, swollen ; II, small ; III, 

 longest ; IV and V, subequal ; the 

 latter excavated on its apical lateral 

 surface. Legs long, robust, same color 

 as body. Rostrum robust, reaching 

 anterior margin of posterior coxae. 



Described from several living speci- 

 mens (part taken in copula) .. ixon\ Cor- 

 nus sericea., collected 24 October 

 1SS7. 



Oviparous female. 



Width of body . . . 0.50 mm. 

 Length of body . . . 1.14 mm. 

 Length of antennae . . 0.35 mm. 



Green, or greenish-brown, slightly 

 darker anteriorly. Shape, elongate- 

 oval ; sparsely clothed with brown 

 hairs. Eyes blackish. Antennae green, 

 slightly darker apically ; joint III 

 longest. V slightly swollen in middle. 

 Rostrum robust, green, darker at tip, 

 reaching anterior margin of posterior 

 coxa3. Legs unicolorous with body, 

 dusky apically. 



Egg- 



Elongate oval, 0.56 mm. long, 0.2 

 wide. 



