288 



DESCRIPTION. 



Winged viviparous female.— Body 2 millimetres long by 1 wide across the ab- 

 domen ; bead to tip of wings, 4.5 millimetres; wing expanse 8 millimetres; antennae 

 1.6 millimetres. 



Head and thorax dull yellowish-brown; abdomen olive-green; base of antennae 

 yellowish-brown, remainder piceous ; coxse, trochanters and proximal half of femora 

 yellowish-brown, rest of legs piceous. Wings transparent ; veins yellowish-brown ; 

 stigma dusky. Body, legs, and antennae furnished with rather long light-brown hairs. 



Apterous male (Fig. 23, a). — Body slender, flattened; dorsal surface tubercu- 

 late, each tubercle surmounted by a long, slender, light-brown hair. General color 

 greenish-black, with an indistinct olive-green patch at the base of the cornicles ; and 

 in some specimens with the head and prothorax more or less tinged with brown; 

 antennae piceous, except at base, where they are often greenish ; eyes reddish-brown ; 

 coxae, trochanters, and proximal one-third of femora greenish, remainder of legs 

 piceous. Legs hairy. Antennae hairy ; joint iii long, equal to iv plus v, these two 

 being subequal, although iv is very slightly the longer ; vi short, about one-third as 

 long as the slender vii. Cauda short. Cornicles short. Prothorax with a tubercle 

 ou each side, near the posterior border. 



Oviparous female (Fig. 23, &).— Body 3 millimetres long by 1.5 wide across mid- 

 dle of abdomen ; antennae 1.4 millimetres long. 



FiG.23.—Chaitophoru8 negundinis : a, apterous male; h, oviparous female; d, egg; all greatly en. 

 larged ; c, eggs on twig, natural size (original). 



Body somewhat flattened. General color greenish or gi-eenish-brown ; head and 

 prothorax brownish ; sides of abdomen and cornicles olive-green, with central por- 

 tion brownish ; first two and half of third joints of antennae light brown, remainder 

 dusky ; central portion of entire ventral surface of body, including rostrum, brown- 

 ish, sides greenish ; coxae, trochanters, and about half of femora yellowish-brown or 

 greenish-brown ; rest of femora, together with tibiae and tarsi, piceous. Eyes dusky. 

 Body, legs, and antennae thickly clothed with long brown hairs. Joint iii of anten- 

 nae long, not quite equal to iv plus v ; iv slightly longer than v, which is longer than 

 VI ; VII twice as long as vi. Cornicles short, flanged at tip. 



