August, '09] JOURNAL OF ECONOMIC ENTOMOLOGY 301 



antennaB two thirds as long as body, black, hairy, the base of third joint 

 pale; legs black and pilose; basal part of femora green; tibiae brown, with 

 black apices ; abdomen elongate oval, dusky orange, with seven transverse 

 black bars on the dorsum. These bars are sometimes broken in the center 

 and do not reach the lateral margins. There are on the abdomen lateral rows 

 of black spots. Cauda short, pilose, orange, tipped with black; cornicles 

 half as long again as the cauda, pale orange, with dusky tips, contracted for 

 their basal third and again, slightly, at their tips ; wings long, naiTow ; 

 stigma gray, narrow, acutely pointed at the apex; subcosta and insertions 

 dark ; veins brown, third discoidal obsolete at its base ; origin of second 

 branch near the apex of the wing; beak just reaches posterior coxae. 



Apterous Viviparous Female 



Length of body 3.3 mm. ; breadth of body 1.5 mm. cornicles .4 mm. ; dark 

 green or in some specimens brownish ; antennae pilose, half as long as body, 

 pale yellow, with joints dusky ; eyes red ; legs brownish yellow, tibial apices 

 and tarsi black ; cornicles yellow, slightly clavate, black at their tips ; beak 

 reaches first abdominal segment. The body is covered all over with short 

 hairs. Found on the stems and leaves of Salix in April. This species is much 

 attended by ants. A large parasite (Dieretns) was bred from infested speci- 

 mens. 



Chaitophoriis sp. Salix. 



A small black species found on the leaves and twigs of willow in April. 

 Alate forms were not found. Length of body 1.80 mm. ; breadth of body .9 

 mm. ; head, thorax and abdomen black, with the exception of a median yellow 

 line, which varies in width ; body broadest near the posterior end ; legs and 

 antennae grayish ; antennae thick, pilose, almost half the length of the body ; 

 III .3 mm., IV .17 mm., V .09 mm., VI .07 mm., VII .1 mm. ; cornicles short, 

 tuberculate, broader than long, pale ; cauda short, pilose, black ; beak exceed- 

 ing second coxae ; pupa like larva ; thorax and wing-pads green. In alcoholic 

 specimens there appear light patches at the base of the cornicles and trans- 

 verse rows of dots on the abdominal segments. Not having any alate forms, 

 I will not venture to give this species a name, as it has possibly already been 

 described. 



Callipterus betuloecolens Fitch ; Betula. 



On the under side of leaves of birches in Palo Alto in May. 



C. caryce Monell; English Walnut. 



This little species is very common on walnut trees on the Uni- 

 versity Campus. I found them in large numbers on the buds and 

 unfolding leaves in March. 



C. arundicolens Clarke ; Bamboo. 



Found sparingly on the under side of the leaves of the bamboo 

 (Arundo) in October. 



C ulmifolii Monell ; TJlmus. 



Found in large quantities on the leaves of the elm {TJlmus) in the 



