408 JOURNAL OF ECONOMIC ENTOMOLOGY [Vol. 5 



joint III the longest, filament next, then joint IV and V sub-equal, then VI, I and II. 

 Legs entirely dusky brown. Cornicles green, shghtl}' incrassate, small, barely exceed- 

 ing the fore tarsi in length. Cauda slightly dusky, a little longer than the cornicles, 

 widest at the base, tapering gently to a blunt apex. Eyes dark red. Beak dusky, 

 very short, reaching midway between first and second coxae. Coxae very dark. 



Occurs on the upper side of the leaves of Cheno'podium murale L., 

 the sexual forms appearing in August. Habitat; San Jose, Cal. 

 Aphis salicicola Thos. 



Abundant on Willows throughout the summer. Preyed on by the 

 larva of a Leucopis (Agromyzidae) . Habitat; San Jose, Cal. 

 Aphis maidis Fitch. 



Colonizing Corn {Zea mays). Habitat; San Jose, Cal. 

 Amphorophora latysiphon sp. nov. (Figs. 10-13.) 



Alate viviparous female. General color dark olive green. Head, prothorax, 

 thoracic lobes, scutellum, frontal tubercles, first two joints of the antennae, cornicles 

 and Cauda black. Legs yeUowLsh-browTi ; distal half of the femora, distal thii'd of 

 the tibiae and the tarsi darker. Eyes dai-k crimson lake. Antennae on frontal tuber- 

 cles, which bear hairs on their inner angles, half as long again as the body, armed with 

 many hairs; third joint the longest, joints 4 and the filament sub-equal, joints 6 and 

 1 sub-equal, joint 5 a Uttle shorter than joint 4. Sensoria distributed as foUows; — 

 joint 3, 13-17 on the exterior margin in an irregular row; joint 5, 1 apical; joint 6, 1 

 large and 3 small, all apical. General color of antennae yellowish-brown. Lateral 

 tubercles small, bearing a hair. Wings of mediimi size, veins brown, stigma amber- 

 colored, second fork of thii'd discoidal close to the wing apex. Abdomen oval, yel- 

 lowish-green or dark olive, with a large sub-quadrate black spot on the dorsum above 

 the cornicles and a black cross-band on the segment below the cornicles and black 

 lateral spots. Cornicles long, very much dilated for half their length. Cauda 

 ensiform, about one-third the length of the cornicles. Under side of the body and 

 beak oKve green; tip of beak and .sterna black. Beak reaches second coxae. Coxae 

 dusky. 



Measurements: 



Apterous viviparous female. General color of the body light olive green. Eyes 

 dark red. Antennal articulations, prothorax, cauda, and a large quadrate spot on 

 the dorsum of the abdomen dusky to black. Cornicles black. Antennae on large 



