406 JOURNAL OF ECONOMIC ENTOMOLOGY [Vol. 5 



Oviparous female. Slightly woolly, bodj^ spindle-shaped, broadest at the third 



abdominal segment. Head and dorsum of the prothorax greyish-brown. Eyes 



red. Antennae mostly dusky, reaching to the base of the cornicles, on small frontal 



tubercles, joint 3 the longest and in order after that 4, 5, 6, the filament, 1 and 2. 



Rest of thorax and abdomen greenish-yeUow or yellowish-brown, meso- and meta- 



thorax and first five abdominal segments with lateral black spots and transverse rows 



of black or brown spots on the donsum. Cornicles black, shghtly longer than broad, 



their apices glightly enlarged. Cauda rounded, concolorous with the body, with a 



marginal fringe of hairs. Front of head bears four short hairs. Legs green with 



greyish tinge, tarsi and tibial apices black. Beak pale, reaching second coxae. 



Measurements; Body, length 3.50 mm Antennal joints I .171 



" width 1.21 mm II .101 



Cornicles .107mm III 1.014 



Cauda .087mm IV .700 



V .585 



VI .208 



fil. .188 



Male. Not taken. 



The sexual female is abundant on cultivated Birch in November. 

 Locality, Oakland, Cal. 

 Euceraphis flava sp. nov. (Figs. 6, 7). 



Alate viviparous female. Pale yellow, covered with greyish-"white woolly secretion 

 Antennae one-fifth longer than the body, mounted on frontal tubercles; joint 1 twice 

 joint 2 in length and haK as wide again; joint 3 much the longest, almost equaUng 

 4 and 5 combined; joint 5 a httle shorter than 4 and twice as long as 6; the filament 

 four-sevenths as long as joint 6. First two joints encircled with a broken black ring 

 at about half their lengths. Articulations of other joints black. Sensoria distributed 

 as follows: — joint 3, 5-7, oval, transverse sensoria on its proximal fifth; joint 5, 1 

 apical sensorium; joint 6, 1 large apical sensorium and 3 smaller ones. Head and 

 ocelli pale yellow. Eyes dark led. Prothorax pale with two parallel longitudinal dark 

 stripes, one on either side of the dorso-median area. Thoracic lobes and scuteUum 

 pale brown, the latter with a black posterior border. Wings of medium size, stigma 

 narrow, extended, pale grey; veins narrow, bro-mi; sub-costa pale grey. Legs 

 long, thin, pale yellow; tibiae dark brown at the base and apex; tarsi dark brown. 

 Abdomen long and narrow, with three pairs of tubercles on its anterior half, one pair 

 on each of the segments 2-4 inclusive. These tubercles are dark brown, wart-Uke, 

 dii-ected latero-caudad. Cornicles dark brown, as broad at the base as long, situated 

 on a semicircular brownish area. Seventh segment with a pair of smaller dark 

 lateral tubercles. Posterior margin of segment 8 with a brown cross-band. 

 Cauda short, pale, globular. General color of the abdomen hght yellow. Beak 

 pale, tip brown, extending a little beyond the first coxae. Lower side of body pale 

 yellow. 

 Mea.sm-ements; 



