128 



NEW YORK STATE MUSEUM 



tender maggots which were otherwise without protection and fed on 



the nearly exposed leaf surface. 



This species, apparently unknown, may be recognized by the 



following characteristics: 



Female. Antennae fuscous 

 yellow, about two thirds the 

 length of the body and com- 

 posed of 14 segments, the first 

 short, subglobular, the second 

 stout, elongate and the 3d to 

 the 14th inclusive, pedicellate 

 distally. A typical segment has 

 the basal two thirds cylindric, 

 broadly dilated and bearing a 

 basal and subapical whorl of 

 long, stout setae, an intervening 

 space thickly ornamented with 

 irregularly placed black, chitin- 

 ous spots, and on focusing, 

 showing pale, transverse and 

 longitudinal lines inclosing cir- 

 cular areas much as in R h a b - 

 dophaga salicis Schrk. 

 The distal third of the segment 

 is slender, smooth, with the 

 apex slightly expanded. Palpi 

 long, composed of five seg- 

 ments, the basal two short, 

 stout, subequal, the third a 

 little longer, the fourth and 



Fig. 39 Bremia tecorniae.twoantennalseg- f^f^h OUC half lono:er, SUbcQUal, 

 ments of female, much enlarged (Original) , , ,. ^ - ^ . 



slender ; all sparsely ornamented 

 with stout setae. Mandibles distinct, broad and with a number of 

 subapical, apical and lateral, stout setae. Eyes large, jet-black, 

 rather coarsely gran- 

 ulate and confluent. 

 Thorax yellow with 

 lateral, yellowish, 

 fuscous, mesonotal 

 elevations at the base 

 of the wings, and 

 with fuscous, chitin- 

 ous, rounded eleva- 

 tions above the base 

 of the somewhat fus- 

 cous anterior coxae. 

 Abdomen lemon-yellow, slightly fuscous apically, terminal lobe 

 slender, tapering to a minute "rounded apex. Wings semitransparent 

 with iridescent reflections, membrane rather thickly clothed with 



^- 



^ ^ V J-\ ^~ 



^^ A V 





^L^-V^^^^-^^x- 



Fig. 40 Bremia tecomiae, female wing, much enlarged 

 (Original) 



