REPORT OF THE STATE ENTOMOLOGIST T914 



205 



Phytophaga vio- 

 licola; sixth antennal seg- 

 ment of male, enlarged (origi- 

 nal) 



no turn dark brown, almost 

 clothed with yellowish setae. 



Larva. Length 2 mm, pale yellowish, rather slender. Head 

 small, antennae long, tapering; breastbone bidcntate, the shaft 

 slender. Skin smooth; posterior extremity broadly rounded. 



Male. Length 1.5 mm. Antennae 

 extending to the fourth abdominal 

 segment, sparsely haired, fuscous 

 yellowish or dark brown, fourteen 

 segments, the fifth with a stem about 

 one-third the length of the basal en- 

 largement, which latter has a length 

 twice its diameter; terminal segment 

 with the enlarged part produced, tap- 

 ering, obtuse. Palpi; the first seg- 

 ment slightly subglobose, the second 

 greatly ^enlarged, [pyriform, the third 

 slender, one-half longer than the Fig. 43 

 second, slightly swollen at the basal 

 third, the fourth one-half longer than 

 the third, more slender. Face and 

 mouth-parts fuscous yellowish. Meso- 



black, the submedian lines sparsely 

 Scutellum fuscous yellowish, postscu- 

 tellum dark brown mesi- 

 ally. Abdomen yellow- 

 ish or fuscous yellow- 

 ish, the segments marg- 

 ined posteriorly with 

 fuscous in darker indivi- 

 duals. Wings hyaline, 

 costa dark brown, the 

 third vein beyond the 

 apex, (Plate 1 7 , figure ''5) 

 halteres yellowish transparent; coxae, femora and tibiae mostly dark 

 brown, tarsi a variable fuscous yellow. Claws long, slender, evenly 

 curved. Genitalia; basal clasp segment short, stout; terminal clasp 

 segment short, stout; dorsal plate short, broad, broadly and triangu- 

 larly emarginate; ventral plate short, broad, deeply and roundly 

 emarginate. 



Female. Length 2 mm. Antennae extending to the fourth 

 abdominal segment, sparsely haired, fuscous yellowish, fourteen 

 segments, the fifth with a stem one-third the length of the basal 

 enlargement; terminal segment hardly produced, obtusely rounded. 

 Palpi; the first segment short, stout, subquadrate, the second 

 one-half longer, somewhat enlarged, slightly swollen at the basal 

 third, the third rather long, slender, slightly rounded, the fourth 

 a little longer, somewhat flattened. Face and mouth -parts fuscous. 

 Color characters about as in the opposite sex. Ovipositor a pale 

 salmon, probably longer than the body, the terminal lobes long, 

 slender, acutely rounded. 



Fig. 44 Phytophaga violicola; 

 palpus, enlarged (original) 



male 



