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NEW YORK STATE MUSEUM 



Fig- 46 Janetiella asplenifolia; gall on sweet fern leaves, nearly- 

 natural size (original) 



Gall. Length 2 to 4 mm, shining and often red- 

 dish. It is a fleshy fold near the midvein, fre- 

 quently producing curling or even recurving of the 

 leaf. (Plate 9, figure 3.) One or more larvae in- 

 habit the deformity. 



Male. Length 2 mm. Antennae nearly as long 

 as the body, sparsely haired, light fuscous yellowish; 

 15 segments, the fifth with a stem about three- 

 fourths the length of the basal enlargement, which 

 latter has a length about one-half greater than its 

 diameter; the terminal segment produced, narrowly 

 oval. Palpi; the first segment short, stout, sub- 

 •^ quadrate, second a little longer, more slender. 

 Fig. 47 Janeti-the third one-half longer than the second and the 

 ell a a spleni- fourth longer and more slender than the third, 

 f 0.1 i a; fifth an- Mesonotum dark brown, the narrow submedian 

 tennal segment of lines and posterior median area yellowish. Scutellum 

 male, ;\ enlarged and postscutellum fuscous yellowish. Abdomen a 

 (original) deep orange yellow, ^the distaL segments paler, the 



