REPORT OF THE STATE ENTOMOLOGIST I9I4 2I3 



and its ravages compel the attention of all. The popular name was 

 bestowed in the belief that it was brought into this country in pack- 

 ing or straw shipped to the Hessian soldiers then stationed on Long 

 Island. There is a strong probability that this is true, though it 

 can never be proved beyond question. 



An economic discussion of this species is unnecessary here and 

 we have given therefore only technical descriptions of both sexes. 



Male. Length 2 mm. Antennae one-fourth longer than the body, 

 rather thickly haired, light brown; 18 to 20 segments, the fifth with 

 a stem three-fourths the length of the cylindric basal enlargement, 

 which latter has a length two and one-half times its diameter, ter- 

 minal segment reduced, narrowly oval. Palpi; first segment irregu- 

 larly obconic, the second subquadrate, the third one-third longer, 

 more slender, the fourth about twice the length of the third. Ab- 

 domen reddish brown. Mesonotum shining dark brown, the sub- 

 median lines indistinct, the posterior median area a variable yellowish. 

 Scutellum fuscous yellowish, postscutellum fuscous. Abdomen 

 reddish brown, with a narrow, broken submedian line, incisures 

 and pleurae whitish. Wings hyaline, costa light brown, the third 

 vein at or just beyond the apex. Halteres yellowish basally, fuscous 

 apically. Legs a variable fuscous yellowish; claws long, slender, 

 evenly curved, minutely unidentate, the pul villi longer than the 

 claws. Genitalia; basal clasp segment long, stout; terminal clasp 

 segment long, stout; dorsal plate broad, deeply and triangularly 

 emarginate, the lobes narrowly rounded; ventral plate short, broad, 

 deeply and triangularly emarginate, the lobes rather long, broad, 

 narrowly rounded. Harpes long, broadly rounded, with an irregular 

 group of unusually long, subquadrate, chitinous spines. (Plate 18, 

 figure i). 



Female. Length 3 mm. Antennae extending to the fourth 

 abdominal segment, sparsely haired, light brown; 17-19 subsessile 

 segments, the fifth with a length about two and one-half times 

 its diameter; terminal segment slightly reduced, narrowly rounded 

 apically. Palpi; first segment irregularly obconic, the second 

 narrowly oval, the third a little longer, more slender, the fourth 

 about twice the length of the third. Mesonotum dark brown, 

 the submedian lines indistinct. Scutellum and postscutellum 

 dark brown. Abdomen reddish brown, the incisures and pleurae 

 yellowish red. Wings hyaline, costa dark brown, venation as in 

 the opposite sex. Halteres pale yellowish. Legs fuscous yellowish; 

 claws stout, evenly curved, simple, the pulvilli longer than the claws. 

 Ovipositor short, stout, the terminal lobes short, broadly rounded. 



Phytophaga rigidae O. S. 



1845 Fitch, Asa. Am. Quar. Jour. Agric. & Sci., i :263-69 (Cecidomyia 

 s a li c i s) 



1862 Osten Sacken, C. R. Mon. Dipt. N. A., i :i89 (Cecidomyia) 



