REPORT OF THE STATE ENTOMOLOGIST I913 I5I 



Dr J. B. Smith, who has investigated the hfe history of this 

 species, states that there are at least four and probably five genera- 

 tions annually, the insects occurring at any time from the begin- 

 ning of May to the middle or end of September, the larva requir- 

 ing about 13 days to complete its growth. The tgg has not been 

 observed nor is there any record as to the method of hibernation, 

 though it is probable that this species, like many of its allies, win- 

 ters in an oval, larval cell in the soil. The transformation of the 

 larva to the adult during the warm season at least, occurs within 

 the buds, the larva spinning a white cocoon prior to pupation. The 

 reddish brown adult, with its curved third vein, may be recognized 

 by the 16 antennal segments, the fifth of the male having a stem 

 as long as the basal enlargement, while that of the female has a 

 length twice its diameter. 



Synonymy. This species was first described by Doctor Smith 

 under the name of C e c i d o m y i a va c c i n i i , which designation, 

 we believe, must stand, since Osten Sacken's v a c c i n i i was not 

 applied to an insect but to a vegetable deformation and therefore 

 has no standing in zoological nomenclature. This obviously renders 

 it impossible to accept Professor Johnson's proposed C e c i d o m- 

 yia oxycoccana for the species described by Doctor Smith. 

 There are two European Cecidomyiidae to which the specific name 

 of V a c c i n i i has been applied ; one Dasyneura vaccinii 

 described by Rubsaamen in 1885 and the other Cecidomyia 

 vaccinii described by Kieffer in 1897. The application of this 

 specific name to our American species antedates both of these and 

 should it prove co-generic with either, the name of the European 

 form must be changed. 



Larva. The larva has been described by Doctor Smith as a 

 minute, orange, red or yellow grub about .06 of an inch or a trifle 

 more in length. 



The following descriptions of adults have been drafted from speci- 

 mens evidently deposited by Doctor Smith in the United States 

 National Museum. 



Male. Length i mm. Antennae a little longer than the body, 

 thickly haired, fuscous yellowish; 16 segments, the fifth with a stem 

 about as long as the basal enlargement, which latter has a length 

 about one-half greater than its diameter ; terminal segment some- 

 what produced, broadly rounded distally. Palpi ; the first segment 

 short, stout, irregularly subquadrate, the second a little longer, 

 stout, broadly oval, the third one-half longer, more slender, the 

 fourth about as long as the third, more slender. Mesonotum red- 

 dish brown, the submedian lines probably indistinct. Scutellum 

 fuscous yellowish, postscutellum a little darker. Abdomen reddish 



