28o 



NEW YORK STATE MUSEUM 



yellowish, slightly fuscous apically. Wings hyaline, rather narrow, 

 costa pale straw. Halteres yellowish transparent. Legs, coxae, 



Fig. 91 Sackenomyia ac erifoli a; fifth antenna! segmeat and palp, much 

 enlarged (author's illustration) 



femora and tibiae yellowish transparent; tarsi dark brown, the 

 anterior with the basal articulations yellow banded, the posterior. 



'1'% * ''■'i'i^'- 



Fig. 92 Sackenomyia acerifolia; lateral view of ovipositor, much 

 enlarged (author's illustration) 



with the basal tarsal segments yellow; claws stout, simple. Ovi- 

 positor short, the distal part cultriform and with a length equal to 

 the diameter of the last abdominal segment. Type Cecid. 38. 



Sackenomyia viburnifolia Felt 

 1909 Felt, E. P. Econ. Ent. Jour., 2: 290 



This small, yellowish species was reared in ntimbers the latter 

 part of April 1909 from purplish vein swellings on arrowwood. 

 Viburnum dentatum, collected at Magnolia, Mass. , in the 



II 



