126 



NEW YORK STATE MUSEUM 



Fig. 35 Dasvneura ps'e u'da'c a c'ia e , '^ female wing.'^much 

 enlarged (Original) 



transverse row of pale, circular spots, which are evidently con- 

 nected on one side at least by a similar longitudinal row as in the 



case of Rhabdo- 

 phaga salicis 

 Schrk. Palps com- 

 posed of five distinct 

 segments, a short, 

 basal one, the sec- 

 ond a little longer, 

 the third and fourth 

 fully half longer 

 than the second and 

 the fifth about half 

 longer than either 

 the third or fourth, 

 all sparsely ornamented with irregularly placed, stout setae; mouth 

 parts rather prominent. Eyes large, coarsely granulate. Mesono- 

 tum light brown with indistinct grayish vittae and with a sparse 

 clothing of fine, yellowish hairs. Scutellum prominent, crowned 

 with a sparse row of golden yellow setae, dark brown anteriorly, 

 golden yellow posteriorly; postscutellum golden yellow. Abdomen 

 dark brown or reddish, sparsely ornamented with rather coarse 

 golden yellow setae, pleura yellowish. Wings hyaline sparsely 

 clothed with rather coarse, curved hairs ; base of costa a little more 

 thickly clothed and with a few linear scales ; subcosta rather indis- 

 tinct, uniting with costa at the basal third; first longitudinal vein 

 well marked, joining the border just before the apex, anal vein 

 indistinct. Halteres with a long, yellowish pedicel, apex greatly 

 enlarged, elongate, fuscous. Legs pale yellowish clothed with a 

 silvery white pubescence, first tarsal segment very short, second 

 much prolonged, third less 

 than one half that of the sec- 

 ond, fourth and fifth each 

 two thirds the length of the 

 preceding segment. Claws 

 simple, empodium well de- 

 veloped. Terminal abdo- 

 minal lobes slender, finger- 

 shaped. 



Male. Antennae composed 

 of 14 segments, all except the 

 basal two and the 14th pedi- 

 cellate distally, the apical 

 two thirds of the large basal 



portion of each irregularly Fig. 36 Dasyneura pseudacaciae, two an - 

 ornamented with conspicuous te""^! segments of male, much enlarged (Original) 



setigerous tubercles bearing long, slightly curved setae two or three 

 times as long as the width of the segment, the distal third of the 

 latter smooth, narrow, forming a pedicel. There is a narrow, dis- 

 tinct though inconspicuous, transverse, white spotted band at the 



