REPORT OF THE STATE ENTOMOLOGIST I915 



III 



pubescence. It becomes a rosy red in part with the advance of 

 the season. It is succulent when young and is credited with possess- 

 ing a pleasant subacid flavor. The fully developed gall usually has 

 8 or 9 longitudinal ribs somewhat like those of a muskmelon, though 

 smoother. A section reveals an outer fleshy wall and within a hard, 

 woody interior containing a number of longitudinal cells arranged 

 in two tiers, the upper tier of cells being frequently twice as long 

 and more distinctly separated by a hard fiber than the lower. 



Larva. Length 3 mm, rather stout, pale orange and recognizable 

 by the heavily chitinized, armed, irregular area at the posterior 

 extremity (figure 8). The head is small, with a diameter about 

 one-fiith that of the body; the antennae short, stout, subcylindric ; 



"til 



Fig. 8 Schizomyia pomum. Posterior extremity of larva, ' enlarged 



(original) 



breastbone short, stout, bidentate; the segmentation is rather dis- 

 tinct and the surface of the skin is minutely papillate. The posterior 

 extremity is broadly rounded and with an irregular, heavily chit- 

 inized area, the latter bearing a pair of submedian, irregular, chit- 

 inous processes. A broadly triangular, chitinous ventral plate, 

 rounded posteriorly, is observable in some specimens. 



Male. Length 1.75 mm. Antennae nearly as long as the body, 

 sparsely haired, light brown; 14 segments, the fifth cylindric, with 

 a length about five times its diameter. Palpi; the first segment 

 short, stout, irregularly subquadrate, the second narrowly oval, with 

 a length about two and one-half times its width, the third fully 

 twice the length of the second, slender, the fourth three-fotirths 

 longer than the third, slender.- Mesonotum dark brown, the sparsely 

 haired submedian lines and lateral and anterior margins fuscous 

 yellowish. Scutellum reddish yellow, postscutellum yellowish. 

 Abdomen sparsely haired, mostly fuscous yellowish, the basal seg- 

 ment and genitalia fuscous. Wings hyaline, costa dark brown. 

 Halteres yellowish basally, fuscous apically; coxae and femora 



