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 diam.eter about 

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



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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-fourths 

 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 



