S6 NEW YORK STATE MUSEUM 



dark brown. Scutellum reddish brown, postscutellum fuscous yel- 

 lowish. Abdomen pale salmon, fuscous basally, yellowish apically. 

 Wings hyaline, costa pale yellowish, subcosta uniting with the mar- 

 gin at the basal third, the third vein, curving distally, just before the 

 apex, the fifth simple and disappearing just before the basal half; 

 fringe long, slender. Legs a nearly uniform yellowish brown, the 

 tarsi quadriarticulate, the first segment short, about >4 longer than 

 the second, which latter is distinctly longer than the third, the fourth 

 a little longer and stouter than the second ; claws long, slender, 

 simple, the pulvilli nearly as long as the claws. Ovipositor short, 

 the lobes long, slender, triarticulate, the basal segment stout, sub- 

 triangular, the second longer, subrectangular, the third narrowly 

 oval, all sparsely setose ; on the venter of the seventh abdominal 

 segment there is a submedian pair of obpyriform, chitinous ap- 

 pendages, possibly orifices of odoriferous glands. 



Larva (presumably M. americana). Length 1.25 to 4 mm. 

 Young larvae yellowish or whitish transparent, the larger larvae 

 whitish or reddish orange. The large, white larva is rather stout, 

 tapering somewhat at both extremities and frequently nearly filled 

 with white adipose tissue. There are 13 body segments. The head 

 (pi. 26, fig. 2) is small, triangular and frequently retracted within 

 the body segments. The palpi are short, stout, biarticulate and 

 arising from the anterior portion of the head, the tip of the head 

 usually fuscous. The irregularly bilobed ocular spot is usually 

 seen as a fuscous mass in the third segment. The posterior ex- 

 tremity tapers to an obtuse apex bearing a series of 6 stout, fre- 

 quently recurved, cuticular processes. The body segments are 

 banded ventrally (pi. 29, fig. 2) with closely set series of short, 

 stout spines pointing backward, these spines being most strongly 

 developed upon the anterior body segments, especially the third, 

 fourth and fifth (pi. 22). 



The quiescent larva, easily recognized by its somewhat stiff atti- 

 tude, due probably to the relaxation of the transverse muscles 

 girdling each segment, may be whitish and contain semitransparent 

 embryos, easily seen by reflected light (pi. 23, fig. i) or yellowish 

 and filled with nearly mature embryos (pi. 24, fig. i). 



The young larvae are 1.2 to 2 mm. long and present all the char- 

 acters described above for the larger white larvae except that they 

 are yellowish or yellowish transparent, usually more slender and 

 appear to have a relatively much better developed musculature. 



Musculature. The muscles are especially well developed In^ the 

 young larvae. They consist of a series of longitudinal and oblique 

 muscles extending from the anterior to the posterior margins of the 

 body segments. There are a number of transverse, girdling mus- 

 cular bands, which are particularly well developed at the union of 

 the body segments, though several distinct broad bands may be 

 observed near the middle of each segment. 



