Vol. XXIV] ENTOMOLOGICAL NEWS. 175 



Though the adult worm is common at Ithaca I have not lo- 

 cated the immature stage as yet. 



These are but a few illustrations of forms that are available 

 and which may be studied without complicated apparatus or 

 special training beyond that gained in the course of the work. 

 As an aid in beginning such study, demonstration specimens of 

 a few of the blood parasites may be purchased. Some of these 

 are to be obtained from the Western Biological Supply Co., 

 Station A, Lincoln, Nebr., and a larger assortment is handled 

 by W. Watson & Sons, 313 High Holborn, W. C, London. 

 Helpful as such specimens may be, no one who has once 

 examined the living parasites or his own preparations, will be 

 satisfied to depend on the meager opportunities for purchasing 

 material of this nature. 



Cystodiplosis eugeniae n. sp. (Dipt.). 



By E. P. FELT, Albany, N. Y. 



The midges provisionally referred to this genus were reared 

 in April, 1912, from hairy leaf galls on Eugenia buxifoli, col- 

 lected by Dr. E. A. Schwarz at Key West. The transforma- 

 tions are completed within the gall, since several protruding 

 exuviae were observed. The galls occur in irregular clusters 

 of 10 to 15 or more upon the upper surface of the leaves. 



Gall. Irregularly spherical or somewhat elongate, monothalamous, 

 with a diameter of about 1.5 mm. The walls of the gall are moder- 

 ately thick, quite high and exteriorly thickly clothed with long, crinkly, 

 yellowish or reddish brown hairs. 



Exuviae. Length 2.5 mm., whitish transparent. Antennal cases 

 short; thoracic horns rudimentary; leg cases extending to the 7th and 

 8th abdominal segments, the wing cases to the third. Dorsum of the 

 abdomen thickly and uniformly clothed with stout, chitinous points. 



Male. Length 1.5 mm. Palpi composed of one minute oval segment. 

 Mesonotum and scutellum dark brown. Abdomen mostly light red- 

 dish brown and sparsely clothed with yellowish setae. Genitalia slightly 

 darker. Wing, narrow, length 2.4 mm., width .9 mm. ; the subcosta 

 unites with costa at the basal third, the third vein at the apex, the fifth 

 is well developed basally and obsolescent, including the branches, apic- 

 ally. Legs yellowish brown, the femora slender and slightly longer 

 than the more slender tibiae ; claws very long, slender, simple, the 

 pulvilli about one-half the length of the claws. Genitalia: basal clasp 

 segment greatly swollen, much resembling that of Asphondyiia; terminal 



