AQUATIC INSECTS IN NEW YORK STATE 389 — 
Ficalbi, E. (1899) Venti specie di Zanzare. Soc. Mnt. Italiana Bul. 
—— (1896) Rey. sistematica d. fam. delle Culcidae Huropee. Soc. Ent. 
Ital. Bul. 
This contains an extensive bibliography. 
Giles, G. M. (1900) Gnats or Mosquitoes; a compilation of the descrip- 
tions of the mosquitoes of the world. 
Howard, L. O. (1900) U.S. Dep’t Agric. Cir. 40, ser.2 
(1900) U.S. Dep’t Agric. Div. Ent. Bul. 25, n. s. 
— (1901) Mosquitoes. McClure, Phillips & Co. 
This gives the most complete account we have of the biology of mosquitos. 
Meinert, F. (1886) De eucephale Myggelarver. in Vidensk. Selsk. Skr., 6. 
Raekke, naturvidensk. og math. Afd. 3.4. 
Contains about 60 quarto pages and two plates on the biology and structure of the 
Culicidae. 
Nuttall & Shipley (1901) Structure and Biology of Anopheles. Jour. of 
‘Hygiene, 1:75. 
Osten Sacken, C. R. (1868) Am. Ent. Soc. Trans. 2:47, and Western Dip- 
tera, p.191 (1877) 
Smith, J. B. (1902) Ent. News. 13:268 and 299. 
(1902) N. Y. Ent. Soc. Jour. 10:10. 
Theobald, F. V. (1901) Monograph of the Culicidae. 2v. 
With atlas of 37 colored and 5 photographic plates. 
Weissmann, A. (1866) Die Metamorphose der Corethra plumi- 
cornis. 
AlsG papers in the reports of the various state experiment stations, by Lugger, 
Osborn. Herrick, and others. 
The mosquitos are small to medium sized flies, characterized 
by the projecting proboscis (sometimes lobed) and by the plu- 
mose antennae of the male. The head is small, round; eyes 
reniform, and ocelli are wanting. The antennae are threadlike, 
composed of 15 joints, counting the disklike base; the first 
joint is thick, the following joints small, round and beset with 
whorls of hairs, forming in the male a long, dense plumosity; 
the last two joints in the male are slender and bare, or nearly 
so. The thorax is ovate, arched, but not projecting over the 
head, without transverse suture, scutellum narrow; metanotum 
arched. Abdomen jong and narrow, somewhat flattened, com- 
posed of eight segments; male genitalia prominent, ovipositov 
short, legs long and slender, the coxae not elongated; the tarsi 
long. Wings long and narrow, with numerous veins; the hind 
wargin fringed, the costal vein extending all around the wing, 
and in all known Ainerican forms the veins are covered with 
scales. Venation as in the figures. 
The larvae are known as “ wrigglers.” The head is fully 
differentiated and usually has eyes; the mouth is usually thickly 
