AQUATIO INSECTS IN NEW YORK STATE 35> 
rufipes Meigen. See hirtipes. 
sericea Linnaeus. See reptans. 
*tamaulipense Townsend, N. Y. Ent. Soc. Jour. 1898. v.7. Tex. 
tarsale Williston. See pulchrum Phillipi. 
tribulatum Lugger, Minn. Agric. Exp. Sta. Rep’t 1896. p.205-7. Prob- 
ably equals vittatum. (p.385. Seq.) 
(Figured but not described) 
*vyenustum Say, Acad. Nat. Sci. Phil. Jour. 3:28; Compl. Wr. 2:51 
Wiedemann, Auss. zw. Ins. 1:71. Ohio, D. C. (Osten Sacken, cata- 
logue). N. J. (Johnson); Can., N. H., N. Y., Mich., Minn., Wyo., B. C., 
Cal., Tex., La., Miss., Fla., (Coquillett); Id. The following synonymy 
is according to Coquillett. 1898. 
1862 molestum Harris, Ins, Inj. to Vegetation. (Not described) 
1870 piscicidium Riley, Am. Ent. 2:367. Mumford N. Y. 
*virgatum Coquillett, U. S. Nat. Mus. Proc. 1902. 25.97. New Mexico. 
*vittatum Zetterstedt, Ins. Lapponica. 1840. p.808. Staeger Groenl. 
Antl. Greenland (Osten Sacken’s catalogue); N. J. (Johnson); Alas. 
(Coquillett 1900); Cal., Kan., Minn., N. Y., Neb. (Coquillett 1898), Id.,. 
S. Dak. The following synonymy according to Coquillett. 
148 decorum Walker, List. Ins. 9.112. Hudson Bay Ter. 
1898 argus Williston, N. Am. Fauna, no. 7, p.258. Cal. 
KEY TO SPECIES OF SIMULIUM 
Larvae 
1 Mature larva 6 or 7mm long, with the dorsal surface of the 
head nearly white; the rays of the fan number about 380. 
Larva from Santa Cruz mountains, Cal. [p.387]. 
Head usually brown; rays of the fan usually 40 or more............ (2) 
2 The top of the head with six black blotches or spots. Larvae 
from New Mexico [p.386]. 
TON Six MATS SOLS. oc os ci ea diese 0'% sn'n'e ve see eine aiuele Walees wale (3) 
3 The caudal blood gills are three simple papillae: ..............eeee. (4). 
iievruree main branches are again subdivided. ...5....i.sreevensee (6) 
4 The middle tooth of the labium is simple and pointed, labium 
with six pairs of setae on its ventral surface [pl.35, fig.2].vittatum 
mommnadic tooth at least: is trifld; .. jesse a seis dw rec CudanseeWeaees (5) 
5 All marginal teeth of the labium except the outer pair are 
UPN OMI cc UPL Sel cy rahe ica bE ahasie aun) Coty eae ew) Gand Mi AA Cate es hirtipes 
The middle tooth only is trifid; ventral surface with three 
wairs: of setae [pl33, fig.8]...... pecuarum (invenustum) 
6 Full grown larvae 10-12mm in length, black in color, its 
labium with an elongate middle tooth [pl.36, fig.3]....... pietipes 
Paler larvae less than 10mm in length. . bia tiu i eiale Glo Mee. he eee 
7 No setae on the last joint of the fuemary Pa a middle 
tooth of the labium longer than the two lateral ones, four 
pairs of setae on its ventral surface. The pair of apical 
setae of the mandible not differentiated from the hairs 
POD OOO erie TMG MOOK. vic sane beet os be bbe 00nd po meridionale 
