AQUATIC INSECTS IN NEW YORK STATE 391 
10 With two anal blood gills; the two lateral combs of the air 
tube wanting. Small species; found in water in the pitcher 
“ UEVESE i eset Pa es REN Re Aedes (Smithii) 
With four blood gills; with stellate hairs on the abdomen. 
PES OCICS 6 ois cos 3 cae oe oo wes Uranotaenia (sapphirina) 
The southern genera Toxorhynchites, Megarrhinus and Con- 
chyliastes are not included in the above table; their larvae have 
never been described as far as I am aware. 
Pupae 
1 Swimming paddles, two pointed lobes [pl.40]......... Corethrella 
PRAMAS LOUNGE... 6.) 020d 52 cc nse e ne scene ceeeee tebe nes (1a) 
la The respiratory tube of the thorax spindle-shape, pointed at 
gt aad eR Pe Tr A a oy an o8 oe ke GUEAG Os hee! sac BIL AD 9.16) 008 Gk sha 6, BS (2) 
PPCrer Mn MMie OF TUM pPet-SWADE. o........ 0. cccleccesedsccdeodesseas (3) 
2 Both inner and outer margins of the swimming paddles with 
reinforcing ribs, but without spine at the apex......... Corethra 
Only the middle rib present; last segment short, seventh 
segment considerably longer than either the sixth or 
LEVER 2 sl oda ORR Ieee ee me Mochlonyx (Europe) 
3 Apex of swimming paddle ending in a small spine.................. (5) 
map Lew. Cilia. O% SHOE MAILS. ... 6c sete cd se esee ee eee ee tees’ (4) 
4 Small species 2 or 3 mm in length; last two pat SH with 
a thick brush of hairs on each side... ........ Aedes (smithii) 
Large species, 7 or 8 mm in length.............00008. Psorophora 
nebatce Species at least-'S mm-in length. ....0..6.c cc cece ce esc cs ances (6) 
Rigg@erAre. OF sinall SiZed SPCCICS. 130000 cde cece aes escsce seen acenavis (7) 
6 Apex of swimming paddle ending in a short, sharp spine.... 
Pelorempis gen. nov. 
Apparently without a spine (?), with a pair of stellate hairs 
Cu ibe frst abdominal S€ZMent... 1... ecec ce ee eens Psorophora 
7 Thoracic breathing tubes much elongated, about 12 times as 
long as wide. Abdomen with a number of stellate hairs. . 
Uranotaenia (sapphirina) 
@ubes not eclongate............ ee he eee eae eS MEOe gan, Sere te (8) 
Bene AbOUL AS Wide 48 lONE..... 6. cece ass bee de vews ceed Anopheles 
Seem SVN HEAT NW LCLC i's o's: ays. 0 ree #0. 6 a epeie wc ecete veut boheme aime vw awe Culex 
Imagos 
ine coposeis shor, not much longer than the Whead.......ccecscreucens (2) 
Proboscis elongate, longer than the head and thorax taken 
PMU Ss nite gh Aree a a ae 08 68 ee a Nae RMN eke its dw ai BF: Gs a Rega ek a eee (4a) 
2 Metatarsus longer than the following joint. .......ccesccccecscceues (3) 
Metatarsus shorter than the following joint..Mochlonyx (Wurope) 
3 Species less than 4 mm in length; tarsal claws simple..............(4) 
Large species, 10 or more in length; tarsal claws bifid...... 
Pelorempis gen. noy. 
4 Antennae verticilliate with hairs (i. e. in whorls)......... Jorethra 
Antennae wholly covered with hairs, legs densely hairy.... 
Corethrella 
