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AQUATIC INSECTS IN NEW YORK STATE 495 
Ventral view of head. x40. e Labium. 2 Maxillae 
Lateral view of head, larva. a Antennae. b Filaments of third meta- 
mere of Meinert. c Leaflike appendages. J Labrum. f Fans. 
m Mandibles. «# Mavxilla 
Swimming paddles of pupa. x15 
Anal segment of larva. x40 
Head of female. x15 
Genitalia of male. x40 
Wing of female. x15. C Costa. Sec Subcosta. R Radius. M Media. 
Cu Cubitus. A Anal 
Wing of male. x15 
Wing of C. albipesn.sp. x15 
PLATE 40 
Corethrella brakeleyi Coquillett 
Full grown larva, dorsal view. x25. a Antenna. 6b Lateral sclerite of 
the head showing the spines. d Dorsal sclerite of the head 
Ventral view of larval head. x25. Ir Labrum. md Mandible. 0b Lat- 
eral sclerite of the head. J Labium 
Antenna of larva. x110 
Labrum of larva. x110 
Larval mouth parts, ventral view. x110. md Mandibles. ma Maxilla: 
4 Ventral lobe of the maxilla (perhaps cephalic prolongation of 
the head sclerite; 7 Labium 
Dorsal view of left mandible of larva. x110 
Fifth tarsal joint and claws of hind foot of adult male. x190 
Antenna of adult male. x37% 
Wing, denuded of hair. Female. x48 
Last four abdominal segments of pupa. x3714 
Culex sylvestris 
Long claws of middle foot of male. x190 
One of the claspers of the male. x48 
PLATE 41 
Pelorempis n. gen. 
Larva, ventral view. Thorax and abdomen diagrammatic. x7 
Head of same, dorsal view. x7 
Mouth parts, ventral view. x40. 7 Labium. «# Maxillae. m Mandible 
Dorsal aspect of breathing apparatus on the eighth segment. x20. 
Ss Spiracle 
Dorsal aspect of left mandible. x40 
Dorsal aspect of labrum 
Swimming paddles of the pupa. x7 
Pipe. «x7 
A seale from upper surface of the labrum 
Head of female 
Lateral aspect of head. Female 
Fore tarsal claw of female 
Fore tarsus of female 
Wing of female. O Costa. Sc Subcosta. R Radius. M Media. Cu 
Cubitus 
