140 NEW YORK STATE MUSEUM 



ened; the claspers brownish yellow, MS long as the last segment; 

 the hair of the abdomen pale yellow or light brown, very dense 

 and long. Legs unicolored, pale brownish yellow; the coxae 

 alone somewhat darker; the fore tarsi not hairy; the fore meta- 

 tarsus about one fourth shorter than the tibia; the fore femora 

 upon the flexor surface, as also the whole of the hind legs with a 

 moderately long, delicate, yellowish hair. Halteres pale yellow 

 or whitish. Wings hairy, hence grayish, clouded and spotted; 

 the most conspicuous spot 'Covers the crossveins, another spot 

 nearer the wing tip between the radius and media, another below 

 the crossveiu not far from the posterior margin; the humeral 

 crossvein is black ; the media is bent downwards a little just be- 

 fore its ending at the wing tip ; the fork of the cubitus begins at 

 the M-Cu crossvein and is therefore sessile. Translation from the 

 Dutch of Y. d. Wulj). Wisconsin. 



4. Ablabesmyia carnea Fabricius 



1805 Cb. ironomus Fabr. Syst. Ant. 41, 1C 



1818 T a n y p u s Meigen. Syst. Beschr. 1 :G7, 21 



1850 T a n y p u s Zetterstedt. Dipt. Scand. 9 :3620 



1864 T a n y p u s Schiner. Fauna Austriaca. 2 :G20 



1877 T a n y p u s V. d. Wulp. Dipt. Neerlandica. p.304 



1823 Tan y pus albipes Fries. Monogr. Tanyp. Suec. 1C, 11 



(P1.20, figs. 6, 7, 8) 







Larva. Larvae from Ithaca, N. Y. Reddish yellow. Head 

 about three times as long as wide, the antennae slender, three 

 times as long as the mandible, the first joint three-fourths of the 

 total length. The labrum smooth above, hairy beneath, with 

 two short and two more elongate, very slender-jointed papillae. 

 Mandibles slender, apical tooth black tipped, elongate, lateral 

 teeth small and irregular. Maxilla with a stout cylindrical 

 palpus, having a crown of 5 or 6 apparently jointed terminal 

 joints. The marginal teeth of the labium are rounded, of equal 

 size and five in number; those of the hypo-pharynx are minute, 

 rounded and also of equal size (fig. 6, h). The body has a very 

 few scattered minute setae. Caudal appendages as shown in 

 pi. 19, fig.10. The claws of the posterior legs are very slender, 

 and the slender, central ones apparently without a basal promi- 

 nence. Anterior claws quite numerous and slender, not pecti- 

 nate. 



Pupa. Yellowish; length 4 mm. Respiratory trumpet cucum- 

 ber shaped with basal end somewhat curved and tapering (pi. 20, 

 fig.7); near the base of each is an arcuate transverse line of 

 short, pale, blunt tubercles. Abdominal segments nearly devoid 

 of setae. The caudal fin (pl.20, fig.8) consists of two pointed 



