MOSQUITOS OR CULICIDAE OP NEW YORK STATE 363 



mere of Meinert. Leaflike appendages long, terminated by an 

 extremely long, slender spine, followed by an irregular series of 

 slender ones along the oblique posterior border, anterior margin 

 gently rounding to a rather broad base. Maxillae irregularly 

 rhomboidal, maxillary palpus tapering gradually, nearly straight. 

 Labrum subquadrate, distinctly wider at the base and with the 

 apex slightly curved and thickly clothed with rather coarse hairs. 

 Mandibles with three fine and several minor teeth, the mandibular 

 fans consisting of about 16 long, spinelike processes. Eyes and 

 air sacks of thoracic and seventh abdominal segments deeply 

 pigmented. Ventral brush of terminal segment composed of about 

 26 stout hairs. Apical ventral plate fulvous, bearing a stout, 

 curved, chitinous hook pointing anteriorly. Lateral posterior 

 margin of terminal segment bordered with a row of stout, curved, 

 comblike processes, each with a conspicuous tooth at its base. 

 Just behind these and apparently arising from the same chitinous 

 ridge, there are long, curved, corrugated, blunt, ribbed processes 

 which appear to project backward. Extreme dorsum of last seg- 

 ment with four conspicuous plumose bristles. Anal gills long, 

 tapering rather irregularly to acute points. 



The pupa remains upright in the water or resting on the bottom, 



rarely coming to the surface. It is yellowisJi at first, becoming a 



dark green with black margined segments. This species has been 



taken by Dr Dyar, in British Columbia and is recorded by Osten 



Sacken from Maine, California and Alaska. 



Sayomyia albipes Johans. 



PL 47,' flg-. 2 



Larvae of this species were met with at Bath-on-Hudson June 



16, a male emerging the 23d, and we give herewith descriptions of 



the hitherto unknown male, pupa and larva. The type of this 



species was taken by Mr Johannsen at Ithaca, in August 1901, 



and his description of the female follows : 



Female. Entire insect pale yellow in ground color; head and 

 antennae wholly pale yellow; dorsum of thorax with three longi- 

 tudinal stripes, pale buff in color, the lateral ones abbreviated 

 anteriorly, the median one posteriorly, the latter divided longi- 

 tudinally by a pale yellow line. These stripes all narrowly mar- 

 gined with brown, and on the anterior and outer margins of the 

 lateral stripes are a few tiny black specks. Scutellum with a pale 

 buff posterior margin; pleurae yellow, sparsely sprinkled with 

 small, irregular black specks; abdomen yellowish white beneath. 



