854 MOSQinTOES or NOETH AMERICA 



Description or Femau;, MiXE, and Laeva op Aedes albonotata: 



Female. — Proboscis rather long and slender, subcylindrical, uniform ; vesti- 

 ture black ; setae minute curved, black, those on labellse more prominently out- 

 standing. Palpi about one-fifth the length of the proboscis; vestiture black, 

 tips narrowly silvery-white. Antennae filiform, the joints subequal, rugose, 

 coarsely pilose, brown; second joint slightly swollen towards apex; tori sub- 

 spherical, with a cup-shaped apical excavation, luteous, brown within ; hairs of 

 whorls moderate, brown. Clypeus elliptical, prominent, dark brown, nude. 

 Eyes black. Occiput clothed entirely with flat appressed scales, those along 

 middle line narrower and longer, brownish-black, a rather broad, silvery-white 

 median line extending forward between eyes and apically produced into a tuft 

 of long scales projecting between tori ; sides and cheeks white, inclosing a large 

 black spot near ocular margin; many erect, forked brownish-black scales well 

 back on the nape ; bristles along margins of eyes black, none projecting between 

 eyes. 



Prothoracic lobes elliptical, remote dorsally, luteous, brown on upper angle, 

 clothed with broad silvery-white scales in the middle and with dark bristles. 

 Mesonotum brown, clothed with narrow, curved, very dark bronzy-brown scales 

 and with four longitudinal, evenly spaced, narrow lines on the disk, the 

 median pair of golden and silver scales intermixed and extending from 

 anterior margin to antescutellar space, followed by a median silvery line 

 across antescutellar space, a narrow golden line at eitheir side of ante- 

 scutellar space extending forward to middle of disk, a narrow lateral mar- 

 gin of broadly elliptical silvery-white scales from base of wing to anterior 

 angles, a small median white patch on anterior margin; bristles over roots of 

 wings deep brown. Scutellum trilobate, brown, clothed with broad brownish- 

 black scales, middle lobe with a central line of silvery-white scales, each lobe 

 with a group of deep brown bristles. Postnotum elliptical, prominent, brown, 

 nude, with a slight pniinosity. Pleurae brownish, coxae luteous, clothed with 

 patches of flat elliptical silvery-white scales ; bristles small, pale. 



Abdomen subcylindrical, abruptly tapering posteriorly, sixth and seventh 

 segments apically expanded beneath ; dorsal vestiture of dull blue-black scales, 

 an indistinct, dull yellow, median spot at bases of third, fourth and fifth seg- 

 ments; a series of large, lateral, segmental, basal, subquadrate silvery- white 

 patches, produced and showing in dorsal view on seventh and eighth segments ; 

 first segment black scaled, with many fine pale hairs ; venter yellowish silvery- 

 white scaled, with apical black segmental bands. 



Wings moderate, hyaline; petiole of second marginal cell about one-third as 

 long as its cell, that of second posterior cell only a little shorter than its cell ; 

 basal cross-vein more than its own length from anterior cross- vein ; scales dull 

 brown, costa with a blue reflection, the outstanding scales broadly linear, denser 

 and broader on second vein. Halteres whitish, with dark knobs. 



Legs slender, rather long; vestiture black, marked with white; femora pale 

 at base and beneath on basal half; knees silvery- white, broadly on hind legs; 

 tibiae entirely blue-black, front pair with a silvery spot dorsally at apex; tarsi 

 of hind legs with a broad white ring at bases of first three joints, that of third 

 joint very broad, involving three-fourths of joint ; middle tarsi with white rings 

 at bases of first two joints ; fore tarsi with a white ring at base of second joint. 



Length : Body about 3.6 mm. ; wing 3 mm. 



Male. — Proboscis straight, rather long and slender, black scaled. Palpi as 

 long as the proboscis, slender, the terminal joints not enlarged and with a few 

 long bristles only; vestiture black, a white ring at middle of long joint and at 

 bases of last two joints. Antennae plumose, the last two joints long and slender, 

 rugose, pilose, black, the others short, pale, ringed with black at insertions of 



