880 MOSQUITOES OF NORTH AMERICA 



notum, the other two submedian and begin behind the middle and extend over the 

 scutellum where they unite upon Its hind margin; the lateral stripes extend along 

 the sides of the scutellum; metanotum with a median carina, dark brown. Abdo- 

 men dark scaled, with lateral patches of whitish scales. Legs with the femora 

 predominatingly yellow scaled, the apices black; tibiae yellowish-white scaled, 

 ringed with black, the rings becoming larger towards the apices, first tarsal joints 

 black, maculate with white; on the hind legs the apices broadly white, the second 

 tarsal joint white at the apex and nearly half its base, the third joint broadly white 

 at the base, minutely at the apex, the fourth more narrowly white at the base, the 

 fifth entirely white-scaled; fore and mid legs narrowly white marked. Wings with 

 the veins mostly black scaled; four conspicuous yellowish- white elongated costal 

 spots one of these basal and very long, the others shorter, all involving the first vein. 

 Length, 3 mm. 



One specimen, Tabernilla, Canal Zone, Panama (August Busck, Collector), bred 

 from larvas in the leaves of Bromelias. 



Type. — No. 10864, U. S. National Museum. 



DESCKiPTioif OF Femat.k, Mau!, AND Labva OF Okthopodomtia phyixozoa: 



Female. — Proboscis moderately long, rather stout, slightly dilated towards 

 apex; vestiture black, a pale yellow spot dorsally beyond middle and another 

 close to apex ; labellse short and broad, pale scaled. Palpi over half the length 

 of the proboscis, slender; vestiture black, with scattered yellowish scales and 

 a yellowish ring behind the middle, apices silvery-white scaled. Antennae fili- 

 form, long, the joints subequal, rugose, black, coarsely pilose; second joint 

 thickened towards apex; tori small, deep brown, pruinose, a patch of small 

 white scales on inner side ; hairs of whorls sparse, rather short, black. Clypeus 

 conical, convex, dull chestnut-brown. Occiput clothed broadly with curved, 

 narrowly lanceolate pale yellow scales, ovate yellow ones on the sides with a 

 patch of black ones; margins of eyes silvery-white scaled; cheeks yellowish- 

 white scaled; numerous yellow and black upright forked scales broadly dis- 

 tributed over the nape ; a pair of long yellowish bristles projecting between eyes. 



Prothoracic lobes small, lateral, not prominent, with some small white scales 

 and a few long pale bristles. Mesonotum rich brown, partly clothed with sparse, 

 minute, narrow, curved brown scales and with dorsal and lateral series of long, 

 coarse black bristles ; two submedian narrow bare longitudinal stripes reaching 

 to antescutellar space; at the sides of this space are broad bare areas running 

 forward to beyond the middle and surrounded by lanceolate silver white scales, 

 the outer border of white scales close to lateral margin and continued forward 

 to anterior angles ; a marginal line of pale yellow scales from roots of wings to 

 middle. Scutellum with lanceolate silver-white scales in continuation of the 

 four lines on mesonotum, the median pair confluent on distal part of mid lobe ; 

 each lobe with a group of long golden bristles. Postnotum elliptical, promi- 

 nent, yellowish-brown, nude, with a median longitudinal fine ridge and pale 

 yellowish lateral margins. Pleurae and coxae dark grayish, bearing dark setae 

 and a few patches of small, broad whitish scales. 



Abdomen subcylindrical, slightly enlarged towards apex, depressed, blunt 

 at tip ; dorsal vestiture brownish-black, irregular patches of silver-white scales 

 at lateral margins of segments, particularly on fourth, fifth, and sixth seg- 

 ments ; hairs at apices of segments shining yellowish, those on last four segments 

 long, coarse and abundant; first segment with dark scales and many long pale 

 hairs; venter dark-scaled with scattered yellowish ones, particularly towards 

 base. 



Wings rather narrow, slightly infuscated; petiole of second marginal cell 

 much shorter than its cell, that of second posterior cell rather shorter than its 

 cell; basal cross-vein distant about twice its length from anterior cross-vein; 

 scales of veins broadly lanceolate, the outstanding ones long and narrow ; color 

 dull black, with patches of light yellowish ones, the pale scales arranged in 

 spots as follows: Four elongate costal spots involving costal, subcostal and 



