792 MOSQUITOES OF XORTH AjVEERICA 



side, spine as long as the body of the scale. Air tube 2X1, deeply chitinized except 

 just below the apex, subconical, slightly swollen above the base. Rows of pecten 

 teeth insertions reaching up half the tube. Teeth evenly spaced, about twelve in 

 number, each with several small denticles on the inner side; these are progressively 

 smaller from above downwards. A pair of large compound hairs at the level of the 

 upper pair of teeth. Band ringing anal segment about two-thirds as long as broad; 

 ventral group of hair tufts (about ten pairs) from a separate barred area; dorsal 

 group composed of a pair compound and simple hairs. Anal gills unequal, tapering; 

 ventral pair a little longer than the longest ventral hairs, dorsal pair one-third as 

 long again as the ventral pair. 



Observations. The larva of this species superficially closely resembles the fore- 

 going [Aedes auratus Grabham], and still more those of A. hemisurus, Dyar and 

 Knab. The last named has no rows of spines on the antenna, the comb scales are 

 without spines, having only setae, and the compound hairs in the tube are above 

 the pecten rows. According to Dyar and Knab's table and figure (from N. Y. Ent. 

 Soc, Vol. xrv), it would seem to be near A. tormentor, D. & K., a mainland species. 



Geiginal Description of Protoculex quasiserratus: 



Head silvery -grey in the middle, dark brown at the sides; palpi and proboscis 

 deep brown. Thorax deep brown with a narrow median pale creamy narrow line, 

 slightly broader posteriorly than in front. Abdomen deep brown with basal creamy- 

 white lateral spots. Legs unhanded; ungues all uniserrate. 



$. Head deep brown with median creamy-grey narrow-curved scales, followed by a 

 large patch of small flat black scales, then creamy ones, with dark upright forked 

 scales behind, deep ochreous ones in front and with the bright pale bristles pro- 

 jecting forwards between the eyes; palpi and proboscis black; antennae deep brown. 



Thorax black, clothed with narrow-curved bronzy-brown scales and a median line 

 of pale creamy narrow-curved scales slightly widening posteriorly; chaetae deep 

 brown, especially dense over the roots of the wings; scutellum brown with narrow- 

 curved pale scales in the middle, some darker ones at the sides of the pale ones and 

 narrow-curved dark ones on the lateral lobes; posterior border-bristles brown, six 

 to the mid lobe; metanotum brown, pleurae pale brown with silvery -grey sheen and 

 rather indistinct white puncta of flat white scales. 



Abdomen deep brown, with large basal lateral white spots, extending nearly along 

 the whole side of the segments, venter mostly white scaled. 



Legs deep brown, unhanded, the ungues of all the legs uniserrate. 



Wings with the first sub-marginal cell longer and slightly narrower than the 

 second posterior cell, its base slightly nearer the base of the wing, its stem half the 

 length of the cell, stem of the second posterior as long as the cell; posterior cross- 

 vein a little longer than the mid, about its own length distant from it. Wing scales 

 rather dense and the linear ones rather broad. 



Length. 5 mm. 



Habitat. Red Hills, Jamaica (Lord Walsingham and Dr. Grabham), Brazil (Dr. 

 Lutz). 



Time of capture. June and July (Jamaica), November (Brazil). 



Observations. Described from a series of five $'s. This species comes very close 

 to C. serratus, Theobald, on the one side to C. dupreei, Coquillett, on the other. From 

 serratus it may be known by the much smaller median pale thoracic line and from 

 dupreei by its larger size and narrower median thoracic line, which although it is 

 wider behind than in front is not nearly so much so as in that species, and the 

 median stripe is creamy-yellow not silvery-white. 



This species is very variable, some show only a trace of the median pale line, in 

 others it is practically absent. 



Dr. Grabham writes me the ova are laid separately and are whetstone-shaped. 



Description of Female, Mau;, and Larva of Aedes pertinax : 



Female. Proboscis rather short, subcylindrical, uniform; labellae comically 

 tapered; vestiture bluish-black; setae minute, curved, black, those on labellae 

 more outstanding. Palpi short, less than one-fourth as long as the proboscis ; 

 vestiture black, setae moderate. Antennae filiform, the joints subequal, rugose, 

 pilose, black; second joint slightly thickened, fusiform, paler at base; tori sub- 

 spherical, with a cup-shaped apical excavation, yellowish, shading to brown and 

 with a patch of fine setae on inner side, Clypeus prominent, rounded triangular, 

 depressed, dark brown, nude. Eyes purplish-black. Occiput dark brown, clothed 

 very broadly with narrow curved scales on the vertex, broad flat ones on the 



