AEDES PODOGRAPHICUS 813 



Original Description of Aedes podogbaphicus : 



^. Thoracic ornamentation similar to the $. Thorax black, silvery scaled on the 

 sides before the wings. $. First joint of middle tarsi white, a black spot at the 

 middle, not black, white at the ends. 



This is the Central American form referred to by us as Aiides insolita Coquillett 

 under Mr. Coquillett's determination (Journ. N. Y. Ent. Soc, xiv, 203, 1906), but it 

 appears from a nice bred series sent us by Mr. F. W. Urich, that insolita (which was 

 described from Trinidad) is the female of the species of which Yerrallina laternaria 

 Coquillett is the male, the sexes being dimorphic. The species will be known as 

 insolita Coquillett. In podographicus the sexes are monomorphic. 



The larvae were separated by us on the shape of the antennae; but as this 

 character is rather indefinite, it will be better to change the table, omitting the 

 dichotomy 40, placing podographicus with insolita under 44, and separate them by 

 the shape of the pecten of the air tube as shown in our figures 17 and 20, figure 17 

 representing insolita and figure 20, podographicus. 



Localities as given by us under Aedes insolita {Verralina insolita Dyar & Knab, 

 not Coquillett). Sonsonate, Salvador may be considered the type locality. 



Type. Ca.t. No. 10,016, U. S. Nat. Mus. 



Description of Female, Male, and Lakva of Aedes podographicus: 



Female. Proboscis rather long, subcylindrical, uniform; labellse conically 

 tapered ; vestiture black ; setae short, curved, black, those on labellse more 

 prominently outstanding. Palpi short, about one-fourth as long as the pro- 

 boscis, rather slender ; vestiture black, setae moderate. Antenna filiform, the 

 joints subequal, rugose, pilose, black, pale at base; second joint somewhat 

 thickened towards middle; tori subspherical with a cup-shaped apical excava- 

 tion, blackish; hairs of whorls moderate, sparse, black. Clypeus rounded tri- 

 angular, convex, blackish-brown, shining, nude. Eyes black. Occiput blackish, 

 clothed medianly with rather broad curved scales, broader fat ones on the sides, 

 dark brown, a line of silvery-white ones along margins of eyes and on the cheeks 

 white ; many erect forked black scales on the nape ; setae along margins of eyes 

 black, some pale ones projecting between eyes. 



Prothoracic lobes elliptical, remote dorsally, blackish, with broad silvery 

 scales and brownish-black bristles, Mesonotum dark brown, clothed with 

 narrow, curved, bronzy-brown scales, a large angular patch of silvery-white 

 much broader scales on anterior half of lateral areas, broadening posteriorly and 

 squarely terminated; a small silvery spot on margins in front of insertions of 

 wings, some pale scales about antescutellar space; bristles over roots of wings 

 and about antescutellar space long, brown. Scutellum trilobate, blackish, each 

 lobe clothed with narrow, curved, silvery-white scales and with a group of brovm- 

 ish yellow bristles. Postnotum elliptical, prominent, blackish brown, nude. 

 Pleurae black, coxa brownish luteous, clothed with patches of elliptical silvery- 

 white scales and rows of pale bristles, a large silvery-white patch on anterior 

 angles continuous with that on dorsum. 



Abdomen subcylindrical, flattened, tapering posteriorly, sixth and seventh 

 segments apically expanded beneath; dorsal vestiture purplish-black, a row of 

 lateral, basal, segmental silvery-white patches, extending to or beyond middle of 

 segments, their apical angles dorsally produced; first segment purplish-black 

 scaled and with many fine pale hairs; venter black scaled, banded with silvery 

 white at bases of segments. Cerci black. 



Wings rather broad, hyaline; petiole of second marginal cell much shorter 

 than its cell, that of second posterior cell also slightly shorter than its cell ; basal 

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

 deep brown, with a bluish reflection along the costa, the outstanding ones of 

 veins ligulate, denser toward tip of wing. Ilalteres whitish, with darker knobs. 



Legs rather long and slender ; vestiture blue-black ; femora beneath on basal 

 half silvery white, tips also narrowly white beneath ; middle femora narrowly. 



