ANOPHELES NEIVAI 987 



submarginal, broader and irregularly dilated on anterior half, and extending 

 the entire length ; vestiture of rows of pale yellowish hairs, some pale scales at 

 anterior and lateral margins. Scutellum collar-like, gray pruinose, with deep 

 brown marginal bristles and short brownish hairs. Postnotum elliptical, 

 prominent, blackish, nude. Pleurae blackish-brown with two transverse whitish 

 stripes, coxae pale; vestiture of scattered pale hairs. 



Abdomen subcylindrical, depressed, tip subtruncate ; blackish, with traces 

 of a brown median line, clothed with numerous fine brown hairs and with longer 

 blackish ones, particularly at sides and beneath; under surface paler, particu- 

 larly the bases of segments. 



Wings (plate 41, fig. 8) moderate, hyaline; petiole of second marginal cell 

 shorter than its cell, that of second posterior cell longer than its cell ; basal cross- 

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

 of wing-veins narrowly lanceolate, black, with white scales in spots as follows : 

 three spots on the costa, one minute one near basal third, two rather small spots 

 on the apical third, five spots on first vein, the first near the base long, the 

 second, fourth, and fifth opposite the costal spots ; third vein with a small white 

 spot at base ; fifth vein with an elongate spot towards base and another at base of 

 fork ; fringe dusky, with whitish spots at the ends of most of the veins. 



Legs long and slender; vestiture black and white; femora blackish, white 

 lined beneath, with a narrow black ring near base, hind pair with a white streak 

 on outer side on basal two-thirds and an oblique white mark at apical third; 

 fore tibiae predominatingly yellowish-white, a narrow black line on inner side, 

 with a pre-apical black patch and white apex; mid and hind tibiae similarly 

 marked to the fore ones, a black ring near base and another subapically ; tarsi 

 black and white; fore tarsi black beneath, dorsally white, the first joint with a 

 black ring towards base and another near middle, second, third and fourth joints 

 black at base, fifth nearly all black ; mid tarsi black beneath, first joint with a 

 long white mark on outer side and a large dorsal white patch at apex, second joint 

 with the apical two-thirds dorsally white, third joint with an apical white patch 

 dorsally, fourth and fifth joints all black; hind tarsi with broad white rings 

 occupying more than apical half on second, third and fourth joints, the last 

 joint nearly all white, first joint with a narrow white ring at base, a broader 

 one at apex and one before middle prolonged dorsally into a streak to near 

 apical ring. Claw formula, 0.0-0.0-0.0. 



Length : Body about 3 mm. ; wiag 3.8 mm. 



Type : Cat. No. 20440, U. S. Nat. Mus. 



Larva, Stage IV. — Head rounded, longer than wide, conically produced be- 

 tween the antennae; antennae moderate, finely spinulate within, a short simple 

 hair near base; dorsal head-hairs simple, ante-antennal hairs long, tufted out- 

 wardly; median pair of anteelypeal hairs long and simple, outer pair shorter, 

 stout and spinulose at tip; hairs below anterior angles rather long, branched 

 towards apex. Thorax with lateral hairs well developed, some longer ones at 

 anterior and lateral angles very sparsely feathered, the others amply feathered. 

 Abdomen with six pairs of small dorsal fan-shaped tufts (plate 130, fig. 461), 

 the single elements of which are ligulate with straight truncate tips; lateral 

 hairs in twos and amply feathered on first two segments, single, very long and 

 sparsely feathered on third to sixth segments; secondary hairs simple. The 

 lateral plates of eighth segment with all the teeth long, uniform, rather dense. 

 Anal segment with rather large dorsal plate; lateral hairs single, unfeathered, 

 rather long; ventral brush of rather sparse but long, branched and amply 

 feathered hairs. 



The larvae live in the water held by the leaf-bases of epiphytic bromeliads. 

 There are no algae in the bromeliads, but there are no observations to show that 

 the larvaa are predaceous. The species has been bred from larvae by Mr. Jen- 

 nings in Panama and by Mr. Picado in Costa Eica. Knab found a larva, ap- 

 parently of this species, at Cordoba, Mexico, but did not succeed in rearing it. 



