AEDES BALTEATUS 809 



segment of about twenty-five scales in a narrow patch, each scale broad, with a 

 rather short central spine and long lateral fringe. Air-tube about two and a 

 half times as long as wide, tapering outwardly; pecten of twelve to fourteen 

 stout teeth, reaching about to the middle of the tube, with an ample hair-tuft 

 situated near base of last tooth. Anal segment longer than wide, ringed by the 

 plate ; dorsal tuft a long hair and tuft on each side; lateral hair single; ventral 

 brush well developed, confined to the barred area; anal gills long, tapering to 

 sharp points, equal. 



Dr. Grabham bred the larvae from temporary puddles of rain-water. 



Island of Jamaica. 



Kingston, July 10, 1906 (M. Grabham). 



As remarked in the discussion of Aedes Iracteatus, the species tortilis repre- 

 sents in Jamaica that Cuban species. Theobald states that Dr. Grabham has 

 noted that the adults when at rest elevate the hind feet over the head like the 

 sabethines. This unusual habit has been observed by Dr. Dyar in the case of 

 Aedes pertinax and seems to be peculiar to these insular forms. None of the 

 many other culicines we have observed in life hold their legs in the manner 

 characteristic of sabethines. 



AEDES BALTEATUS Dyar & Knab. 



Aedes l)alteatus Dyar & Knab, Journ. N. Y. Ent. Soc, xv, 9, 1907. 

 Aedes balteatus Theobald, Mon. Culic, v, 485, 1910. 



Oeioinai. Desckiption of Aedes balteatus : 



Proboscis black; palpi black; head behind the eyes pale bronzy, a large dark 

 spot on each side; thorax bronzy yellow on the disk, a rounded deep brown patch 

 on the front of the lateral margin, scutellum silvery. Abdomen black above, with 

 narrow basal pale bands; beneath pale, the hind angles of the segments black. Legs 

 black, unhanded, femora pale beneath. Tarsal claw formula of the female, 

 1.1-1.1-0.0. 



6 specimens, Santo Domingo, "West Indies (A. Busck). 



Type.— Cat. no. 10152, U. S. Nat. Mus. 



Closely resembling Aedes auratus Grabham, but the claws of the hind tarsi are 

 simple. 



Desckiption of Female of Aedes balteatus (Male and Labva Unknown) : 



Female. — Proboscis rather long, subcylindrical ; labellse conically tapered; 



vestiture black ; setse minute, curved, black, those on labellae more prominently 



outstanding. Palpi short, about one-sixth as long as the proboscis, clothed 



with black scales and moderate, stiff bristles. Antennae filiform, the joints 



subequal, rugose, pilose, black; second joint slightly thickened, fusiform, yellow, 



dark at apex; tori subspherical, with a cup-shaped apical excavation, luteous, 



blackish within, with a patch of fine black hairs; hairs of whorls moderate, 



sparse, black. Clypeus rounded triangular, depressed, with a slight median 



groove, nude. Eyes bronzy-black. Occiput black, clothed broadly with narrow 



curved scales on the vertex, flat ones on the sides, pale coppery-golden medianly 



and along eye-margins, a large black patch on the sides, many erect, forked, pale 



yellow scales well back on the nape; setae along margins of eyes black, those 



projecting between eyes pale yellow. 



Prothoracic lobes elliptical, remote dorsally, dark brown, concolorous vrith 



sides of mesonotum, with whitish scales and numerous black bristles. Meso- 



notum dark brown, clothed with narrow, curved scales, coppery golden in a 



broad median area, laterally produced behind middle and marked with dark 



brown in two indistinct narrow longitudinal lines, a distinct, deep brown, 



lateral rounded patch at anterior third surrounded by golden scales and a pair 



of small deep brown spots before anteseutellar area ; scales about antescutellar 



space and over roots of wings paler; setae rather short, black. Scutellum trilo- 



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