906 MOSQUITOES OF NORTH AMERICA 



slightly unequal, small; mid ones unequal, the larger fully developed, sickle-shaped, 

 simple; the hind ungues small, simple, slightly unequal. 



Length. — 2 mm. 



Time of capture. — March (Grabham) (11). 



Habitat. — Jamaica. 



Observations. — Described from a series sent by Dr. Grabham. It is very close to 

 V. Natalia: of Arribalzaga, but differs from it in having only one pearly abdominal 

 band. 



The species can easily be told from the other Uranotainiw of the West Indies and 

 South America by this character and by the unhanded legs, with the white Icnee 

 and tibial spots which sometimes show pale blue. Dr. Grabham writes: " Found in 

 association with Anopheles larvse in stagnant permanent pools, about the Kingston 

 district. I have not been able to persuade this form to feed from my finger when 

 placed in the netting of the breeding-jar." 



Obiginal Desceiption or Ueanot^nia coquili^etti: 



Near socialis Theob., but differentiated by the characters given in the table. Dr. 

 Dupree sent the specimens to Miss Mitchell and Mr. Coquillett named them " Urano- 

 twnia socialis Theob." We dedicate the species to Mr. Coquillett, who has certainly 

 performed a vast amount of labor on a difllcult subject, whatever we may think 

 of his results. 



The following is an abstract of the table : 



1. Antennae with scattered spines; longest terminal seta shorter than 



antenna 2 



2. Terminal setse four 4 



4. Antennae with the hair at about the basal third 5 



5. Pedicellate digit double, the two forks about equal in length 6 



6. Shortest spine slender, filiform; apical tooth of labial plate tri- 



angularly pointed coquilletti 



Desceiption of Femaie, Male, and Labva op Ueanot^nia socialis: 



Female. — Proboscis long, slender at base, apical fourth much enlarged ; 

 labellffi large; vestiture of black scales; cilia numerous, particularly towards 

 apex. Palpi very short, stout, clavate; vestiture of blackish scales and with a 

 few very long sets at apex. Antennae long and slender, the joints subequal, with 

 the ciliation coarse and rather sparse, second segment longer and considerably 

 stouter than the succeeding one ; hairs of whorls long, sparse ; tori large, globose, 

 with an apical excavation, light yellow-brown. Clypeus large and prominent, 

 broadly subtriangular, the base constricted, brown, shining, nude. Occiput 

 covered with very broad recumbent scales, brown and black, the anterior margin 

 broadly pale metallic-blue scaled; bristles along margins of eyes black, a pair 

 of large pale ones projecting forward between the eyes. 



Prothoracic lobes prominent, remote dorsally, covered with broad, flat, pale 

 metallic blue scales and with a few black bristles. Mesonotum yellow-brown 

 with a dark median longitudinal stripe ; vestiture of sparse, narrow curved, dark 

 bronzy-brown scales, a narrow median stripe of broad, pale metallic blue scales 

 beginning near anterior margin and extending to antescutellar space ; a short 

 lateral marginal stripe of pale blue scales from near middle to root of wing; 

 setae rather sparse but long, in submedian and lateral series, shorter setse at 

 sides of median blue stripe. Scutellum with lateral angles acute, median lobe 

 large, broadly rounded ; lateral and median lobes with clavate dusky-brown out- 

 standing scales, median lobe with a large patch of broad, iiat silvery-blue scales ; 

 each lobe with a few long bristles. Postnotum large, convex, yellow-brown, 

 nude. Pleuree yellow-brown with a large median dark brown spot bearing an 

 elongate patch of broad, flat silvery-blue scales; bristles coarse, black. 



Abdomen subcylindrical, somewhat depressed, truncate at tip; dorsal vesti- 

 ture of dusky-brown scales, in some lights black with bluish iridescence; fifth 

 segment with a large median triangular white patch on hind margin; ventral 

 vestiture of dirty yellowish-white scales with silvery luster; marginal cilia of 



