AEDES C0ND0LE8CENS 789 



in middle, with a long articulated terminal spine. Harpes elliptical, concave, 

 inner margin thickened and revolute, tip pointed and recurved. Harpagones 

 with a columnar base bearing a short seta on inner side at base and an articu- 

 lated terminal filament, slightly widened mesially and bearing a retrose spine. 

 Unci approximate, revolute, forming a large basal cone. Basal appendages 

 small, approximate, bearing three stout spines at the tip. 



Larva, Stage IV (plate 133, fig. 421). — Head rounded, widest through eyes, 

 narrowed anteriorly, a notch at insertion of antennae, front margin broadly 

 arcuate. Antennae moderate, slender, sparsely spined, a slight tuft a little be- 

 fore middle ; four irregular spines at tip and a digit on a pedicel. Both pairs 

 of dorsal head-hairs single, ante-antennal tuft multiple. Mental plate tri- 

 angular, with a small central tooth and fourteen on each side, basal ones irregu- 

 larly placed and broader. Mandible quadrangular, with a patch of short spines 

 outwardly at base ; two long filaments from a notch before tip ; an outer row of 

 cilia from a collar; a row of densely placed filaments on the outer margin; 

 dentition of four teeth on a process, the first the longest; two spines before, a 

 broad serrate filament and row of wide feathered hairs within; process below 

 deeply furcate, with an irregular row of hairs at base, a tuft on outer margin 

 and on tip of each limb ; basal angle moderate, with four stout hairs within and 

 a row at base. Maxilla subspherical, divided by a suture ; outer half with a row 

 of short filaments with divided tips on margin, and two complete rows of cilia 

 within, a tuft of long coarse hairs at tip ; outer half with two articulated fila- 

 ments at outer sixth, a small spine on margin and fine hairs over the surface; 

 palpus short and stout, with four rudimentary digits. Thorax rounded, wider 

 than long. Abdomen moderate, anterior segments shorter; lateral hairs in 

 threes on first segment, in twos on second, single on third to sixth ; skin spinu- 

 lose; traeheas broad, infiated in the thorax. Air-tube stout, tapered on outer 

 half, about two and a half times as long as wide; pecten running to beyond 

 middle, followed by a single tuft of about six hairs ; single pecten-tooth a long 

 spine with four or five irregular basal branches. Lateral comb of eighth seg- 

 ment of many scales in a rather small triangular patch ; single scales short and 

 rounded, evenly fringed with spinules. Anal segment nearly as long as broad, 

 ringed by the plate; dorsal tuft a long hair and brush on each side; a single 

 lateral hair; ventral brush well developed, confined to the barred area ; anal gills 

 long, about twice as long as segment, tapered to a rounded point. 



The larvae live in temporary ground-puddles. Mr. Knab got them in a large 

 muddy puddle in a stream-bed and in water in a hole in the root of a large tree 

 beside a stream. They were associated in the first case with Psorophora posti- 

 catus, Aedes cuneaius, Psorophora ciliata, and Psorophora virescens. 



Mexico to Panama. 



Almoloya, State of Oaxaca, Mexico, July 19, 1905 (F. Knab) ; Sonsonate, 

 Salvador, August 18, 1905 (F. Knab) ; Ancon, Canal Zone, Panama, July 18, 

 1908 (A. H.Jennings). 



Aedes euplocamus is closely allied to Aedes scapularis, but as it differs in the 

 coloration of the hind legs we can not do otherwise than consider it distinct. 

 It will probably prove that this species has been confused with Aedes scapularis 

 and that its distribution is much more extensive than here indicated. 



AEDES CONDOLESCENS Dyar & Knab. 



Culex confirmatus Coffin (not Arribaizaga), In Shattuck, Bahama Ids., 282, 1905. 

 Ochlerotatus confirmatus Coquillett (in part, not Arribaizaga), U. S. Dept. Agr., Bur. 



Ent., Tech. Ser. no. 11, 19, 1906. 

 Aedes condolescens Dyar & Knab, Journ. N. Y. Ent. Sec, xv, 11, 1907. 

 Aedes condolescens Pazos, Anal. Acad. Cien. m6d., fls. y nat. Habana, xlv, 422, 1908. 

 Aedes condolescens Pazos, Sanldad y Ben., 11, 47, 321, 1909. 

 Aedes condolescens Theobald, Men. Cullc, v, 485, 1910. 



