284 MOSQUITOES OF NORTH AMERICA 



cially dense at the sides and with brown chaetag in front; palpi rather long, deep 

 blackish-brown, proboscis and clypeus deep blackish-brown. 



Thorax brown with narrow-curved scales dull golden in some lights, bright bronzy 

 in others, an area of darker ones on each side in front and around the bare space in 

 front of the scutellum some of a similar colour, the scales collect in two denser 

 patches towards the middle of the mesonotum forming two not very prominent pale 

 spots, and they are somewhat denser in a line from each running backwards, and in 

 some specimens the pale scales collect in front over the head to form two spots; as 

 in secutor there are two short anterior median parallel bare lines of a dark brown; 

 chaetae brown; scutellum paler than the mesonotum with paler scales of a golden 

 hue, and six deep brown bristles to the posterior border of the mid lobe; metanotum 

 bright brown; pleurae pale brown, with grey sheen and patches of rather long flat 

 white scales. 



Abdomen deep brown, with basal pale creamy bands, and basal lateral pure white 

 spots and short, pale, golden border-bristles, and some pale golden lateral bristles. 

 The bands on the third to fifth segments most prominent. 



Legs deep brown, femora pale grey at base and beneath, in the fore and mid legs 

 there are traces of pale bands to some extent involving both sides of the joints, but 

 mainly apical, more prominent on the mid than fore, in the hind legs the bands are 

 very prominent, and the apex of the last hind tarsal is pale; ungues small equal and 

 simple; knee spot prominent. 



Wings with the first sub-marginal cell longer and narrower than the second pos- 

 terior cell, its base slightly nearer the base of the wing, its stem about one-half the 

 length of the cell; stem of the second posterior cell about two-thirds the length of 

 the cell; posterior cross-vein longer than the mid, sloping backwards, and not quite 

 twice its own length distant from it; halteres pallid. 



Length. 4.5 to 4.8 mm. 



c?. Palpi acuminate, the two apical segments brown, unhanded, the apical one 

 longer than the penultimate, both with scanty black hair-tufts; the ante-penultimate 

 with a broad creamy band near the apex, and a smaller one towards the base and 

 traces of a still further basal one; proboscis with traces of a pale median band. Fore 

 and mid ungues, unequal, uniserrate. 



Wings with the first sub-marginal cell much longer and narrower than the 

 second posterior cell, its base slightly nearer the base of the wing than that of the 

 second posterior, its stem rather more than half the length of the cell, stem of the 

 second posterior cell as long as the cell; posterior cross-vein about two and a half 

 times its length distant from the mid cross-vein. Genitalia with broad, curved 

 claspers, terminal segment slightly expanded apically; the lateral process on the 

 basal lobe with three sword-like bristles and a foliate plate; a comb-like plate of six 

 dark teeth close to the basal process, between it and the clasper. 



Length. 4.3 to 4.5 mm. 



Habitat. Newcastle, Jamaica, W. I. (Dr. Grabham). 



Observations. Described from several 5's and two c^'s sent by Dr. Grabham. 



It was at first supposed to be Culex secutor, but can at once be told by the two pale 

 spots on the thorax, the more prominently banded abdomen and by the apical 

 segment of the male palpi being longer than the penultimate, not the same length as 

 is the case in C. secutor. Otherwise strongly resembling secutor. It also resembles 

 Culex janitor, Theobald, but this species has unhanded abdomen in the female, and 

 the male palpi have the two apical segments equal, and there is only one pale band. 



The larvae. Dr. Grabham writes, are very different from those of C. secutor. 



Description of Female, Male, and Larva of Culex secutor: 



Female. Proboscis moderate, subcylindrical, uniform, labellge conically 

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

 prominently outstanding. Palpi small and slender, one-fifth as long as pro- 

 boscis, black, with a few outstanding setre. Antennae with the basal joints some- 

 what shorter, rugose, pilose, black, the second joint slightly enlarged ; tori sub- 

 spherical, with a cup-shaped apical excavation, luteous, blackish on inner side; 

 hairs of whorls sparse, moderate, black. Clypeus rounded triangular, doubly 

 excavated at base, dark brown, nude. Eyes black. Occiput brown, clothed with 

 narrow, curved, lustrous pale-brown scales and many erect, forked black ones 

 on vertex, a large black patch on each side of middle ; margins of eyes and sides 

 below dull white scaled ; a row of black bristles along margins of eyes. 



