TWO NEW JAMAICAN CULICID^E. 283 



with dusky scales on the large basal and second segments. Thorax 

 black, covered with large flat apple-green metallic scales, rounded at 

 their apices and irregularly disposed over the mesonotum ; a patch of 

 almost silvery white ones just in front of the roots of the wings, with 

 also long dense black bristles ; scutellum with flat green and blue 

 scales and black border-bristles ; prothoracic lobes and pleurae silvery 

 white. Abdomen rich metallic violet ; the first segment with an 

 oblique white line on each side ; the second and third unadorned ; 

 the fourth with a few large basal white scales ; the fifth, sixth and 

 seventh segments with basal white bands ; border-bristles short, black; 

 each segment with a large basal silvery white lateral spot ; venter pure 

 silvery white ; each segment with a median black spot, the last two 

 segments projecting downwards, and giving the appearance of two 

 ventral black tufts. Legs unhanded, deep brown, with metallic violet 

 reflections, and a pale knee spot to the mid and hind pair ; femora 

 white beneath ; ungues small, equal, and simple. Wings faintly 

 tinged with brown, metallic violet and iridescent in certain lights; 

 first submarginal cell slightly longer and narrower than the second 

 posterior cell, its base nearer the apex of the wing, its stem longer than 

 the cell ; stem of the second posterior longer than the cell ; posterior 

 cross-vein rather more than its own length distant from the mid cross- 

 vein ; halteres with ochraceous stem and fuscous knob. Length, 4-5 mm. 



Hah. Kingston, Jamaica, W.L 



Time of caiiture. August (24th). 



Observations. — Described from a single perfect specimen. 

 Dr. Grabham took this brilliant species feeding on a horse. He 

 took two specimens, and mentions that "it is by far the most 

 brilliant species found here, and evidently uncommon." It was 

 taken at 7 p.m. at the lower end of Old Pound Road. It 

 resembles H. cyaneus, Fabricius, but the venation is different, 

 the first submarginal cell being smaller, and having its base 

 nearer the apex of the wing, whilst in cyaneus it is nearer the 

 base ; moreover, the abdomen is adorned. It also approaches 

 H. albomaculatus, Theob., but the abdomen has not the curious 

 chsetotactic characters seen in that species {vide fig. 171, p. 309, 

 Mono. Culicid., vol. iii.) and is banded, not having the two 

 median spots seen in albomaculatus. 



The three species of Hcemagogus tabulate as follows : — 



A. Abdomen unadorned. Base of first submarginal 

 cell nearer base of wing than the base of the 

 second posterior cell . cyaneus, Fab. = splendens, "Willis. 

 AA. Abdomen adorned. 



a. Base of first submarginal cell nearer apex 



of wing than that of posterior cell. 



b. With prominent chfetas and two median 



basal white spots . . . albomaculatus, Theob. 

 bb. No prominent chsetje, but basal white bands 

 and a white oblique stripe on each side of 

 first segment .... cquinus, Theob. 



