Genus Myzomyia. 53 



another at the marginal cross-vein ; on the lower branch of the 

 fifth a long yellow area and another faint one on the stem ; 

 fringe unspotted. 

 Length. — 3 mm. 



Myzomyia thorntonii. Ludlow (1904). 



Canad. Ento., p. 69 (1904). 



Closely related to M. albirostris, Theobald, but has an additional 

 palpal band, spotted legs and wings as in M. elegans, James. 



" $ Head dark brown, with a tuft of white scales on the vertex, and 

 white hairs projecting forward between the eyes, a few white scales around 

 the eyes ; antennae brown, verticels and pubescence white, basal segment 

 testaceous, a few white scales on first and second segments ; proboscis 

 brown on basal half, apical half dull yellow, with a narrow brown band 

 at the apex, extreme tip dull yellow ; palpi, ultimate segment white with 

 narrow basal brown band, penultimate also white with narrow basal brown 

 band followed by a broad white one and the remainder of the palp brown, 

 divided nearly in half by a narrow white band. About the middle of the 

 exterior brown section is a small yellow spot, and there are a few yellow 

 scales near the base of the palpus. Eyes and clypeus brown. 



Thorax light brown, with white (frosty) tomentum, a dark median 

 line, and sparsely covered with golden-brown hair-like scales and a few 

 flat white ones on the cephalad end ; prothoracic lobes with brown flat 

 scales ; scutellum light laterally and with a broad dark median line, hair- 

 like golden brown scales and brown bristles ; metanotum brown. 



Abdomen very dark brown, rather heavily covered with brown 

 (golden brown in some lights) hairs. Legs, coxae and trochanters all 

 brown with a few white scales ; femora and tibiae all dark brown with 

 distinct white spots (6 or 7) on the sides ; metatarsi on fore legs 

 basally and apically white banded and a few white spots, first three 

 tarsal segments basally and apically white banded so as to make rather 

 broad bands, last segment brown, but giving light reflections ; metatarsi 

 and all the tarsi of the mid legs have narrow white apical bands, some- 

 times the metatarsi have white intermediate spots and sometimes the 

 band on the last segment is lacking ; on the hind legs the metatarsi and 

 tarsi, except the last, have narrow . white apical bands and one or two 

 white spots. Ungues equal and simple. 



Wings much spotted, costa mostly dark, a light spot at the apex 

 extending on to the apex of first long vein, and upper fork of second long 

 vein, a second spot a little exterior to base of second posterior cell, a third 

 at the junction of the subcosta, a fourth at some distance from the third 

 and two or three small ones near base of the wing. The large spots all 

 extend on to the first long vein, and there are additional white spots on 

 the first long vein in the area between the third and fourth costal spots, 



