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III 
I [ 23 ] 
vhole of the apparent first joint, except for a ring of pale scales about its 
niddle, a ring of yellowish scales at junction of the penultimate and ante- 
jenultimate joints. Upper surface of apical half of penultimate joint scaled 
vith yellowish scales, and all the terminal joint except for a patch of black 
scales near its base. Proboscis uniform. 
Thorax ._Pale fawn-brown, with a median-dark line and lateral dark 
Drown patches, and on the anterior margin a rosette of long narrow-curved 
white scales. Hair-like golden bristles arranged in lines are distributed 
Dver it. There is a dark spot in front of scutellum. Wings, the costal 
spots are much paler yellow than in the female. The first spot is 
very long and commences fully 2/3 from the base of the costa, second 
spot small and near the apex, both involve costa to first longitudma , 
the second involving also upper branch of second long vein ; at base of 
second long vein is a distinct patch of black scales and a few are scattered 
along the course of this vein ; there is another patch at base of third 
and another near the base of fourth and a very few along the course of the 
vein. Besides these and the scaling on the costa and subcosta and first long 
vein, there are no other dark scales on the wing. In the feathering of the 
hind legs and the markings of the legs generally it resembles the female. 
Abdomen as in the female. 
Occurrence. —Described from a series bred from larvae taken from water 
in pierced living bamboos or split fallen bamboos. 
Remarks.— As far as I know exclusively a bamboo-breeder. The 
larva is very distinct, being of a light yellowish-brown colour with a large 
conspicuous black patch on the mesonotum, in shape something 1 e a 
Maltese cross. I have never taken the adult. Those bred in capti\ lty wi 
not bite. 
Genus 3.—Myzomyia. 
Thorax with a tuft of narrow scales on the anterior margin, hairs 
elsewhere. Abdomen with hairs on all the segments except the last, which 
in most species is clad with narrow scales. W ings with more than two 
pale costal spots and usually long thin lanceolate scales on the veins. 
Remarks. —This is one of the largest genera of the family and is well 
represented in Malaya. Five species are known. M. Rossii is probably 
the most widely distributed and commonest of the urban anophelines in the 
Peninsula. 
Myzomyia Albirostris. — Theobald. 
A rather small anopheline, apparently entirely a stream and pond 
breeder, with four definite yellow spots on the purple-black costa. The 
apical half of the proboscis is golden scaled, the basal being black, and the 
last joints of antennae are scaled yellowish-white. 
Female Head. —Dark brown, space between the eyes broader than usual. 
Immediately in front on the vertex are some double curved long silky white 
scales, behind these on either side of a bare line are placed a few white 
narrow spindle-shaped curved scales, which latter extend back into a patch 
of upright scales, white in the centre and creamy-yellow at the sides, which do 
not spread far laterally ; behind these bordering the occipital foramen and 
