MR. F. WALKER ON DIPTERA COLLECTED AT 
Female. Black; head with gilded tomentum, cinereous behind; epi- 
stoma flat, with two pale bristles; palpi short ; antennz mutilated ; 
thorax and pectus with gilded tomentum, the former with four broad 
black stripes, the latter with two black bands ; abdomen clavate, 
about twice the length of the thorax, very slender towards the base, 
where it is dilated; fore part with three tawny bands, 3rd band in- 
terrupted in the middle, dilated on each side; legs red, slender; 
tarsi black ; posterior femora and tibiz with a broad black middle 
band ; wings cinereous ; veins black ; halteres yellowish. Length of 
the body 6 lines; of the wings 10 lines. 
Subfam. Larurites, Walk. 
Gen. Lapuria, Fubr. 
11. Laphria tristis, Dol. See Vol. V. p. 146. 
12. Laphria comes, Walk. See Vol. III. p. 85. 
13. Laphria conveniens, Walk. See Vol. V. p. 278. 
14, LAPHRIA SETIPES, n. s. Mas. Cyanea, capite argenteo, anten- 
narum articulo 3° lineari, thoracis lateribus anticis pectoreque albo to- 
mentosis, abdomine purpureo longo, pedibus purpureis longissime 
setosis, femoribus posticis incrassatis, alis nigricantibus dimidio basali 
cinereo, halteribus albis. 
Male. Blue; head silvery in front, thickly clothed beneath with white 
hairs; mystax with a few black bristles; third joint of the antenne 
linear, conical at the tip; pectus and sides of the thorax in front with 
white tomentum ; abdomen purple, slender, linear, about twice the 
length of the thorax; legs purple, thickly clothed to the tips of the 
tarsi with long black and white bristles; femora much incrassated, 
partly blue ; wings blackish, cinereous for nearly half the length from 
the base; veins black; halteres white. Length of the body 8 lines ; 
of the wings 12 lines. 
15, LapHRIA FLAGELLATA, n.s. Mas et Fem. Nigra, capite aurato, 
antennarum articulo 3° lato fusiformi, pectore albo tomentoso, seg- 
mentorum abdominalium marginibus posticis lateralibus albis, pedibus 
purpureo variis, alis nigris basi cinereis. Mas. Abdomine purpureo. 
Male and Female. Blue; head brightly gilded in front, clothed beneath 
with white hairs; mystax with several black bristles ; antennz black, 
third joint broad, fusiform; pectus with white tomentum ; abdomen 
with white tomentum on the hind borders of the segments; legs 
partly purple, thinly beset with black and white bristles; wings 
black, cinereous towards the base; veins and halteres black. Male. 
Abdomen purple. Length of the body 44-5 lines; of the wings 8-9 
lines. 
