is fuscis basi cinereis, halteribus
testaceis.

_Male and Female._ Head and pectus with white tomentum and hairs; mystax
with a few black bristles; mouth and antennae black; third joint of the
latter linear, conical at the tip, longer than the first and the second
together; thorax with cupreous-gilded tomentum; abdomen purple, green at
the base, blue and with a row of white dots along each side; legs blue;
wings brown, cinereous towards the base, veins black; halteres
testaceous. _Male._ Legs very thick and pilose. Length of the body 9
lines; of the wings 16 lines.

27. LAPHRIA SOCIA, n. s. _Foem._ Cyaneo-viridis, capite aurato,
antennarum articulo tertio longissimo subfusiformi, thoracis tomento
subaurato, vitta media nuda, pectore argenteo, abdomine purpureo-cyaneo
basi viridi maculis lateralibus argenteis, alis nigro-cinereis basi
cinereis.

_Female._ Bluish-green. Head brightly gilded, hind part silvery; mystax
with six long black bristles; third joint of the antennae very elongate
subfusiform; thorax with slightly gilded tomentum, excepting a broad
bare middle stripe; pectus with silvery tomentum; abdomen purplish-blue,
green towards the base, with spots of silvery tomentum along each side;
hind borders of the ventral segments white; wings grey, blackish-grey
for almost half the length from the tips and along three-fourths of the
length of the hind border, veins black; halteres ferruginous. Length of
the body 8-1/2 lines; of the wings 16 lines.

28. LAPHRIA CONSOBRINA, n. s. _Foem._ Purpurea, capite aurato, pectore
argenteo, abdomine viridi-cyaneo, maculis lateralibus argenteis, alis
nigricantibus basi cinereis.

_Female._ Purple. Head brightly gilded, hind part silvery, underside
with white hairs; mystax with six long black bristles; pectus with
silvery tomentum; abdomen greenish blue, with spots of silvery tomentum
along each side; hind borders of the ventral segments white; wings
slightly grey, blackish for full half the length from the tips and along
full three-fourths of the length of the hind border, veins black;
halteres ferruginous, with black tips. Length of the body 7-1/2 lines;
of the wings 14 lines.

This species much resembles _L. socia_, but may be distinguished by the
difference of colour, and more especially by the more undulating first
branch vein, by the much less oblique third externo-medial vein, and by
the subanal vein, which is united to the anal vein much nearer the
border.

29. LAP