Lonchaea ultima Collin

L. ultima sp. n. $ $. Third antennal joint long. Squamae with dark
fringes. Tarsi with first four joints obviously yellow, last joint contrastingly
deep black.
cJ. Frons dull except about bases of strong bristles on and near vertex.
Width opposite front ocellus compared with width of one eye about as
9 : 14, narrower in front. Frontal hairs not very long, about half, or less
than half, length of strong bristles. Face and antennae dusted brownishgrey.
Cheeks very narrow. Jowls seen from below about as wide as third
antennal joint. A short uniserial row of short hairs on peristoma in front of
the multiserial hairs on jowls. Antennae extending quite to lower margin of
face, third joint two and a half times as long as wide.
Thorax slightly dulled by microscopic pile on pleurae, and round margins
of disc, rather broadly so at sides, and with some indications of a faintly
dusted narrow median stripe. Pubescence not particularly long or dense.
No hairs on disc of scutellum. Only one stigmatical bristle. No hairs behind
the strong sternopleural bristle.
Abdomen microscopically dusted on first three tergites and basal margin
of fourth, but not at sides of third, or apical half at sides of second tergite.
Hypopygium (fig. 22) with inner laminate process bearing a flat projection
(slightly clubbed in outline) at end nearest anal lamellae. Penis remarkably
long and slender for this genus and not jointed.
Legs very distinct in colour of tarsi, the black last joint somewhat shorter
and broader than usual. Wings only slightly yellowish, rather darker yellow
about base. Stigmal section of costa rather long, more than twice length of
middle crossvein which is slightly beyond end of mediastinal vein. Squamae
with dark margins and fringes. Halteres black.
5 . Frons wider, about one-third width of head, dull, at least when viewed
from in front. Antennae, as usual, rather longer and broader. All
pubescence on frons and thorax shorter, and dusting along sides of thoracic
disc less distinct. Abdomen dusted only on first two tergites and about
extreme basal margin of third. Ovipositor with a number of pale hairs on
terminal section.
Length 3.25-4.75 mm.