DIPTERA. 211 
Psitopus susLectus, Fem. 
Viridis, antennis nigris, pedibus fulvis, genubus larsisque piceis, alis sub- 
cinereis. 
Green, thickly beset with black bristles, adorned beneath with a 
whitish covering: eyes bright red: mouth tawny: feelers black; sixth 
Joint nearly as long as the chest : abdomen obconical, longer than the chest : 
legs tawny, clothed with very short black hairs; knees and feet pitchy ; 
wings slightly gray; wing-ribs and poisers tawny; veins black, tawny at 
the base. Length of the body 14 line; of the wings 3 lines. 
Van Diemen’s Land. 
Psitopus Gemmartius, Plate 6, fig. 2. 
Genus MEDETERUS, Fischer. 
Meprrervs exustus, Fem. 
* 
Nigro-eneus, capite antico viridi, abdomine purpureo-cupreo, antennis 
pedibusque nigris, femoribus eneis, alis cinereis costa venarumque 
marginibus fuseis. 
Allied to M. notatus. Bronze-black, beset with black bristles which 
form a cross row behind the head, adorned beneath with a whitish cover- 
ing: head green in front, clothed beneath with black hairs; peristoma pro- 
minent: eyes red; facets of the fore part rather large: feelers black : 
abdomen obconical, coppery with a slight purplish tinge, not longer than the 
chest: legs long, black, thickly clothed with black down, beset with a few 
black bristles; thighs brassy, armed with black spines; foot-cushions dark 
tawny: wings darkish gray, very dark brown beneath the fore border and 
along the borders of the veins in the disk; wing-ribs and veins black ; 
pvisers dark tawny with, pitchy knobs. Length of the body 24 lines; of the 
wings 6 lines. 
Bolton, North America. 
a F* = ai 4 a . 7 . » - 
en ee Te me SF al i 
