94 
PACIFIC SCIENCE, VoL XII, January, 1958 
20. Femora yellow. Abdomen without white 
lateral spots. Tasmania. 
........ L. flavifemorata Macquart, 9 
Femora predominantly black, partly yel- 
low. Abdomen with lateral white spots 
.21 
21. Legs black, only two-thirds of posterior 
femora yellow. Western Australia, Tas- 
mania, New South Wales 
L. telecles Walker, d, $ 
More parts of legs than two-thirds of 
hind femora 'are yellow. ............ 22 
22. Anterior legs wholly black. Apical part 
of female abdomen depressed laterally 
(Fig. 3 a). New South Wales, Victoria. . 
L. comata White, d, $ 
Anterior femora at base at least with a 
yellow spot (Fig. 6b}. Apical part of fe- 
male abdomen rounded, not laterally de- 
pressed (Fig. 3 b). Nearly whole of Aus- 
tralia. . L. rufifemorata Macquart, d, $ 
Laphria zentae sp. nov., d, 9 
Belongs to the group with completely 
black legs. 
Ground colour of body shining black. 
Head covered with a whitish dust, hairs and 
semi-bristles of face reddish-yellow; the cen- 
tral part of face (moustache) with black 
bristles. Some black bristles below base of 
antennae, on ocellar tubercle and on occiput, 
especially on the excavation of vertex. Hairs 
on antennae black. Third antennal joint 
elongated, elliptical. Proboscis short, only 
about half as long as the vertical diameter of 
head. 
Sides of thorax, postscutellum and coxae 
with white dust. Mesonotum with reddish- 
yellow markings on humeral calli, two trans- 
versal spots of the same colour behind them, 
with a silvery marking at each side of suture, 
and similar marking near postalar calli. Scutel- 
lam with numerous black marginal bristles 
and with short yellowish and black hairs on 
the disc (Fig. 2 b). In notopleural area (hind 
part) 3-4 long black bristles, 3-4 similar bris- 
tles in supraalar area, and 3-4 more on post- 
alar calli. Prescutellar area nude. 
Wings blackish in apical half and along 
hind margin, basal half nearly hyaline. Vein 
closing the discal cell (tp) straight. Cross 
vein r-m at end of basal third of the discal 
cell. First posterior cell at apex broad, slightly 
narrowed. Halteres yellowish. 
Legs black, long and slender, hind femora 
only slightly swollen. Underside of anterior 
tibiae and metatarsi with very short but dense 
yellow hairs, in the form of brushes; lateral 
and dorsal sides with very long, black hairs 
and bristles; anterior femora with yellow and 
black hairs, the black ones only on upperside, 
but without strong bristles. Mid-legs very 
similar to the anterior, but without the yellow 
brushes and with some strong bristles on 
apical part of femora. Hind legs similar to the 
middle ones, metatarsi not swollen, maximally 
as broad as apex of tibiae and nearly as long 
as three following segments combined. Claws 
of all legs slightly yellow at base. Pul villi 
yellowish. 
Abdomen elongated, longer than in other 
species, black, shining, laterally with white 
spots on first to fourth tergites. Hairs on 
lateral side yellowish, not dense. At sides of 
first tergite 4 black bristles, on the second 
2-3, on third, fourth and fifth 2 bristles. 
Genitalia rather large, black, shining, with 
black and whitish hairs. 
Female differs only slightly from the male. 
Long yellowish hairs are paler, whitish, but on 
head reddish as in male; abdomen slightly 
broader. 
Length of body 19 mm., of wing 15 mm. 
1 d, 29.xi.1955 (type), 1 d, 5.xii.l955, 
Lord Howe Island, N. S. Wales (S. J. Para- 
monov and Z. Liepa); 1 d , 19.ii.1957, North 
Bay, Lord Howe Island (Z. Liepa); 1 9, 
29.xi.1955, 1 9, 28.xi.1955, Lord Howe Is- 
land (S. J. Paramonov and Z. Liepa). 
