PHORIDÆ FROM THE INDO -AUSTRALIAN REGION. 
Phora, section Dorniphora Dahl. 
1. Hind tibiæ without external bristles. „„ „„ .. 2. 
Hind tibiae with a stout external bristle at basal third and one just before 
the tip.4-' ~ ~~ m „„ „„ m . ™ Ph. papuana n. sp. New Guinea. 
Hind tibiae with four of five fine external bristles. „„ Ph. incisuralis Lw. 
N. America. 
2. Front dark brown or black. m „„ ^ „„ „„ „„ „„ 4 ~ ~~ 3. 
Front reddish yellow, proboscis of female elongated. „„ Ph. Dolimi Dahl. 
Bismarck Archipelago. 
3. Front opaque ; larger species. Ph. divaricata Áld. var .perplexa Brues. U. S. A. 
Front shining; smaller, 1*4—1*8 mm. „ „„ „„ Ph. divaricata Ald. 
West Indies ; New Guinea. 
Hypocera difformi s n. sp. 
Male. Length 2 mm. Black, bases of antennæ and legs, and hypo- 
pyginm lighter. Head of medium size, the front very broad, shining black, 
sparsely hairy; the setæ all present and well developed. Vertex rounded, 
no ocellar tubercle or median frontal groove. Antennæ pear-shaped, ob¬ 
tusely pointed at the tips, black, except at base ; arista subdorsal, almost 
bare. Palpi yellowish brown, with moderately strong bristles. Proboscis 
short and thick. Post-ocular cilia strong, 
black ; cheeks without stout macrochætæ. 
Thoracic dorsum dull piceous black, with a 
single pair of dorsocentral macrochætæ and 
only two strong scutellar bristles. Abdomen 
slender ; dull black, the basal segments of 
about equal length and without any bristles. 
Hypopygium small, yellowish brown, the ven¬ 
tral lamella projecting but little. Legs slender, piceous black, paler basally. 
Anterior tibiæ without any stout bristles, fringed externally with fine setulæ; 
middle tibiæ with a pair at basal third and one externally at tip ; poste¬ 
rior ones bare. Wings subhyaline, the costal vein not quite reaching to 
the middle of the wing, its cilia small and closely placed; first vein en¬ 
larged at its tip, and prolonged as far as the tip of the third, forming an 
elongate swelling. Discal veins weak, the seventh obsolete ; fourth vein 
almost straight, fifth faintly sinuate and sixth strongly so. Halteres piceous. 
This peculiar species is easily recognized by the unusual development 
of the first longitudinal vein. It has more slender legs than most mem¬ 
bers of the genus. 
Two specimens, male and female, Paumomu and Kapakapa, New 
Guinea. 
Fig. 1. Wing of Hypocera 
difformis n. sp. 
