16 AUSTRALASIAN ANTARCTIC EXPEDITION. 
Ty pes.—Holotype, indicated by arrow, and four paratypes, on slide No. 
AAK. [3., in company with a specimen of Entomobrya mawsoni n. sp. Also a number 
f paratypes in 70 per cent. alcohol, in tube No. C. 25. All the above placed in the 
Australian Museum, Sydney. 
Habitat.—Macquarie Island. Collected by H. Hamilton. Collector’s note 
to tube No. C. 25.— Jumping Arthropods. Common under stones, in crevices of 
rock, and under moss. Have tremendous jumping powers when touched. North 
End, Macquarie Island. 1.19.12 (sic). In 70 per cent. alcohol.” 
There were also other specimens of this species in a tube numbered C. 43, undated, 
and without label. 
This species is dedicated to Professor T. W. Edgeworth David, C.M.G., D.Sc., 
ERS, Geologist to Sir E. Shackleton’s Antarctic Expedition, and Professor of 
Geology in the University of Sydney. 
No other species of this genus is known from Antarctic or Sub-antarctic regions. 
But a species of the allied genus Sminthurinus (Sm. granulosus End.) has been recorded 
from Crozet Island, while the genis Sminthurus itself is represented by three species in 
Tierra del Fuego and by an undetermined species in Kerguelen Island. (5.10.11.) 
Order: HYMENOPTERA. 
Sub-order: CLISTOGASTRA or APOCRITA. 
Dwision: VESPIFORMIA. 
Family: Diaprip”. 
This family contains small and sometimes wingless Hymenoptera of rather 
obscure affinities, but usually placed near the beginning of the Vespiformia, and thus 
coming between the Chalcidoidea and the Ants. To the uninitiated, the wingless 
species of this family would probably be taken for small Ants; but they differ from 
the true Ants in many characters, notably in the much more generalised form of the 
antenne and the base of the abdomen. 
The family may be defined as follows :— 
Winged or wingless Vespiformia, with the trochanters two-jointed, but the 
distal joint difficult to make out, as it is generally closely attached to the femur. Man- 
dibles with three teeth or less situated towards the apex. Antenne inserted well 
above the clypeus, near the middle of the face, and usually ona raised frontal prominence, 
with the more distal joints forming a more or less distinct club; not elbowed, as in the 
Ants. Fore legs with an antennal comb. Gaster more or less globular. Wings, when 
present, with or without a basal cell; the marginal vein in the forewing linear, not 
triangularly thickened, Small or minute insects, generally blackish. 
