NEW SPECIES OF THYNNIDÆ. 
Ill 
broad. Abdomen smooth and shining, flattened, subpetiolate, the first 
segment a little longer than the second, broadened from the base to 
the apex, with a longitudinal sulcus from the base to the middle ; the 
second segment nearly twice as broad at the apex as the first; the 
hypopygium small, triangular, with a short apical spine. Second cubital 
cell much shorter than the third on the radial nervure, receiving the 
first recurrent nervure at one quarter from the apex, second recurrent 
nervure received by the third cubital cell just beyond one quarter from 
the base. 
Black ; the mandibles at the base, the anterior margin of the 
clypeus, two minute spots between the antennæ, the anterior margin 
of the pronotum narrowly interrupted in the middle, an oblique line 
on each side on the posterior margin, a small spot on the middle of 
the scutellum, sometimes absent, and a transverse line on the post- 
scutellum yellow ; tegulæ and spines of the tibiæ testaceous. Wings 
hyaline, iridescent, faintly washed with fuscous; nervures fuscous. 
Length 8—9 mm. 
Hab. New South Wales. 
Described from two males and three females in the Hungarian 
National Museum. 
Nearest to nitidulus Turn, which species is also in the collection 
from Mount Victoria, N. S. W. 
Thynnus (Aeolothynnus) exiguus sp. nov. 
c?. Clypeus triangularly produced and very narrowly truncate at 
the apex, finely and closely punctured, with sparse pubescence, with a 
carina from the base to the middle. Head finely and closely punctured, 
rounded posteriorly, the interantennal prominence truncate at the apex 
and narrow, the frontal sulcus almost obsolete. Antennæ shorter than 
the thorax and median segment combined, of almost equal thickness 
throughout. Thorax finety punctured ; the pronotum shining and almost 
smooth, the anterior margin slightly raised, narrower than the head; 
scutellum long, about one third shorter than the mesonotum, narrowly 
truncate at the apex, with a depressed transverse row of deep punctu¬ 
res at the base. Median segment rounded, smooth and shining at the 
base, punctured at the apex. Abdomen flattened, fusiform, the first 
segment with a short depression at the base, the second segment 
transversely depressed at the base, all the segments shining, with fine 
scattered punctures, the two apical segments rather more closely punc¬ 
tured and thinly pubescent. Hypopygium narrow, produced very little 
