112 
BULLETIN OF WISCONSIN NATURAL HISTORY SOCIETY. VOL. 4, NO. 3. 
the first tarsal joint. Hind legs black, the extreme base of the 
tibiae black. Hind tibiae very broad, and strongly flattened, 
cleaver-shaped, fully one-third as wide as long, the leaf-like part 
two times as wide as the thickened part ; at the tip with two small 
apical spurs. Hind tarsi flattened, but scarcely over one-fourth 
as wide as the tibiae. Metatarsus as long as the three following 
joints which gradually become narrower. Wings hyaline, tinged 
with brown behind the stigma ; marginal and postmarginal veins 
equal, each two and one-half times as long as the knobbed stigmal 
vein. 
Male. Length 5 mm. Much more slender, the legs very long. 
Apical joint of antennae wider than the penultimate, ovate pointed, 
but scarcely obliquely truncate. Middle tibiae much longer, their 
spur one and one-fourth times the length of the first tarsal joint. 
Hind tibiae flattened, but not broader than the femora. Tarsi only 
slightly flattened. Wings without the stigmal spot. Otherwise 
similar to the female. 
Described from tw^o specimens, the female from Algoa Bay, 
Capland, Dec. 29, 1895, and the male from the same locality 
Nov. 11, 1905. Both were collected by Dr. Brauns. 
This remarkable species is very similar to the North American 
Mc la prima specabilis of Westwood,* but differs by its much 
more strongly compressed hind tibiae, smoother thoracic dorsum 
and differently colored legs. I have had opportunity to compare 
the two through the kindness of Dr. Wm. H. Ashmead, who 
loaned me a specimen of Westwood's species. 
*[Proc. Zool. Soc. London, Vol. 3, p. 69 (1835)]. 
