56 
Psyche 
[Jun e-September 
Paratype ( $ ) : Y.M.C.A. Camp, Tepaztlan, Morelos, 
Mexico; beating cypress; Aug. 21, 1958 (collected by H. E. 
Howden). In the Canadian Collection, Ottawa. 
This insect clearly possesses the long piece of MA in 
the hind wing, characteristic of Raphidia, as opposed to 
its absence in Agulla. The species is readily identified by 
the fusion of the ninth sternite and its coxopodite into a 
single plate on each side. In R. notata of Europe the ninth 
sternite and coxopodite are partially fused, but in most 
species of the genus they are distinctly separated by a 
membraneous suture. It is interesting to note that a similar 
complete fusion occurs in some species of Agulla (e.g. 
xanthostigma) , representing an independent and parallel 
development of this condition. 
In other respects, americana is not notably different from 
other species of Raphidia. It differs from notata in having 
smaller styli and the absence of hooks on the gonocoxites 
of the ninth sternite. 
As noted above, americana is the first known living 
species of Raphidia to be found in the New World, as that 
genus is now conceived (cf. Carpenter, 1936). In all 
probability it is a derivative of the original population of 
the genus that existed in the New World (at least in 
Colorado) in the middle Tertiary. 
Family Inocelliidae 
This family has previously been represented in the 
New World by two species of the genus Inocellia : inf lata 
Hagen and longicornis Albarda, both of which occur in 
California, Oregon, Nevada, Washington, and British 
Columbia. The occurrence of the following new species in 
eastern Mexico is, therefore, of unusual interest. 
Inocellia pilicornis, n. sp. 
Plate 7, figures 4-7 
Male: length of fore wing 8.7 mm.; width 2.3 mm.; 
length of hind wing, 7.5 mm. ; width 2.2 mm. Pterostigma 
four times as long as wide. The veins and the pterostigma 
are light brown in the holotpye, but are very dark brown 
or even black in the paratypes. The markings on the dorsal 
surface of the head are typical of those of species in the 
