356 Annals Entomological Society of America [Vol. V, 
Abdomen: Tergum, segments 1—38, yellow, the lateral margins of 
the sclerites broadly brown; on the 4th and succeedings tergites, the 
brown lateral margins of the sclerites are paler but suffuse the whole 
segment; 7th and Sth sclerites black; 9th yellow. Sternites, 7th black, 
Sth black basally; remainder of sternum yellow. Hypopygium: (see 
Fig. n). 7th sternite and tergite about as in aymara; 8th sternite rather 
short, its length scarcely more than the 7th, its caudal margin quite 
straight, as in the 7th. Sth tergite, broad on the sides, the caudal 
margin quite deeply concave, reducing the median portion very con- 
siderably. 9th sternite (see Fig. n, 9s); cylindrical, rather elongated; 
viewed from beneath (n;) the whole caudal margin is squarely notched, 
this notch toothed and notched again. Viewed from the side, the dorsal 
margin is:straight basally, then straight apically, the angle being about 
150°; near its tip, produced into a complex appendage (Fig. n, v) its 
cephalic arm conspicuously chitinized, black, its caudal margin conspic- 
uously fringed with hair. 9th tergite (see n, 9t); caudal angles evenly 
rounded; caudal margin gently concave with a distinct blunt median 
tooth, which, on the ventral surface of the sclerite, is seen to be bent 
ventrad and continued cephalad, as an oval organ densely covered 
with minute chitinized teeth on the ventral surface, these denticules. 
more numerous on the margins. Apical appendages; dorsal-lying, 
viewed laterally, (a), elongate, slender, projecting straight backward, 
the tips expanded, rounded; viewed from above, it is seen that this 
organ is median, but deeply bifid at its tip (nz), giving the appearance 
of being a paired organ; the tips are divergent, enlarged apically into a 
rounded knob. Ventral-lying appendage, viewed laterally (b) subequal 
to the dorsal appendages in length, project caudad and slightly dorsad, 
the tips acutely pointed; from above, this organ is broad, slightly 
notched at the tip, and its dorsal surface appears to be concave. 
Holotype, o&, Igarapé-assié, Para, Brazil, Jan. 26, 1912, 
(HS. Parish, coll.) 
Type in Cornell University Collections. 
I take pleasure in dedicating this interesting species to the 
well-known South American traveller and collector, Mr. H. S. 
Parish. 
This little species is allied to appendens End. but differs 
considerably in coloration; the basal deflection of Cu, is dis- 
tinctly seamed with brown. This insect bears a certain resem- 
blance to aymara but is strikingly distinct in wing coloration 
and hypopygial characters. The flagellar segments in aymara 
are distinctly enlarged at the base; in parishi not at all swollen 
basally, the segments being uniformly cylindrical. 
