232 
Psyche 
[Dec. 
brown. The dark brown margin extends back along the 
submarginal cell a distance basally beyond the end of the 
subapical cross vein equal to the petiole of the first pos- 
terior cell. The marginal cell except at the apex of the 
wing, the costal cell and a large diffuse spot in the mid- 
dle of the wing are more yellowish or reddish brown. 
The central wing spot extends only narrowly beyond the 
anterior cross vein, which cross vein lies close to the base 
of the discal cell, and borders the cubital cross vein. The 
whole subcostal cell is dark brown ; alulae quite wide. 
Female. Similar to the male, the sides of the front 
greyish white pollinose ; the ground color of the front is 
strongly shining bluish black but in the middle it appears 
to be more purplish black ; the occipital pile is confined to 
a single, neatly formed row of long, pale yellow hairs 
which become reddish brown above and nearly whitish 
close to the oral margin where there are several rows of 
hairs. Notopleural bullus rather conspicuous, the pos- 
terior part of the notopleura whitish pollinose. The 
mesonotal pile is a little shorter than in the male, the 
pleura have an obscure brownish red stripe down the 
middle; the pteropleura are wholly metallic black; the 
halteres have a yellowish brown to reddish knob. Upon 
the abdomen the medial dark brown stripe of the second 
segment appears to be wanting and the basal spots of the 
third segment smaller and more diffuse. 
Holotype : a male, La Suiza, Costa Rica, 24 ; Pablo 
Schild ; allotype : a female with the same data without 
numeral; there is also a paratype male and female with 
the same locality and collector. Type and allotype in the 
collection of Dr. A. L. Melander. 
Baccha zephyrea n. sp. 
A slender species related to argentina Curran, but with 
different pattern. Length 8 mm. 
Male. Head: the vertex is quite protuberant, black, 
the black pile in a single row; the bluish black front is 
prominently transversely striate and abundantly long 
black pilose on the sides but rather bare in the middle 
and the sides of the front are linearly yellowish white 
