Mr. R. McLachlan on a new Species of Corydalis. 499 
SELENOPALPUS, White. P. atratus, Guér. 
S.? eneus, Fab. — hemopterus, Guér. 
PsEUDOLYCUS, Guér. DourntA, Newm. 
P. hemorrhoidalis, Fab. D. miranda, Newm. 
— cinctus, Guér. 
XXXII.— Description of a new Neuropterous Insect belonging to the 
genus Corydalis, Latreille. By R. M°Lacuuayn, F.L.S. 
Corydalis Hecate. 
Plate XX. fig. 1,3; la, anal appendices, from above; 1, ditto, from 
the side ; fig. 2,9. 
C. brunnea; capite supra et infra ruguloso, marginibus lateralibus fere 
rectis, dente subacuto instructis; mandibulis in ¢ @ fere sequalibus, 
capite brevioribus, intus sub apice tridentatis; antennis gracilibus, 
testaceis; prothorace levi, supra convexo, lateribus parallelis; alis 
do fuliginoso-subhyalinis, 9 cinereo-subhyalinis (anticis basin versus 
pallidioribus), areolis costalibus nonnullis apicem versus, spatio longo 
in area subcostali et maculis parvis in cellulis (in posticis minus nume- 
rosis) albidis, venis longitudinalibus rufo-brunneis, venulis transver- 
salibus nigricantibus; pedibus pallide rufo-brunneis; ¢ appendicibus 
superioribus elongatis, ad basin dilatatis. 
Long. corp. ¢ 1” 9”, 9 3" 0"; exp. alar. f 4” 5’, 2 5” 9”. 
Habitat in Brasilia. 
Brown. Head roughened above and below, the sides nearly straight 
and furnished with a somewhat sharp tooth at the lower angle. -An- 
tenne slender, testaceous. Mandibles nearly similar in both sexes, shorter 
than the head, reddish brown, darker at the tips; furnished internally 
with three teeth below the apex, the inner the smallest. yes dark 
shining olive-green. Ocelli yellow. Palpi blackish. 
Prothoraz longer than broad, strongly convex above, smooth, the sides 
parallel. Mesothorax subcordate. Metathorax transversely quadrate, 
the hinder margin sinuated; a rather deep depression in the middle 
posteriorly. 
Wings smoky in the male, cinereous in the female, in which latter sex 
the anterior pair are decidedly paler towards the base; some of the 
costal areolets towards the apex, a long space in the subcostal area, 
two or three rather large spots below this space (more conspicuous 
in the male), and small dots in the cellules (few and little evident 
in the posterior wings) whitish; longitudinal veins reddish brown ; 
transverse nervules not very numerous, conspicuously blackish. 
Legs pale reddish brown, somewhat obscure at the tips of the tibie. 
Abdomen brown. 
Anal appendices of the male reddish brown ; the superior pair long, 
