74 
TRICENTRA. By L. B. Prout. 
mimula. 
albisignata. 
neomysta. 
aurilimba- 
ta. 
vino sat a. 
cnephoda- 
mas. 
flavimargi- 
nata. 
ascotista. 
angulisig- 
na. 
pyrbola. 
bisignata. 
quadrigaia. 
unimacula. 
ignefumosa. 
debilis. 
fulvifera. 
consequent. 
ascantia. 
T. mimula Warr. (9 c) recalls in its coloration some Old-Worlcl Ptochophyle and Chrysocraspeda. Cell- 
mark of forewing black, of hindwing very narrow and weak, yellowish. —- ab. albisignata nov. has the cell- 
mark of the hindwing enlarged, white, shaped as in bisignata Warr. (9 c). La Oroya, Rio Inambari, S. E. Peru. 
T. neomysta sp. n. (9 c). Considerably smaller (scarcely 16 mm), hindwing rather narrower, proximal 
spur of hindtibia relatively shorter; darker and much less rosy purple both above and beneath, thorax and 
abdomen dark-mixed above, the pair of bluish-white cell-dcts on each wing set in a black spot. Lower Amazon: 
Taperinha, near Santarem, August 1927 (Dr. H. Zerny), 1 <$. 
T. aurilimbata Warr. (9 c) differs from mimula in its rounder hindwing, deeper rose-colour, double 
whitish cell-mark of forewing and reduced yellow borders. French Guiana. A faded $ in coll. Marten be¬ 
longs to the same or a closely similar species, the cell-mark of the forewing perhaps single or strigiform. Alto 
da Serra, S. E. Brazil. 
T. vinosata Warr. (9 c). Much, duller purple, only flushed with red about the pale cell-marks. Stri¬ 
kingly distinct in shape. French Guiana. — cnephodamas subsp. nov. Larger (21—24 mm), the projections 
of the wing-margins not quite so extreme, the terminal line at these points less diffused on to the fringe; the 
red suffusion in median area generally extended. Jaragua do Sid (Fr. Hoffmann), type in the Tring Museum. 
T. flavimarginata Warr., from Paramba, is intermediate in shape and colour between mimula and 
vinosata, but nearer in both respects to the latter. Cell-marks punctiform and white, not linear and yellow¬ 
ish. — ascotista subsp. nov. is somewhat larger (22—23 mm), the hindwing with the bend at R 1 so slight as 
to be inappreciable, the forewing with the black irroration not intensified at base of costa and apex, etc. Jaragua 
do Sul (Fr. Hoffmann), a pair in Tring Museum. 
T. angulisigna Dogn. (9 c). Coloration nearly as in quadrigaia (9 c), but with the cell-marks reduced, 
that of the hindwing narrow and angular. Distributed from French Guiana (the type locality) to Venezuela 
and Fonteboa. — - pyrbola subsp. nov. is larger (23 mm), quite agreeing with bisignata in size and coloration; 
the red markings bright, but not very ample on the forewing, much constricted between median and sub- 
median veins, the white cell-marks rather large. Jaragua do Sul, Santa Catharina (Fr. Hoffmann), 2 $$ in 
the Tring Museum. 
T. bisignata Warr. (9 c), founded on a single from Tinguri, Carabaya, S. E. Peru, is very distinct 
in the presence of tw o large and irregular white marks on the hindwing. 
T. quadrigata Feld. (9 c) is on the w r hole extremely constant in the size and shape of the white spots 
(one on each wing). First made known from the Amazons, but apparently much commoner in the Guianas 
and reaching Venezuela. A record for N. Argentina is more questionable. 
T. unimacula Dogn. (9 d). Darker than quadrigata , the white cell-mark of the hindwing larger and 
less angular, that of the forewing greatly reduced, punctiform. French Guiana. Single specimens from Vene¬ 
zuela and S. E. Peru, larger and slightly different in some details, may represent races. 
T. ignefumosa Warr. (9 d). A small species, rounder-winged than angulisigna (9 c), the reddisli parts 
brighter, separated from the purple-grey by a darker bar, the angled mark of the hindw'ing yellowish and 
inconspicuous. French and Dutch Guiana. 
T. debilis Dogn. (9 d). Distal margins more convex, the darkest band standig between the purple and 
the yellou r parts and projecting into the latter about the 1st median; cell-dots whitish, double. From the same 
localities as ignejumosa. 
T. fulvifera Dogn. “16 mm. Rosy grey; forewing with the whole central region from the base nearly 
to the subterminal line red-brown; an antemedian line, strongly rounded outwards, dotted with black-brown 
on the veins, farther from the base at inner margin than at costa; 2 yellow cell-dots; subterminal rounded, 
nearer the distal margin about veins 3, 4, 5, marked by interneural spots in its anterior part; fringe yellow r . 
Hindwing with central region similarly red-brown; antemedian waved; 2 yellow cell-clots; subterminal sinuous, 
thick anteriorly.' - ’ St. Laurent du Maroni, 1 <J. 
T. consequens Warr. (9 cl). The pairs of cell-dots whitish, partly confluent, the orange ground-colour 
shading into purple-grey costally and apically on forewing and distally on hindwing. Somewhat variable. 
French Guiana (loc. typ.) and the Amazons, also (in differentiable races?) in S. E. Peru and Bolivia. 
T. ascantia Druce (9 cl). More mottled than consequens, the dark patch outside the cell of forewing 
well developed; cell-dots confluent on hindwing only. Guatemala. 
T. ellima Schaus. A relatively large species, with distal margins distinctly bowed in the middle; pre- 
ellima. 
