Publ. 26. VI. 1935. NEONEMORIA; TRICENTRA. By L. B. Prout. 73 
Central America to Peru and again in Brazil, the type locality of the species. Warren’s type of thetis was 
from Costa Rica. 
D. deaurata Warr. (9 b). Smaller than thetis, hindwing rounded, with the posterior cell-dot not white- deauraia. 
pupilled, forewing with cell-dot smaller, postmedian line punctiform, scarcely denticulate. Ecuador; also 
known from Colombia, Bolivia and probably Central America and Trinidad. 
D. rufipuncta Warr. Near distracta (9 a), rather broader-winged and with hindwing scarcely angled rufipuncta. 
(merely showing a rounded change of direction). Hindleg short, with 1st tarsal joint dilated and with a hair- 
pencil. Forewing with 2nd subcostal connate with 3rd; celldot large and reddish. Underside closely similar 
to that of distracta. Brazil: Tijuca, 1 $. 
D. mys Prout (9 b) recalls Z. subviolaria (9 a) in its extremely strong gloss and to some degree in its mys. 
shape, but has the forewing less acute and is grey and devoid of markings, the fringe paler but not yellow¬ 
ish. French Guiana; also from the Amazon. 
D. dentatilinea Warr. (9 b) is the only brown species, in size and shape near deaurata, the lines better dentatili- 
developed, both wings with a single cell-ring. Venezuela and extending to Colombia and Ecuador. nea - 
4. Genus: Efeonemorisa Warr. 
Near Dithecodes , of which it might be regarded as a subgenus. Hindtibia of $ without spurs, but with 
a strong hair-pencil; of $ 2-spurred, as in Dithecodes. Forewing with 2nd subcostal (dividing wall of areole) 
from the cell. Genitalia of with some differences from all the Dithecodes yet investigated, especially in the 
two-pointed gnathos and saccus. 
N. thalassinata Snell. (= virescens Th.-Mieg, plana Warr.) (9 b). Recognizable by the glossy whitish thalassina- 
green wings, extremely weak markings and broadly reddish costa of forewing beneath, as well-as by the struc- ia - 
ture. Colombia (the type locality), Peru and Bolivia. —- rasa Warr. is a smaller form from Venezuela, British rasa. 
Guiana and Ceara (Amazon). — decolor Warr. (as ,, Dithecodes”) will almost certainly prove to be an aberration decolor. 
of this with the costal region beneath more broadly reddened; most points in the description agree, but I have 
only seen a few poor specimens of this eastern race. 
5. Genus: Tricentra Warr. 
An attractive genus of exclusively Neotropical Sterrhinae, rich in species and mostly very homogenous; 
notwithstandig considerable variety in wingform; Palpus and antenna nearly as in the 3 preceding genera. 
Hindtibiae, on the other hand, favouring those of Rhodastrophia : with 3 well developed spurs (but see the 
first two species), $ with 4. Areole double, with 2nd subcostal arising from the cell; only the last two species 
—- which will probably have to be removed — with areole simple. The small size, generally bright and varie¬ 
gated colouring and very frequently pure white cell-spots or dots render the genus easy of recognition; but 
the structure should also be always studied, as otherwise a few gay species of the Sterrha group will probably 
be sought here. 
T. spilopera sp. n. (9 b). Hindtibia of with both the proximal spurs present, very short. The violet- spilopera. 
grey wings are marked with slender red lines; termen and fringe yellow, with red terminal dots and conspi¬ 
cuous central red spot on fringe; an indefinite yellow wash between anal angle and cell on forewing only. Fore¬ 
wing beneath largely rosy, hindwing beneath grey, the cell-marks and fringe-spots shown. Taperinha, near 
Santarem (Dr. H. Zerny), only the type knowm. 
T. fumata Warr. (9 b) is distinguished by the predominantly dark purple-grey hindwing and proximal fumata. 
patch of forewing. A pretty aberration has the bright red colour which normally separates the narrow buff 
border of the hindwing from the dark ground-colour more or less strongly extended. French Guiana. So far 
as I have examined them, the have always both the proximal spurs present in the hindtibia (genus Ram¬ 
mer is Warr.)-, but they possibly vary (cfr. albiguttata). 
T. albiguttata Warr. (9 b) differs from fumata in the much less dark violet-grey basal areas and the albiguttata. 
very dark bar which separates these from the variegated (buff and red) distal parts. French Guiana (loc. typ.), 
Fonteboa and La Oroya (Peru). Warren attributes to his type $ the presence of 4 hindtibial spurs, as in 
fumata, so I suppose the structure varies; most albipunctata possess but 3. 
T. euriopis Dyar, from Panama, is said to differ in having “the white spot on hindwing much larger" euriopis. 
than in albiguttata, but its size and shape are not given. Two specimens before me from the Maroni River, 
similar to fumata but with the hindwing somewhat intermediate in colour towards that of albiguttata and bearing 
a very large (at least 1 mm in diameter) circular white cell-spot, may belong with it. 
VIII 
10 
