HELIURA. By Dr. M. Draudt. 
167 
Forewings black, at the base a blue dot. Hindwings black, towards the base thinly scaled, whitish. Expanse 
of wings: 38 mm. Chiriqui. The following species may possibly belong to it as a subspecies. 
D. spreta spec. nov. (24 e) greatly reminds us of certain Opharus- species, particularly procroides Wkr. : apreta. 
the forewings are brown, towards the base of a somewhat more olive-yellowish tinge with darker veins 
and a diffuse darkening at the cell-end; the blackish hindwings are diaphanous in and below the 
cell. The anterior body is blackish brown, on the vertex and at the bases of the wings spotted 
silvery blue; the metathorax exhibits a white spot. The abdomen is above black, beginning from the second 
segment with lateral, orange-yellow bands, from the 4th ring these spots are united to complete belts across 
the dorsum. Described according to 3 from Colombia (January 1910 Canon del Tolirna; May 09 San Antoioo 
•— captured by the light of a lamp -— and from the Upper Rio Negro: Fassl). 
D. flaviventralis limps. Brownish-black; the palpal base, 2 small spots in the neck and a broad median flaviven- 
st.ripe on the venter orange. The forewings show a whitish oblique band across the cell-end from the subcosta trails. 
to the submedian fold, another one behind it between the lowest subcostal vein and the upper median vein. 
Hindwings black with a hyaline disc. Expanse of wings: 45 mm. Venezuela. 
D. monotona Byar greatly approximates jlaviceps, but it is smaller, much less distinctly marked, monotona. 
and the border of the hindwing is considerably narrower; the forehead is greyish-brown. Mexico (Santa Rosa). 
D. testacea Bruce (24 f) has brown forewings with a lighter spot being very faintly indicated by a testacea. 
thinner scaling in and below the cell and a similar oblique band behind the cell which is beneath much more 
distinct. Hindwings diaphanous with a broad, black margin. The body is greyish-brown, the first palpal joint 
and vertex olive-yellow; forehips and venter orange. Guatemala and Panama. 
D. klagesi Rothsch. greatly resembles testacea, but it is darker and more distinctly marked. The body Jclagesi. 
is brownish-grey with a blue lustre. The basal palpal joint and the vertex orange, not olive-yellow. Forewings 
dark brownish-grey; the proximal spot is only situate below the median. Hindwings bluish-black, in the disc 
hyaline. The $ has an entirely orange-yellow head and lighter, yellowish grey-brown forewings. Length of 
forewings: 22 mm. Guiana; Venezuela. 
D. infraalba Rothsch. Anterior body above blackish brown, in the neck and minute spots on the infraalba. 
collar carmine. Abdomen above sooty black with a dark blue lustre. The underside is white. Forewings blackish- 
brown, in the basal half subcost ally with hyaline stripes; an indistinct, postdiscal transverse band whitish 
diaphanous. Hindwings black with a hyaline discal band. The ^ i> s similar, but more sooty brownish-grey. 
Length of forewings: 19 mm. Venezuela; Cayenne. 
D. rhodocrypta Bruce. The anterior body is above greyish-brown; spots on the collar and the upperside rhodo- 
of the abdomen are black, as well as the legs. The whole underside is yellowish-white. Fore wings dark brown, crypta. 
in the cell and near the apex spotted greyish white. Hindwings hyaline, broadly bordered with black. Expanse 
of wings: 32 mm. Venezuela. 
D. tetilla Bogn. (= elegans Lathy, bimaculata Rothsch.) (24 e) is a pretty, very deviating species: tetilla. 
The deep brownish-black forewings exhibit a hyaline spot in the cell, another one behind it; the hyaline hindwings, 
being traversed by lustrous blue veins, are bordered with black; underneath with an intense blue lustre. Head 
black, spotted white, neck carmine; thorax blackish-brown, hips white. Abdomen above metallic blue, under¬ 
neath white. Colombia; Ecuador; Peru (Macrapata). Probably also (Napata) hoettgeri Bruce belongs to it 
as a synonym (vide p. 141). 
144. Genus: Heliura Btlr. 
Extremely near to the next genus, distinguished chiefly by the middle radial of the hindwing rising 
from above the lower cell-angle, and by the absence of the hairing on the abdominal base and sides. The upper 
median vein of the forewing always rises distinctly below the cell-angle, the lower radial veins from it or also 
on a short pedicle, the upper radial distinctly from below the upper cell-angle. The cell of the hindwing is long, 
the upper median vein with the lower radial come from the lower cell-angle always distinctly petioled, the 
1st radial and the subcostal vein rise unpetioled from the upper cell-angle. The species partly greatly resemble 
Eucereon- species, a small part of them, however, looks most remarkably different. 
H. rhodophila Wkr. ( = tetragramma var. Wkr., pyrrhosoma Btlr., solicauda Btlr.) (24 f). Head rhodophila. 
and thorax brown, with brick-red spots and stripes; the red abdomen exhibits black lateral lines, the first and 
last segment are black. The brownish forewings with brick-red veins are spotted black and exhibit hyaline 
