Publ. 16. IV. 1915. 
SYNTRICHURA. By Dr. M. DraudL 
121 
The costa of the hindwings is white with a black stripe below it, being expanded towards the margin to such 
an extent that the whole rest of the wing turns black here. Expanse of wings: 25 to 27 mm. Ecuador. 
D. chrysocraspis Hmps. (19 e) has a black body with an orange-yellow underside, and lateral spots chrysocras- 
on the abdomen, varying in extent, the tarsi being orange, too. The proximal and costal margins of the l y ' 18 - 
forewings are orange; the costal margin of the hindwing is white. Bolivia. 
D. doeri Schaus (19 e) has a black body; forehead and palpi anteriorly orange, collar and shoulder- doeri. 
covers striped orange, also the hips and tarsi. Prothorax laterally spotted carmine. The abdomen exhibits 
orange spots at the sides, the venter is quite orange. Wings hyaline with fine black veins, distal and proximal 
margin; at the rise of the middle radial a black dot. Costa of the hindwing white, below it a black stripe, fringes 
orange. Expanse of wings: 26 mm. Brazil (Sa. Catharina) to Paraguay. 
D. philocles Druce (19e) is recognizable by the black abdomen being spotted white laterally and philocles. 
ventrally. In front below the shoulders on each side a small red spot. The costal margin of the hindwing is 
white-haired. Panama (Chiriqui) and Brazil (Sao Paulo). 
D. bivittata Wkr. (19 e) is striped in a bright orange on the sides of the blackish-brown abdomen, iivitiata. 
on the hindwings and shoulder-covers; the costal and proximal margins of the forewings also show orange- 
yellow stripes. Brazil (Santos); Paraguay; Argentina; nearly all the year round particularly on compositae. 
D. aterea Schaus (19 e) strikingly resembles bivittata, but it has a whitish-haired proximal margin on aterea. 
the under surface. It differs besides from the said species by a much narrower black distal margin of the 
forewing; the proximal margin is entirely black, the orange colouring being confined to the extremest base. 
The hindwings are narrower, quite orange-yellow, only traversed by a black longitudinal stripe in the fold, and 
the margin black, fringes yellow, costa white, the proximal margin in the A hyaline, with blackish hair. The 
body is coloured as in bivittata, but the extent of the orange colour seems to vary greatly: one is above 
almost entirely black, only the underside and tarsi being orange, whereas the $ lying before me is prepon¬ 
derantly orange. Brazil (Casa Branca; Matto Grosso). 
D. aurantiipes Rothsch. Body, legs and antennae orange, thorax marked yellow and black, the two auranlnpes. 
first abdominal rings are margined black. Wings yellow-reddish hyaline with orange-brown margins and discal 
spots. Length of forewings: 11 mm. Amazon. 
D. hoffmannsi Rothsch. Body unicolorously blackish-brown, legs orange. Wings yellow-reddish hoffmannsi. 
hyaline, the distal half of the costa orange, the proximal half hyaline, the distal margin brown, the proximal 
margin red-brown. Length of forewings: 14 mm. Peru. 
D. crassum Zerny differs by much broader hindwings from all the other species. Black, abdomen crassum. 
with a blue reflection. Yellow are the two first joints of the palpi, the sides of the head, and shoulders, 
on the abdomen above the rings 5 to 7 with a broad, black median band; the whole ventral side is yellow, 
the legs yellow and black. Antennae very long-combed, abdomen broad and stout. Wings faintly yellowish 
hyaline with fine black veins, margins and apical spots. Expanse of wings: 28 mm. Colombia (Bogota). 
75. Genus : Btlr. 
Antennae thickened in the middle and above roughly haired. Second and third abdominal rings strangu¬ 
lated. On the forewings the lower radial vein is absent; the middle one rises below the middle of the disco cellular. 
The 3rd and 1st subcostal veins rise at the same place from the 4th, the 5th from the cell. On the very 
narrow hindwings with a long discocellular, the third radial vein is likewise absent, the 1st median and middle 
radial vein rise from the lower cell-angle, the upper radial from below the upper cell-angle. 
S. melaena Dogn. (19 f) is easily recognized by the unicolorously black body; only on the head and melaena. 
collar there are scarce whitish, tiny hairs interspersed. The last quarter of the antennae and a dot below 
their base are white. Peru (Cajon; Hillapani). 
S. placida Druce (19 f) has a black body. The front side of the palpi and dots on the forehead placida. 
are white; vertex and collar with a bluish-green lustre; prothorax laterally spotted carmine. Wings hyaline 
with fine black veins and margins. Expanse of wings: 22 mm. Guatemala. 
S. virens Btlr. (19 f) has a bright bluish-green lustre on the body; the abdomen exhibits above vixens. 
on the strangulated segments a white dorsal stripe and lateral and ventral spots. — In reba Druce the prothorax reba, 
is spotted carmine. Both the forms fly in French Guiana and Brazil, the latter was also found in Colombia, 
Venezuela, and to the north as far as Panama (Chiriqui). 
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