50 
TRITONACLIA; MEGANACLIA; THYRETES. By Dr. A. Seitz. 
14. Genus: Tritonaclia Hmps. 
This genus, being confined to 2 structurally different Ethiopian species, already approaches the fol¬ 
lowing genus, which is likewise composed of larger species being very scantily scaled and indistinctly marked. 
It differs from the preceding genus in the species showing broader and more abundantly spotted forewings. 
kcfersieini. T. kefersteirsi Btlr. (5 b). Blackish-brown; the forewing exhibits 6 yellow spots (1 in the cell, 2 be¬ 
low it, 3 in the marginal area) as well as a yellow ray at the base of the hind-margin; the hindwing shows 
a large oval hindmarginal spot and 2 minute spots before the centre of the distal margin. Expanse of wings: 
40 mm. Madagascar. 
embescens. T. etubescens Hmps. Described from a specimen without abdomen; 8 small hyaline spots arranged in 
2 rows (of 4 spots each) extend right across the centre of the brown forewing showing a slight purple re¬ 
flection and before the apical area; hindwing with 2 small central spots behind the crossvein. Legs purple. 
Expanse 30 mm. Uganda. 
15. Genus: Meganaelia Aur. 
Separated from the preceding genera by the absence of the proboscis. The £ antennae are serrate, 
those of the $ with fine bristles. The cross-vein of the forewing is very deeply angled as also in the Tri¬ 
tonaclia. No tibial spurs. There are 3 species known, the habits of which, in contrast with the other Syn- 
tomidae having so far been dealt with, seem to be nocturnal. -—- The larvae are able to run very fast. 
sippia. M. sippia Ploiz (5 b). Wings very scantily scaled, almost hyaline, with a postmedian row of 5 hyaline 
spots in the forewing, 3 in the hindwing. At once discernible by its size (expanse GO mm) and diaphanousness. 
Cameroon and Congo, not very rare. 
perpusilla. M. perpusilla Wkr. ($ = carnea Hmps.) (5 c). The $ is somewhat like the preceding, more robust, 
also somewhat more densely irrorated, the hyaline spots of the forewing are much larger; in the much 
smaller J the spots are a little differently arranged: one spot near the base, one more distally in the sub¬ 
median area, 2 before the apical area; in the the hindwing is smaller, shorter and of a dingy white. Gabun, 
xkngola. 
microsip- M. microsippia Strd., from West Africa (Mabungo), looks like a small sippia. The hyaline spots are very 
pin. indistinct in a dull cross-band. Expanse of wings: 36 mm. — minor Hmps. (5b), from Uganda, is slightly 
larger and has same more white in the hindwing. 
16. Genus: Tliyretes Bsd. 
Here the proboscis is also absent and the stunted palpi are lowered, but the <$ antennae are bipecti- 
nate, those of the $ serrate. The legs exhibit very small spurs at the end of the tibiae. 
■negus. Th. negus Wallgr. (5 c). In the typical from the wings are intersected by such large hyaline spots 
that only a narrow yellowish-brown colouring remains at the costa, cross-vein, and distal margin. The body 
phasma. is also dull whitish, marked with a yellowish brown. Abyssinia. — phasma Btlr. is a form occurring in Nyassa 
Land, with somewhat increased yellowish brown in the cell, whereby the hyaline cellular spot is reduced in 
size. •— Similar specimens occur along the whole western coast of Africa, from Senegambia to South West 
Africa. 
caffra. Th. caffra Wallgr. (5 c) is quite similar to negus, but the cell of the forewing is darkened except a 
minute hyaline spot, the hindmarginal part of the forewing being likewise darkened, but the hindwing as 
misa. in negus. Cape Colony. -— misa Strd. (5 c) is the form from Togo, in which also the hyaline spot below 
the cell of the forewing has disappeared, the greatest part of the hindwing being also obscured. 
7n on tana. Th. montana Bsd. (5 c) is much more robust than the preceding, with a very broad, variegated 
thorax. Hindwing as in typical negus, but the dark places somewhat more intensely coloured; on the fore¬ 
wing only the hyaline spots in and below the cell are large, all the other spots being very small. Cape Co¬ 
lony and Zulu Land. 
hippotes. Th. hippotes Cr. (5 d) is almost exactly like montana, but the 5 minute spots in the apical area of 
the forewing are flown together forming a small flawed band. Cape Colony. 
angolensis. Th. angolensis Gaede sp. n. ,,Similar to monteiroi, abdomen orange-yellow. In the forewing the spot 
above vein 2 is very much faded. In the hindwing the spot below the cell is quite extinct. 24 mm. Angola.“ 
(M. Gaede, ined.). 
monteiroi. Th. monteiroi Btlr. (5 d). Shape more Syntomis- like, thorax much more delicate than in montana or 
hippotes. The hyaline spots are large, almost entirely removing the nut-brown ground-colour; abdomen honey- 
coloured with fine dark segmental margins. Angola, Congo. 
trichaeiifor- Th. trichaetiformis Zerny (5 cl). This small species has an expanse of only 25 mm. Wings dark brown 
mis. with larger hyaline spots in the disc and 3 smaller hyaline spots in the cell, before the apex and above the 
centre of the hind-margin. Zanzibar. 
