79!) 
NEOPREPTOS; MACHAEROSEMA. By Dr. M. Dkaudt. 
Appendix. 
clazomenia. 
marathusa. 
hippodamia 
pomposa. 
2. Genus: Jfeopreptos n. gen. 
It was unfortunately only after the completion of the Eupterodidae that I had the occasion of examining 
the type of clazomenia having been described as “ Coloradia ”, from the Berlin Museum e Coll. Stattdinger, as 
well as a J belonging to it from the Coll. Bang-Ha as. Both are genuine Eupterotidae and must be appended on 
p. 629 of this volume after Preptos to which genus they are closely allied. Palpi somewhat longer, drooping, 
antennae in the $ slightly longer combed than in oropus-Q, whilst the only $ that exists is without the antennae; 
the figure of marathusa in the Biologia shows them pectinated. Margin of forewing somewhat less oblique than 
in Preptos , neuration of fore wing almost the same, vein 5 removed down to the centre of the cross-vein, 6, 
7 + 8, and 9 arise from the upper cell-angle. On the hindwing 5 arises far below the upper cell-angle, 6 + 7 
on a very short stalk from the upper cell-angle; the bar between the first third of the anterior margin of the 
cell and the costal vein is very strong and distinct. 
Type: N. clazomenia Drc. 
N. clazomenia Drc. (86 f). Dark red-brown, sparsely intermixed with white hair-scales, with a 
subterminal transverse line of white hair-scales, bordered somewhat darker distally, behind it with spots of a 
feeble leaden gloss. Hindwing unicoloured. The larger $ is somewhat more sparsely scaled, the subterminal 
line much less distinct, the spots with the leaden gloss behind it somewhat more whitish especially at the costal 
margin, notcliedly bordered outside. Panama (Chiriqui). 
N. marathusa Drc. I only know from the description in the Biologia. The C e Coll. Bang-Haas 
mentioned above corresponds well with the figure in the Biologia, but on the other hand I take it to be rather 
the T of the species described as clazomenia as which we figure it. Drttce describes marathusa from Costa Rica, 
the present specimen originates from the Chiriqui (Panama) like clazomenia, too. The $ of marathusa is described 
to be uniformly light brown, sparsely scaled, head and thorax dark brown, abdomen light yellowish-brown. 
It may be that Dritce has confounded the two species, and his marathusa belongs as the other sex to 
clazomenia and not to marathusa - + 
2. Subfamily : Syssphingidae. 
This subfamily, also called Ceratocampidae, shows the following characters: a larger head than that of 
the Saturnidae, large globular eyes; proboscis absent or without function. Antennae bipectinated as far as half 
their length or to the ends. Body robust, more Sphingid-like than in the foregoing. Larvae mostly smooth in 
their last stage, without thorns, in the earlier stages with 2—6 thoracal horns and a double median abdominal horn. 
1. Subordinate group: Arsenurinae Jord. 
This group, the greatest part of which belongs to Packard’s Agliinae, differs from the genuine 
Syssphingidae in the broader shape of the wings and a less strong and shorter, sometimes almost slim abdomen. 
The forewing often exhibits a rounded falcate shape at the apex, now and then with notches and angles at the 
distal margin, the hindwing is frequently extended into a projection below the centre of the margin or a long 
tail. Palpi rather well developed, the J antennae mostly shorter or longer pectinated to the ends, sometimes 
only serrated and ciliated. The larvae (see above) mostly pupate smoothly in the soil without a cocoon. 
1. Genus: Macl&aerosema Rothsch. 
It contains 6 large forms with a broad and remarkably high shape of the wings, the forewings with a 
falcate though well rounded apex. Abdomen, compared with the large wings, slim and small, not reaching to the 
centre of the inner margin in the Cell in both wings short and broad; in the fore wing 3 arises shortly before 
the lower cell-angle, 5 above the centre of the cross-vein, 6 from the upper cell-angle. Antennae in both sexes 
pectinated. Formerly known as Rhescyntis Hbn. 
Type: M. hippodamia Cr. 
M. hippodamia Cr. (123 a) is the largest species with the broadest wings, of a more red-brown ground¬ 
colour, with a light median and marginal area; postmedian line mostly only double, sometimes treble; subterminal 
line reddish-yellow, behind it brown ornaments finely scaled bluish-grey, pierced by black fine vein-arrows. 
Guiana to Brazil. pomposa /. n. (134 a) is a wonderful quite dark, deep olive brownish-black form without 
