COAMORPHA; NORAPELLA; CEPHALOCLADIA. By Walter Hopp. 
1077 
h) Antennae colourless , ochre or black. 
8. Genus: Coamorpha Dyar. 
The 1st radial branch (vein 11) of the forewing anastomoses here with the subcostal vein (12) as in 
Proterocladia from which it differs externally in the colourless antennae. Regarding the sexual armature of the 
A, the genus is isolated from the Trosiinae and resembles rather the Megalopyginae. The uncus is a curved 
smooth thorn. The socii are vent-rally broadly connected with the rectum (scaphium). One species only: 
C. innoxia Schaus (= glutina Schaus). Head and chest grey, mixed with white. Abdomen dark grey, innoccia. 
with some white hairs above. Forewing greyish-brown; a white spot at the base, a white streak below the cell, 
interrupted at veins 2 and 3, a white streak above the basal half of the inner margin, some white ones at the 
distal inner margin, at the outer half; fringe white with dark spots at the end of the veins, and faint, terminally 
white markings between the veins. Expanse of wings: 32 mm. Costa Rica. I have not seen the types which 
are in the Washington Museum. 
9. Genus: Norape] la Hopp. 
The genus Norapella represents the most primary stage of development of the male 10th ventral seg¬ 
ment in the Trosiinae. The tergit-appendages, uncus and socii are still paired here, and besides one species 
exhibits a paired gnat-hos as the appendage of the sternit. The species are uniformly white, rather small, with 
smooth forewings which exhibit a black costal streak beneath, and light antennae. 
N. bipennis Hopp (160 b). The has an expanse of 11% to 13mm and differs from the other species bipennis. 
in the 1st cubital vein and 3rd median vein (veins 3—4) of the hindwing being short-stalked instead of separated. 
The paired uncus-hooks are distantly separated from each other, whereas they are close together in the other 
species. Socii slender, appendent only to the extreme base of the uncus-thorns, extending into the interior 
of the 10th segment; a paired gnathos, chitinized blackish-brown, outside granular, globular, but smooth and 
somewhat concave inside. The harpes are very small, delicate, hairy, near the 10th segment. The sacculi are 
large, apieally on one side pinnate by lineary lancet-shaped chitine-bristles, presumably distributing scent. 
Taperinha near Santarem, Amazons, discovered by Zerny (Vienna). 
N. rhadina Dogn. ( = fassli Hopp), described as a Trosia. The £ (expanse: 20—22 mm) has also the rhadina. 
uncus-thorns divided as far as the base, but they are close together. The socii are fused laterally with the uncus- 
thorns on half their length, their continuation reaching the length of the uncus-thorns. Pacho near Muzo, 
Colombia. 
N. gracilis Dogn. (described as Archylus) is similar to rhadina , of about the same size, with broad, basally gracilis. 
coalescent socii from the interior sides of which the intensely chitinized uncus-thorns arise; the lateral lobes 
of the socii are feebly chitinized. Peru, Bolivia. 
N. parva Schaus (described as Trosia). The A (expanse: 17—20 mm) chiefly differs from rhadina in parva. 
the lateral tips of the socii-lobes being intensely chitinized at their ends. South Brazil. 
10. Genus: Cephalocladia Hopp. 
Cephalocladia is characterized by a peculiar structure of the 10th male ventral segment. The latter 
consists of a roundish massive, slender, somewhat curved staff at the end of which there is a broader, roundish, 
dark-chitinized head which is bivalvular on its ventral side. On the right and left sides of this uncus composed 
of staff and head, there is rectangularly to the uncus, one flat chitine-listel each, the socii. The species have 
the same exterior as Norapella and are externally hardly discernible from each other. 
C. werneri Hopp is purely white, forewing without stripes, veins faintly white. The sacculi are flat, werneri. 
intensely chitinized, dentiformly bent over inwards at the end, widened basally. From the Rio Caquet-a, South 
Colombia. 
C. mossi Hopp differs in shorter (longer in werneri) valves of the uncus-head, shorter and broader socii, mossi. 
and much larger and broader harpes. Para (Brazil) and Guiana. 
C. fulvicornis Dogn. (described as a Hysterocladia) of which I only know the photograph of the male fulvicornis. 
sexual armature has falciformly curved slender sacculi. From the Upper Amazons. 
