42 
APHANTOCEPHALA; ARTONA. By Dr. K. Jordan. 
spectabilis. C. spectabilis Rothsch. (8 a). Purple-black, in the cf the frons, the fore part of the collar, the legs 
and the underside of the abdomen dirty pale yellow, in the ? head, thorax, breast and legs glossy blue, 
abdomen beneath yellow, above as in the cf with thin yellow rings. Forewing at the end of the cell with 
yellow transverse band, which is somewhat shorter in the cf than in the ? and does not quite reach the 
hindmargin. Hindwing with large yellow central area, which reaches from the base nearly to the distal 
margin and at the base is extended to the hindmargin. Beneath both wings with blue submarginal band. 
The 3. subcostal of the forewing present, short, in all the other forms of this genus absent. — British 
New Guinea. 
46. Genus: Apliantoceplisiln Fldr. 
Head broad; frons almost square, projecting very little; palpus short; antenna in cf and ? pectinated, 
the pectinations of the distal segments shorter. Forewing much longer than hindwing, the 3. subcostal 
wanting, the 4. and 5. subcostals long stalked, the 1. radial from the cell, the 1. median far before the 
angle of the cell, sometimes the 1. subcostal anastomosed with the costa and the 2. subcostal from the 
angle of the cell or stalked with the 4. and 5.; the subcostal of the hindwing coincident with the costa, 
then branching off at a right angle, the cell straightly truncate, somewhat angled between the 2. subcostal 
and 2. radial, the 1. radial absent, lower angle of the cell obtuse, the 2. radial proximal to the angle. — 
Moluccas, New Guinea and Solomon Islands. Easy to recognise by the right angle which the discocellular 
of the hindwing forms with the costa. 
moluccaram. A. moluccarum Fldr. (8a). Black-brown, abdomen and antenna above somewhat metallic blue- 
green, underside of the abdomen yellow. Wings unicolorous black-brown, not densely scaled. — Amboina, 
found by Doherty in February. 
A. centralis. Body and wings black, with purple and green sheen, legs partly dirty grey-yellow. 
Both wings with white central area. In New Guinea and on the small neighbouring islands, and perhaps 
diluta. the Solomon Islands. — In diluta Rothsch ., from Dutch New Guinea (Kapaur), the white area in both wings 
centralis, is large, that of the hindwing being broader than the brown-black distal margin. — centralis Rothsch., from 
British New Guinea and the D’Entrecasteaux Islands, has smaller white areas; the area of the forewing does 
not extend distally beyond the base of the 2. median and that of the hindwing is at most as broad as the 
suffusa. distal marginal band. — suffusa subsp. nov. (8 a) comes from the Louisiade Islands St. Aignan and Rossel. 
The white area of the forewing is more distal than in the preceding subspecies or smaller, the area of the 
hindwing especially on the upper surface is washed over with black, and consequently less distinct than in 
the other forms. 
solitaria. A. solitaria spec. nov. (8a). Like the preceding species, but entirely purple-black; wings centrally 
thinly scaled, semitransparent, without white scales. — New Georgia, Solomon Islands; 1 c f in the Tring Museum. 
fragilis. A. fragilis Rothsch. (8 b). Head, collar, basal half of the abdomen, the whole underside of the body, 
the legs and a broad band running over both wings yellow, this band beginning at the costal margin near 
the apex, distally twice curved on each wing. Rest of the wings and the antennae purple; tip of the 
abdomen purple-black. — Ron Island, Geelvink Bay, July 1897. 
D. Subfamily: Zygaeninae. 
Foretibia always with spur, which usually extends beyond the tip of the tibia. Tongue present. —- The 
species are all small insects, only a few exceeding our Zygaena filipendulae in size. The wings are usually elongated; 
the hindwing is often small and in many species the upper radial (Herrich-Schaeffer’s vein 6) is wanting. Some 
forms, especially those with vitreous patches, are deceptively like certain Syntomids and some of them have been 
described as such; but they are distinguished by the distinct upper hindmarginal vein. The larvae of only a few 
forms are known. They live free on leaves and pupate in a tough, thick cocoon, which is fastened on a somewhat 
rolled-in leaf or on a stem. Several species live on the cocoanut palm and allied monocotyledonous plants and 
sometimes occur in such numbers as to do serious damage. In general the exotic Zygaeninae are rare in collections; 
they are mostly only taken in quite small numbers. These small forms easily escape the observation of the tropical 
collector, whose eye is diverted by the butterflies, and many of the species also appear to occur sporadically and 
only to fly a short time. 
1. Genus: Art oust Walk. 
Antenna of the cf pectinated, simple towards the tip, in the ? beneath compressed lengthwise, 
feebly dentate. Palpus long. Legs slender, hindtibia with 2 pairs of spurs, of which the first pair is placed 
in the middle or in the second third of the tibia and is always at a distance from the terminal pair. The 
1. radial of the hindwing absent, the 2. median rather near the angle of the cell, the 3. radial and the, 
1. median stalked together (Brachartona) or separated, intergrades effacing the separation of the species into 
two groups by this character. — Larva found by Piepers on Bambusa and Cocos, as well as another plant 
