232 HETEROCERA. 
1. Hepialus pharus, sp.n. (Tab. XXIV. fig. 12, ¢.) 
Male. Primaries dark brown, mottled with lighter brown, with a large dark brown patch below the end of the 
cell, beyond which are two dark brown bands crossing from the costal margin to the anal angle, several dark 
brown dots on the costal margin, and a silver streak near the base, another at the end of the cell, and a third 
close to the apex ; secondaries dark brownish-black, semihyaline close to the base, the base thickly covered 
with reddish-brown hairs ; the underside of both wings uniform dark brown, with a few light-coloured 
spots along the costal margin of the primaries: head, thorax, and abdomen dark brown, the latter thickly 
covered with reddish-brown hairs at the base ; antenne very minute, of a dark brown colour ; legs brownish- 
black, the hind tibie clothed with a brush of long yellowish hairs. Expanse 27 inches. 
Hab. Guatemata, Las Mercedes 3000 feet, Duefias (Champion); Costa Rica, Irazu 
6000 to 7000 feet (Rogers). 
The specimen from Las Mercedes is the one from which our figure is taken; it is 
rather darker and more distinctly marked than the others; the individual from Costa 
Rica is considerably paler in colour, the one from Duefias being intermediate between 
the two. 
DALACA. 
Dalaca, Walker, Cat. vii. p. 1559 (1856). 
Walker included five species in this genus—one from Chili, two from Africa, and 
two, doubtfully, from Brazil. I take the first-named, D. nigricornis, Walk., as the 
type of the genus; the African species appear to be very doubtfully congeneric. 
Numerous other species of Dalaca are now known, and I here describe one from 
Guatemala. 
1. Dalaca assa, sp.n. (Tab. XXIV. fig. 10.) 
Primaries pale reddish-brown, crossed by very many bands of small spots of aslightly darker colour; secondaries 
uniform pale brown, shaded with reddish-brown at the apex; the underside of both wings brown: head, 
thorax, and abdomen dark brown, with some reddish-brown hairs at the base of the thorax; antenne and 
legs dark brown. Expanse 2 inches. 
Hab. GuateMaLa, Volcan de Atitlan 2500 to 8500 feet, Pantaleon 1700 feet 
(Champion). 
This species is closely allied to an undescribed one from Ecuador in my own collection. 
PHASSUS. 
Phassus, Walker, Cat. vii. p. 1566 (1856). 
Six species were placed in this genus by Walker—one from Mexico, three from 
Tropical South America, one from Africa, and one from Asia. Phassus now includes 
several additional species, most of which are from the New World. I have to record 
five species from our country, three of which are described as new. 
Most of the species of this genus appear to be exceedingly rare, though one is 
distributed over a very extended range of country. 
