170 HETEROCERA. 
well-defined red spot at the end of the cell: head, thorax, and abdomen reddish-brown, the underside of 
the abdomen pale yellow ; legs brown; the front of the thorax and five lines extending from the collar 
to near the base pale primrose-colour ; antenne reddish-brown. Expanse 44 inches. 
Hab. Mexico, Guanajuato (Boucard, in mus. D.). 
This species is closely allied to the North-American E. regalis (Fabr.) well figured by 
Grote and Robinson (Ann. Lyc. New York, viii. t. 12), from which it differs in the 
entirely different coloration of the secondaries; in having the thorax striped, and the 
yellow marks at the base entirely absent ; and also in the general greyer colour of all the 
wings. . splendens appears to be very rare, I have only seen a single male example 
which was brought home by Boucard upon his return from Mexico some years ago. 
DRYOCAMPA. > 
Dryocampa, Harris, in Hitchcock’s Report on the Geology &c. of Massachusetts, p. 591 (1834) ; 
Walker, Cat. vi. p. 1495. 
The name Dryocampa was first used by Harris for Phalena senatoria, Abbot and 
Smith, and Bombyx rubicunda, Fabr., but without definition ; characters were given it 
by Walker (loc. cit.), who included in it six species, all of them from America. The 
range of the genus extends from the United States to Brazil. 
1. Dryocampa dissimilis. (Tab. XV. figg. 93,109.) 
Adelocephala dissimilis, Boisd. Ann. Soc. Ent. Belge, xv. p. 93". 
Hab. Mexico, Oaxaca ', Jalapa (Hoge). 
I am indebted to Mons. C. Oberthiir for his kindness in sending me Boisduval’s type 
of this species for comparison. ‘The figures are taken from fresh specimens from Jalapa, 
where it appears to be common. I have only seen specimens from the above-mentioned 
localities. 
2. Dryocampa assimilis, sp.n. (Tab. XV. fig. 5.) 
Primaries and secondaries uniform reddish-brown, the secondaries a shade the darkest; the underside slightly 
pinkish brown; a small white dot at the end of the cell of the primaries: head, antenne, thorax, and 
abdomen reddish-brown, exactly the same colour as the wings. Expanse 2 inches. 
Hab. Mexico, Santa Ana in Chihuahua (Buchan-Hepburn). 
“In Oak Woods” (Buchan-Hepburn). This species is most nearly allied to D. 
dissimilis, from which it is at once distinguished by its uniform colour. 
ADELOCEPHALA. — 
Adelocephala, Herrich-Schaffer, Sammlung aussereur. Schmett. p. 78, t. 17. figg. 77, 78. 
Othorene, Boisduval, Ann. Soc. Ent. Belge, xv. p. 82. 
' This genus now contains about fifteen species, all from Tropical America ; seven have 
been recorded from our country, four of which are only known to me by description. 
Boisduval’s genus Othorene will not stand, he having founded it upon Adelocephala 
