HAMMATOCERUS.—HOMALOCORIS. 227 
the base of the elytra broadly banded with whitish or pale ochreous. The ventral 
segments 2-5 are broadly depressed, as well as sulcate, down the middle in both 
sexes, and the depressed portions of the second and third are densely pilose in 
the males. 
1. Hammatocerus luctuosus. (Tab. XIII. figg. 24, ¢; 24a, antenna; 243, 
abdomen from beneath.) 
Hammatocerus luctuosus, Stal, Ofv. Vet.-Ak, Férh. 1854, p. 287°; Stett. ent. Zeit. 1862, p. 4557; 
Enum. Hemipt. ii. p. 100°. 
Hab. Mrxico (Mus. Holm.123; Mus. Vind. Ces.), Presidio de Mazatlan (orrer), 
Xautipa in Guerrero (H. H. Smith), Tepic, Atoyac in Vera Paz (Schumann), Orizaba 
(Bilimek, in Mus. Vind. Ces.), Jalapa (Hoge), Temax in North Yucatan (Gaumer) ; 
British Honpuras, R. Hondo, Belize (Blancaneaur); GuatemMaLa, El Tumbador, 
El Reposo, Capetillo (Champion); Panama (Boucard), Bugaba (Champion). 
We have received thirty-eight specimens of this species. It seems to be not 
uncommon in Yucatan. The larva was sent with the perfect insect from Presidio by 
Forrer and from Yucatan by Gaumer; it has the tarsi 2- (instead of 3-) jointed, and 
the hind femora to near the tip, as well as the others at the base, rufous. Stal? 
mentions a variety with the connexivum immaculate, but I have not seen a specimen 
of it. A male of H. ductuosus from El Reposo is figured. 
2. Hammatocerus cinctipes. 
Hammacerus cinctipes, Stal, Ofv. Vet.-Ak. Férh. 1858, p. 443°. 
Hammatocerus cinctipes, Stal, Enum. Hemipt. ii. p. 100’. 
Hammatocerus mixtus, Costa, Ann. Mus. Zool. Nap. ii. p. 80, nota (1864) °. 
Hammatocerus purcis, Walk. Cat. Hemipt. Heteropt. viii. p. 65 (part.) *. 
Hab. Nicaragua, Chontales (Janson: 3); Costa Rica, Volcan de Irazu (Rogers: ¢ ). 
—CotomBiA! 4, Bogota?; VENEZUELA*; ?Gu1ANA?; Brazit; Perv 4. 
In this species all the femora have a broad rufous or rufo-testaceous band near 
the base, the insect thus differing from the closely allied H. purcis (Drury), of the 
Southern United States, which has the hind femora only banded with red. H. cinctipes 
is larger than H. luctuosus, and has the head and the anterior lobe of the pronotum 
more finely granulate, and the base of the elytra more broadly whitish. 
HOMALOCORIS. 
Platycoris, Perty, Del. Anim. artic. Bras. p. 175 (1834) (nec Guérin). 
Homalocoris, Perty, loc. cit. p. 216; Stal, Hemipt. Afr. i. p. 102; Enum. Hemipt. 1. p. 100. 
This well-marked genus appears to have its head-quarters in Mexico and Guatemala, 
one only of our four species being common to Central and South America. The ventral 
29* 
