TYDIDES.—MELANOLESTES, 2138 
TYDIDES. 
Tydides, Stal, Hemipt. Afr. ii. p. 113 (1865) ; Ofy. Vet.-Ak. Férh. xxiii, p- 251 (1866); Enum. 
Hemipt. ii. pp. 105, 108, and iv. p. 56. . 
A monotypic Tropical-American genus, extending northwards to the Mexican State 
of Vera Cruz. It is closely allied to Rasahus, Amy. et Serv., but differs from it in 
having the metapleural sulcus distant from the margin. The pronotum is smooth and 
shining, and the anterior lobe is without oblique sulci on the disc. The meso- and 
metasternum, and the three basal segments of the abdomen, are carinate down the 
middle, the carina not extending so far downwards in the female as in the male. 
1. Tydides rufus. (Tab. XIII. fig. 1, 2.) 
Peirates rufus, Serv. Ann. Sciences Nat. xxiii. p. 218 (1831) °. 
Pirates rufus, Amy. et Serv. Hist. Nat. Ins. Hémipt. p. 325’. 
Tydides rufus, Stal, Ofv. Vet.-Ak. Férh. 1866, p. 255°; Enum. Hemipt. ii. p. 108+. 
Reduvius brachiatus, Perty, Del. Anim. Art. Brasil. p. 173, t. 34. fig. 10 (1834) °. 
Pirates brachiatus, Walk. Cat. Hemipt. Heteropt. vii. p. 99°. 
Rasahus sulcicollis, Uhler, P. Z. S. 1894, p. 210 (nec Serv.) ”. 
Hab. Muxico 3 4, Jalapa (Hoge), Teapa in Tabasco (H. H. Smith), Temax in N. Yucatan 
(Gaumer); GuatemaLa, Lanquin and Teleman in Vera Paz, Kl Tumbador, Las Mercedes, 
Pantaleon, Mirandilla (Champion), Escuintla (Mus. Vind. Ces.); Nicaragua, Chontales 
(Janson).—VuNezvELA’; Guiana! 234; Brazin?+5; Antittes, Grenada’, 
Found in plenty by myself at Mirandilla, on the Pacific slope, and rarely in the 
Polochic Valley. A specimen from Mirandilla is figured. 
MELANOLESTES. 
Melanolestes, Stal, Ofv. Vet.-Ak. Férh. xxiii. p. 251 (1866); Enum. Hemipt. ii. pp. 105, 107. 
An American genus including several extremely closely allied forms*. It chiefly 
differs from Rasahus in having the apical portion of the anterior and intermediate tibie 
angularly dilated beneath, the spongy fossa being preceded by a small prominence. 
The elytra are blackish and immaculate, the wings whitish-hyaline or fusco-hyaline. 
1. Melanolestes morio. (Tab. XIII. figg. 5, ¢; 5a, anterior leg.) 
Pirates morio, Erichs. in Schomb. Reisen Brit. Guiana, iii. p. 613 (1848) * (nec Walk.). 
Melanolestes morio, Stal, Ofv. Vet.-Ak. Forh. 1866, p. 259°; Enum. Hemipt. i. p. 107°. 
Pirates picipes, Walk. Cat. Hemipt. Heteropt. vii. p. 97 (part.) *. 
Hab. Mexico, Atoyac in Vera Cruz (Schumann), Valladolid and Temax in Yucatan 
(Gaumer).—Guiana 1-3, 
* Pirates degener, Walk., from San Domingo, belongs here. 
