| 180 HEMIPTERA-HETEROPTERA. 
7. Lygeus formosus. 
Lygeus formosus, Blanch. Hist. Ins. iii. p. 180. 6*; D’Orb. Dict. Un., Atl. Zool. ii, Hém. t. 4. f. 1. 
Lygeus elatus, Stal, Stett. ent. Zeit. xxiii. p. 808. 194”. 
L. (Graptolomus) formosus, Stal, En. Hem. iv. p. 108. 24°. 
Hab. Mexico 23, Vera Cruz}, Tacubaya (Bilimek, Mus. Vind. Cos.); Costa Rica, 
Cache (Rogers).— VENEZUELA, Caracas (Dr. Thieme). 
Pronotum black, without pale central fascia or spots. MELANOPLEURUS, Stal. . 
8. Lygeus bicolor. (Tab. XVI. fig. 17.) 
Lygeus bicolor, H.-S. Wanz. Ins. ix. p. 1957. 
Lygeus bipartitus, Sign. Ann. Soc. Ent. Fr. (8) viii. p. 947. 188°; Stal, Hem. Afr. ii. p. 141. 26°. 
L. (Melanopleurus) bicolor, Stal, En. Hem. iv. p. 109. 33%. 
Lygeus dimidiatus, Walk. Cat. Het. p. 45. 46°. 
Hab. Mexico’ (coll. Sallé, Mus. Berol.), Takubaya (Bilimek, Mus. Vind. Ces.), 
Oaxaca®; GuateMaLa, Capetillo, Quezaltenango, San Joaquin (Champion).—Brazit }, 
MapaGascar 2 3 4, 
Dr. Signoret is the authority for the Madagascar specimens; and if he has not been 
misled, the distribution of this species is at present quite inexplicable. 
9. Lygeus bistriangularis. 
Lygeus bistriangularis, Say, New Harm. Ind. Dec. 1831; Compl. Writ. i. p. 8329. 3+; Town. Glov. 
Ill. Ins. Ord. Hem. p. 45, t. vi. f. 10; Uhler, Hayden’s Surv. Mont. p. 405. 3?. 
Lygeus marginellus, Dall. List Hem. ii. p. 548. 51°. 
Lygeus vicinus, Dall. List Hem. ii. p. 549. 52°. 
L. (Melanopleurus) bistriangularis, Stal, En. Hem. iv. p. 109. 35°. 
L. (Melanopleurus) marginellus, Stal, En. Hem. iv. p. 109. 36°. 
Melanopleurus bistriangularis, Uhler, Bull. U.S. Geol. & Geog. Surv. i. p. 303. 27. 
Hab. Norta America}, Texas?’, California?’, Arizona ?7 (coll. Dist.).—CENTRAL 
America 27; Muxico?°°7 (Bilimek, Mus. Vind. Ces.); GuatemaLa, San Ger6nimo, 
Accituno (Champion); Panama, Volcan de Chiriqui, 2000-3000 feet (Champion).— 
CotomBia?®; VENEZUELA ®°®, La Guayra°. 
This species greatly resembles the preceding, but is much smaller, with the buccule 
less elevated. Prof. Uhler? writes:—“ The L. marginellus corresponds with the type 
described by Say; while the ZL. vicinus, Dallas, is the more common variety, which 
lacks the red lateral margins to the pronotum. Other varieties occur which have only 
a spot of red on the humeral angles; still others with simply a vestige of red on the 
posterior edge of the pronotum.” 
