256 RHYNCHOPHORA. 
9. Exophthalmus opulentus. (Tab. XI. fig. 11, 2.) 
Eustales opulentus, Boh. in Schénh. Gen. Cure. vi. 1, p. 365". 
Eustales humeralis, Chevr. in litt. ’. 
The scales on the head, rostrum, scape, and legs, and sometimes on the humeral callus also (E. humeralis, Chevr.), 
cupreous or golden, those on the rest of the surface green or golden-green. 
¢. Prothorax subcylindrical; elytra subparallel to near the middle, moderately produced at the apex, the 
apices feebly mucronate. 
@. Prothorax subconical ; elytra broader, widening to the middle, conically produced at the apex, the apices 
dentiform. 
Length 103-18, breadth 31-63 millim. (¢ 9.) 
Hab. Mexico (Mus. Brit.), Playa Vicente, Toxpam, Santacomapan (Sallé), Cordova, 
Jalapa (Hége), Santa Lucrecia, San Rafael Jicaltepec, Tehuantepec City (U.S. Nat. 
Mus.), Teapa, Tapachula (Hége, H. H. Smith), Chiapas (coll. Fry), Oaxaca (Mus. 
Brit., Hoge), Yucatan (coll. Pascoe), 1 Tultepec [Toulcpec] '. 
Var. The scales uniformly green or bluish-green. 
Hab. Mexico, Tapachula in Chiapas (Hége); GUaTEMALA, El Tumbador, Las 
Mercedes, El Reposo (Champion). 
This species has a smooth, slightly raised median line on the rostrum; an incomplete 
impressed line on the prothorax (often obsolete or hidden by the vestiture), the 
prothorax itself sparsely, irregularly, foveato-punctate; the elytra separately rounded 
at the base, with the seriate punctures moderately coarse, somewhat crowded, and each 
placed in a shallow fovea. ZZ. opulentus (the type of which we have seen) is acommon 
insect on the Atlantic slope of Vera Cruz and Tabasco; the variety has been found in 
some numbers in Guatemala, as well as at Tapachula, on the Pacific slope. The 
cupreous humeral spot is evanescent and often obsolete. Fresh specimens are some- 
times coated with a brownish exudation. 
10. Exophthalmus vitticollis, sp. n. (Tab. XI. figg. 12, ¢; 13 9,14 ¢, 
vars.) 
Eustales vitticollis, Chevr. in litt. 
Very like Z. opulentus ; the head, rostrum, scape, legs, a median vitta on the prothorax, the scutellum, and 
sometimes the elytral suture and a humeral spot also, clothed with cupreous or golden-cupreous scales, 
the other scales green or golden-green ; the prothorax distinctly impressed along the median line; the 
elytra transversely flattened or depressed at the base, the seriate punctures usually more conspicuous, 
less approximate, and placed in larger fover. (Fig. 12.) 
Var. a, cerulescens, n. The scales on the head, rostrum, humeri, and legs golden-cupreous, those on the 
prothorax, scutellum, and elytra blue, and those on the apical half of the suture and under surface 
green. (Fig. 13.) 
Var. 8, mutatus,n. The prothorax with two broad stripes on the disc and another on the flanks, and the 
elytra each with a broad stripe on the disc and another on the flank, clothed with brown or brownish 
scales, the scales on the rest of the surface green, (Fig. 14.) 
Length 94-17, breadth 31-61 millim. (¢ 9.) 
