ZELUS. 257 
pronotum with a large, transverse black patch on the disc of the posterior lobe, and 
the clavus and corium, except sometimes the base, apex, and outer margin of the latter 
narrowly, black. The antenne are entirely black. The legs are black, with the 
intermediate and hind femora in great part, and usually the base of the anterior pair 
also, rufous (the two hinder pairs having one or two rings about the middle, and the 
apex broadly, black). In the males the head, coxe, and abdomen are bright rufous, 
and the ventral segments are banded with black and white; the third antennal joint is 
slightly thickened to about the middle, and the terminal genital segment is armed with 
a long, slender, upwardly curved spine at the apex, in this sex. A male from Mazatlan 
and a female from Milpas are figured. 
9. Zelus fasciatus, n. sp. (Tab. XV. fig. 18, 2.) 
Q. Elongate, narrow, rather shining, very sparsely pubescent; sanguineous, the pronotum black, with a 
broad, transverse, sordid ochreous fascia occupying the anterior half of the posterior lobe; the scutellum, 
legs, and antenne black ; the apical two joints of the rostrum piceous; the elytra with the corium 
ochreous, the produced apical portion excepted, the clavus black, and the membrane fusco-violaceous ; the 
wings smoky; the mesopleura with a small black spot. Head as long as the pronotum, the basal portion 
stout and cylindrical ; antenne very long and slender, longer than the body, the basal joint as long as the 
head, pronotum, and scutellum united; pronotum rapidly narrowing from the lateral angles forwards, 
the latter armed with a slender, acute, outwardly directed spine; the anterior lobe smooth, deeply sulcate 
down the middle posteriorly ; the anterior angles transversely tuberculiform, not prominent; the posterior 
lobe rugulose; the basal margin narrowly reflexed. Llytra extending to a little beyond the abdomen. 
Legs sparsely pilose, very long and slender, all the femora thickened at the base; intermediate femora 
slightly tumid for some distance along the middle beneath. 
Length 14, breadth 22 millim. 
Hab. Panama, Bugaba (Champion). 
One example. Allied to Z. nugax and Z. mimus, but very differently coloured and 
with a longer head, the latter less narrowed behind. The second joint of the rostrum 
is twice as long as the first. The head, abdomen, and under surface are sanguineous ; 
the pronotum and elytra are partly black and partly ochreous; the scutellum, legs, 
and antenne are black. In the coloration of the head the present species resembles 
Z. ruficeps and Z. grassans. 
Z. erythrocephalus, Fabr., from Colombia and Guiana, is probably an allied form; 
but it is described as black, with the head rufous and the wings cyaneous. 
10. Zelus janus. (Tab. XV. figg. 19, 9; 20, 20a, ¢, var.) 
Zelus janus, Stal, Stett. ent. Zeit. 1862, p. 452 (g¢ ¢)'. 
Zelus (Diplodus) janus, Stal, Enum. Hemipt. 11. p. 90°. 
Zelus litigiosus, Stal, Stett. ent. Zeit. 1862, p. 453 (¢) °. 
Zelus (Diplodus) litigiosus, Stal, Enum. Hemipt. 11. p. 90°. 
Hab. Mexico (Mus. Holm. 1234; coll. Signoret},in Mus, Vind. Ces.), Jalapa (Hoge), 
Orizaba (Bilimek, in Mus. Vind. Cws.), Atoyac and Teapa (H. H. Smith), Temax in 
N. Yucatan (Gaumer); Guatemaa, San Gerénimo (Champion). 
BIOL. CENTR.-AMER., Rhynch., Vol. Il., August 1899. 33 
