384 Mr. R. I. Pocock on neio yellow spots to both sternum and abdomen ; legs pale reddish brown. Long. 12 millim. Hah. Delagoa Bay. Olenecamptus tessellaia, sp. n. Ferruginous, marked and spotted with cretaceous. Head long, with a distinct central striation ; a prominent marginal ridge between antenniferous tubercles, with a narrow central and two broad lateral cretaceous fasciae, all united in front; antennae much longer than the body, basal joint robust and very coarsely punctate, third joint more than three times as long as the first, apex of fourth joint and the whole of remaining joints darker brown. Pronotum longer than broad, transversely striate, constricted posteriorly, profoundly sulcate before anterior and posterior margins, with a broad cretaceous fascia on each lateral margin. Scutellum sub-quadrate, impunctate. Elytra densely and coarsely punctate ; each elytron ornamented with four large, irregularly-shaped, cretaceous pubescent spots — one at base, second longest, about middle, third deeply notched, fourth smallest, near apex ; humeral angles subprominent, lateial margins slightly con-cavely sinuate, apices very obliquely rounded. Body beneath griseously pubescent. Long. 13 millim. JJab. Delagoa Bay. LX. — Descriptions of some new Scorpions from Central and South America. By R. 1. PocoCK. The species from Central America recorded in this paper will be redescribed and fully figured in the ' Biologia Cen-trali-Americana.' Family Biithidae. Genus TiTYUS, C, Koch. Tityus Championiy sp. n. ?. — Colour yellow, indistinctly variegated with black; mandibles and frontal portion of carapace, as well as its lateral margin, inf'uscate ; tergites indistinctly mottled, blackish laterally, with a bright yellow posterior spot, in addition to this spot there are four similar spots on each side of the middle line ; posterior median portion of tergites with
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