| OCR Text |
Show 1876.] MR. M. J A C O B Y O N N E W COLEOPTERA. 817 distance from the base, and the sixth and seventh at a short distance from the apex ; all the interstices between the ridges deeply impressed with shining green punctures. Legs and tarsi brown. The mesosternal process is much developed, slightly curved and pointed. Length 7 lines; width 5 lines. Hab. Columbia. This beautiful insect was collected by Mr. Wallis, and is in the collection of Dr. Baden, in Altona, and my own. ENSIFORMA, nov. gen. Elongate, parallel; head small, perpendicular ; eyes convex, small; palpi clavate, with a short acute terminal joint; antennae as long as the body, with the first seven joints (the second excepted) slender, elongate-triangular, the next three greatly widened at their apex and broadly flattened, the terminal joint long, and pointed at the apex. Thorax subquadrangular, narrowed towards the base, the angles obtuse ; scutellum broad triangular. Elytra wider at the base than the thorax, the sides parallel, punctate-rugose at the surface. Femora and tibiae of equal length and size, the first but little widened in the middle ; tarsi with the first joint as long as the two following joints together; claws bifid. Type Ensiforma carulea, sp. nov. This genus, which bears a close affinity to the genus Diabrotica, will be easily distinguished from that and other genera by the extreme length of the antennae and their flattened terminal joints. 22. ENSIFORMA CEERULEA, n. sp. Elongate, parallel, dark blue above, fuscous below; the head, thorax, the scutellum, and legs flavous. Head transversely grooved, between the eyes joined by a short longitudinal groove in the middle of the face; first four joints of antennae fuscous above, flavous beneath, the other joints entirely dark brown ; eyes black. Thorax with the anterior and posterior margins nearly straight, slightly narrowed from behind the middle to the base, the angles obtuse ; above but little convex, with two shallow depressions on the disk near the sides, shining, together with the scutellum impunctate. Elytra a little broader at the base than the thorax, distinctly margined from the shoulder towards the apex ; closely punctate and partially transversely rugose, of a dark bluish green colour surrounded at the sides by a narrow light flavous margin, which widens a little at the extreme apex ; another short streak of the same colour is situated on each elytron between the shoulder and the scutellum. Underside, the breast excepted, fuscous, as are also the fore legs and posterior femora ; tibiae and tarsi of the last two pair of legs dark brown, covered, as well as the whole underside, with yellowish and rather long hair. Length 4 lines. Hab. Brazil. One specimen in m y collection. |
