OCR Text |
Show 1894.] nEMIPTERA-HETEROPTERA OF GRENADA. 177 and more convex insect than the male. Occasionally the knobs on the superior surface of the connexivum are absent. When alive these insects are grass-green above, with the corium more or less bright wine-brown. Specimens from San Domingo seem to be usually more rugose upon the pronotum and wing-covers and flatter near the anterior angles of the pronotum than in the series which I have examined from the United States and Mexico. Specimens from Grenada are on the average more smooth than those from San Domingo. In m y collection there is a graded series which takes in the various modifications from E. cornuta, Burm., with narrow and acute scutellum and coarse deep punctures, through the moderately smooth and remotely punctate E. albirenis, to the smooth E. sigillata with obsolete punctures on the pronotum and scutellum. 2. EDESSA RUGULOSA, sp. nov. Form of E. rufo-marginata, D e Geer, but of the size of E. medi-tabunda, Fabr., which it somewhat resembles. Bright green, moderately polished, wrinkled on the head, pronotum, base of scutellum, and base of costal area, with the hemelytra wine-brown, and the lines of the clavus, reticulations of tip of corium, most of the costal area, and underside of the body yellow. Head short, minutely but distinctly punctate, bordered on the sides and tip with yellow; antennae honey-yellow, the basal joint much thicker than the following ones, the second shorter than the third, the fourth only a little longer than the third; rostrum rufo-flavous, reaching midway between the fore and middle legs, and fitting into the fork of the mesosternum. Pronotum transverse, coarsely, deeply, irregularly punctate in somewhat transverse series, the sunken space in front of the callosities and behind the eyes densely and finely punctate ; callosities and their diagonal continuation smooth, impunctate ; lateral margin reflexed, smooth, yellow, the humeral angle prominent, a little rounded, smooth, the post-humeral submargin sunken, with two lines of close punctures ; the posterior margin a little arcuated, the submargin bordered with a line of fine sunken punctures ; pleural border beneath the lateral margin linearly callous, grooved and punctate in continuity with the underside of head. Sternal pieces remotely punctate; the mesosternal plate corresponds with that of E. meditabunda. Scutellum moderately long, very moderately convex at base, depressed next the tip, less coarsely but deeply, not closely punctate, somewhat rugose on the base and middle, more finely punctate posteriorly, the sides slenderly bordered with yellow, and the tip acute. Clavus narrow, punctate with red in two approximate lines, the margin cariuately elevated; corium bordered next the clavus with two strong punctate ridges, which are hollowed inwardly by two corresponding lines of rufous sunken punctures ; the punctures of the disk fine and even, those of the base coarser; costal area contracted at base, set near the base with small, yellow, transverse callosities between the reddish punctures ; membrane bronze-brown with the veins darker. Legs honey-yellow, obsoletely punctate, |