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Show 602 MR. M. JACOBY ON PHYTOPHAGOUS COLEOPTERA. [Nov. 16, Length 4 lines. Head longer than broad, impunctate, the usual frontal elevations almost absent, with a short but deep longitudinal groove. Antennse half the length of the body, black. Thorax about; twice as broad as long, narrowed in the middle, sides moderately flattened and rounded, the posterior margin straight, anterior angles produced into a distinct tooth ; surface impunctate, light fulvous or testaceous. Scutellum black. Elytra slightly widened posteriorly, distinctly margined, the base of each elytron distinctly raised and limited behind by a transverse depression ; surface very minutely punctate, testaceous, with a purplish black subrotundate patch from the base to nearly the middle, but not extendingto the lateral margin. Breast and part of the first abdominal segments, as well as the legs, black ; abdomen fulvous ; claw-joint moderately thickened. Mus. Jacoby. 71. AsPH^ERA DECEMMACULATA, Sp. nOV. Broadly ovate. Light fulvous ; elytra closely and deeply punctate, testaceous, stained with piceous near the apex, each elytron with the base, a spot at the shoulder, two others before and two narrow transverse bands behind the middle, bluish black. Length 4| lines. Head broader than long, vertex swollen and impunctate, divided from the frontal tubercles by a transverse groove, the former rather broad and divided by a narrow central groove. Antennse entirely fulvous, the last four terminal joints shorter than the preceding ones. Thorax three times as broad as long, sides much flattened and separated from the disk by a sinuate groove, the anterior angles much produced and terminating in a distinct tooth ; surface with a few fine punctures. Scutellum fulvous, impunctate. Elytra much widened behind the middle with a distinct flattened margin, closely and deeply punctured ; each elytron with a spot at the shoulder, two others below the base, transversely placed, a narrow transverse line immediately below the middle, and another oblique one near the apex, as well as basal and sutural margins, bluish black; these posterior bands extend to the lateral, but not to the sutural margin ; inflexed margin of the elytra concave, its anterior half fulvous, the posterior one piceous. Underside and legs obscure fulvous, claw-joint rather swollen. Mus, Jacoby. G A L E R U C I N ^ E. Genus DIABROTICA, Chevr. • 72. DIABROTICA DIMIDIATA, Baly. This is one of the largest known species of the genus Diabrotica, varying from five to over six lines. I may add to Baly's short diagnosis, that the head is much longer than broad, the antennse extending to two thirds the length of the body, with the third joint double the length of the second. Thorax with a curved transverse depression at the disk, not extending to the sides, impunctate. Elytra |
