OCR Text |
Show 1885.] PHYTOPHAGOUS COLEOPTERA OF JAPAN. 749 MONOLEPTA FULVICOLLIS, sp. nov. Black below ; head, three lower joints of the antennae, thorax, and legs fulvous ; elytra greenish, closely punctured. Length 1^ line. Head with a few fine punctures, only visible under a strong lens, deeply transversely grooved between the eyes, the frontal tubercles narrowly transverse and strongly raised; antennae black, the basal joints fulvous, second and third joints short and equal. Thorax transverse, fulvous like the head, distinctly but not very closely punctured; the disk with an obsolete transverse depression (accidental?). Elytra not more strongly but more closely punctured than the thorax, the punctuations here and there arranged in lines and distinct to the apices, the latter broadly rounded, not covering the pygidium ; legs fulvous ; tarsi obscure fuscous ; the metatarsus of the posterior legs longer than the three following joints ; posterior tibia? with a distinct spine ; anterior coxal cavities closed. Kashiwagi. A single specimen. MONOLEPTA DICHROA, Harold, var. (?) APICIPENNIS. Black ; head, thorax, and the apex of the elytra flavous; upper surface very finely punctured. Length lg-2 lines. Head impunctate, transversely grooved between the antennae, the latter as long as the body, black, the three basal joints testaceous, the second and third very short and subequal. Thorax nearly twice as broad as long, subquadrate, the sides and the posterior margin slightly rounded, the surface impunctate, flavous or fulvous. Elytra convex, slightly widened towards the middle, black, extremely finely punctured, their apices in shape of a triangular spot, the point of which extends upwards at the suture, flavous. Underside and legs black, the anterior tibiae in some specimens and the knees of all the legs more or less testaceous. Sapporo. Obtained in more than 20 specimens. Amongst all the specimens before me, there are two only which answer to the description given by Von Harold of M. dichroa, which may be but the variety of the normally coloured individuals with fulvous apices of the elytra, of which I have given the above description. Whichever form is looked upon as the variety, there is little doubt about the identity of the present insect with that of Von Harold. Genus A E N I D E A , Baly. In this genus several insects have been placed which certainly do not belong to it. In A. laeta, Baly, which must be looked upon as the type, the anterior coxal cavites are closed; in A. armata, Baly, and A. abdominalis, Baly, both from Japan, the same cavities are open and the last joint of the maxillary palpi is not incrassate. The last-named species ought to find its place in Phyllobrotica, with which it has the absent elytral epipleurae in common as well as all other characters, as the examination of the type in Mr. Lewis's col- PROC. ZOUL. Soc-1885, No. XLIX. 49 |