Glyphuroplata pluto (Newman)

Eiseman, Charles S., 2014, New Host Records and Other Notes on North American Leaf-Mining Chrysomelidae (Coleoptera), The Coleopterists Bulletin 68 (3), pp. 351-359 : 354

Glyphuroplata pluto (Newman)

On 7 August 2013 in Pelham, Massachusetts, I was given a 3 cm tall specimen of Panicum sp. (Poaceae) that had been pulled up as a garden weed. One of the leaves contained a beetle larva which had mined out all of the mesophyll in the apical 25 mm of a 29 mm long, 3 mm wide leaf. The mine was puffy and crisscrossed with long strands of frass ( Fig. 6 ). The adult beetle emerged on 21 August and fed by scraping small, elongate channels in the underside of an unidentified grass leaf that had been placed in the rearing vial, over an area about 1 cm long near the tip of the leaf. The only previous record of this species that unambiguously refers to a larval host is Frost’ s (1924) report of mines on Panicum capillare L., which includes no description of the mine.

Figures

Figs. 1–6. 1) Baliosus californicus mine in Ceanothus velutinus leaf; 2) Leaf mine in black oak (Quercus velutina) with section of upper epidermis removed to reveal two Baliosus nervosus adults and larval frass pattern; 3) Detail of Baliosus nervosus mine in black birch (Betula lenta) leaf, with ragged hole at lower right; 4) Chalepus bicolor larva mining in deertongue grass (Dichanthelium clandestinum), with frass expelled along the leaf margin; 5) Feeding sign of Chalepus walshii adults; 6) Glyphuroplata pluto larva mining in Panicum leaf, with frass in long strands.