The Entomologist's Monthly Magazine (Volume 35) (Paperback)

This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1899. Excerpt: ... ECTOPSOCUS BRIGGSI, A NEW GENUS AND SPECIES OF PSOCIDM FOUND IN ENGLAND. BY ROBERT McLACHLAN, F.R.S., 4c. ECTOPSOCTTS, n. g. General characters as in Peripsocus, Hag.: differs especially in the costal and dorsal margins of the anterior wings being subparallel, hence scarcely dilated in the apical portion; in the pterostigma in these wings being long-oblong (or enclosed in a nearly regular parallelogram), hardly dilated at the end; and the inner radial branch and the inner cubital branch (Reuter's nomenclature) are confluent (or nearly so) at a point; in the posterior wings there is still more difference, because the radial sector and the cubitus are widely distant, connected by a transverse nervule., Ectopsocus Bbiggsi, -. sp. Above dingy yellowish, beneath and lege paler, almost whitish. Eyes blackish. Antennae not longer than the wings, the thread somewhat fuliginous and strongly pilose, 3rd joint very long, 1st and 2nd joints pale, but the 2nd darker above. Head with some brownish marks behind the ocelli. Abdomen above (in life) with the segments margined with brownish, and with a brownish median longitudinal line, pygidium wholly pale. Wings hyaline; the membrane colourless: in the anterior pair the pterostigma is slightly opaque and finely granulose; at the termination of each nervure on the margins it an elongate, triangular, blackish or fuliginous, spot, a smaller discal spot of the same colour at the point where the radial and cubital branches meet; neuration and margins hairless, the nervures mostly dusky (pale in certain lights), but distinctly Vt blackish at their ends, and the pterostigmatic nervure is also V blackish at each end, together with the strong "hook" or "tooth " on the under-side of the inner nervule: posterior wings ...