Report of the State Entomologist on Injurious and Other Insects of the State of New York (Volume 23rd 1898) - Softcover
Synopsis
This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1915 edition. Excerpt: ... be recognized by the possession of a distinct crossvein in connection with the first tarsal segment being shorter than the second. The crossvein is so characteristic of the group that a. little experience suffices to separate members from all other Itonididae except in the case of a few anomalous forms. This crossvein usually runs parallel to costa, or nearly so, though in Colpodia and its close allies the crossvein may be at a considerable angle to costa. This latter is also true, but in a different manner, in Winnertzia. Diallactes Kieff. is remarkable for the possesion of a rudimentary branch near the basal third of subcosta. The third vein in this group extends Well beyond the apex before fusing with costa, except in Winnertzra. The very slender, linear wings of Colpodia are unique in the faI1111'-The antennae exhibit great diversity of structure, presenting, as (10 Other organs, types of extreme development. The stem of the fiageuate segments 11 some males has a length three times that of the basal enlargement. The setae are extremely long and 111 some f0_1'II_15 present an arrangement not far removed from the charaC'B6!'15t1 crenulate whorls found in Campylomyza. The circumfill fife more aberrant than in any tribe aside from the Itonididinariae. Thest; organs are frequently set at a considerable distance from the face 0 the segment, in this respect approaching Schizomyia, and dlsplay a marked tendency toward distal prolongation. This is Pamcularly well marked in Winnertzia with its minute horseshoelike structur65, nails and all, on opposite faces of the segments. The claws may be simple or unidentate and in some species are distincty SW_01_1en subapically. The male genitalia present most striking (l.1V1'.S1'C16S%...
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