. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. BRUES AND MELANDER: CLASSIFICATION OF INSECTS 305 low, apparently single-jointed because the minute basal joints are set in a cavity of the third joint, provided with a long, apical or subdorsal, three-jointed arista; palpi projecting, not jointed; hind legs long, their femora compressed; first and second abdominal segments separate; small, humpbacked, quick- running flies of characteristic form. Widespread, many species, mostly holarctic; including most myrmecophilous genera of flies, some of which are specialized an
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. BRUES AND MELANDER: CLASSIFICATION OF INSECTS 305 low, apparently single-jointed because the minute basal joints are set in a cavity of the third joint, provided with a long, apical or subdorsal, three-jointed arista; palpi projecting, not jointed; hind legs long, their femora compressed; first and second abdominal segments separate; small, humpbacked, quick- running flies of characteristic form. Widespread, many species, mostly holarctic; including most myrmecophilous genera of flies, some of which are specialized and degenerate forms. (See couplet 155). HYPOCERA PHORID^I. Figs. 568-572. Phoridae, Lonchopteridee 568. Paraspiniphora (Verrall) Phoridae. 569. Chaetoneurophora (Cole) Phoridse. 570. Megaselia, wing. Phoridae. 571. Lonchoptera, wing of female. Lonchopteridae. 572. Lonchoptera, male (Verrall) Lonchopteridae. a. Propleura? lateral in position, visible from the sides, prothoracic spiracle not visible from above b Propleurge small, anterior in position, the humeri formed by the mesonotum, prothoracic spiracle visible from above; female usually wingless; ant-guests. (Platyphora (= Mnigmatias), -ffinigmatistes, Psyllomyia). (fiNIGMATIINffl). PLATYPHORIN-ffi b. Tibiee usually with one or several long preapical bristles; lower frontal bristles when present curving obliquely upward; meso- pleurse usually undivided; both sexes winged. (Phora (= Tri- neura), Chaetoneurophora (Fig. 569), Conicera, Diplo- neura, Hypocera, Paraspiniphora (Fig. 568).. PHORINiE Tibia? without any long preapical bristles, bare or ciliate on the. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Harvard University. Museum of Comparative Zoology. Cambridge, Mass. : The Museum
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