. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. BRUES AND MELANDER: CLASSIFICATION OF INSECTS 279 Medial cell much wider than adjacent cells; male antennae with flagellar joints cylindrical and long-stalked. (Zygoneura, Eur.) ZYGONEURINiE 25. Second basal cell minute, much shorter than first basal cell due to the proximal location of the apparent m-cu crossvein (Fig. 507), radius three-branched, the middle branch short and commonly ending in Ri near its tip; Sc complete; basal and middle sections of media continuous. (Bolitophila (Fig. 507), Bolitophilella). BOLITO


. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. BRUES AND MELANDER: CLASSIFICATION OF INSECTS 279 Medial cell much wider than adjacent cells; male antennae with flagellar joints cylindrical and long-stalked. (Zygoneura, Eur.) ZYGONEURINiE 25. Second basal cell minute, much shorter than first basal cell due to the proximal location of the apparent m-cu crossvein (Fig. 507), radius three-branched, the middle branch short and commonly ending in Ri near its tip; Sc complete; basal and middle sections of media continuous. (Bolitophila (Fig. 507), Bolitophilella). BOLITOPHILID^I Second basal cell nearly or quite as long as first, sometimes con- fluent with it 26 Sâ£3. 510^ â *⢠511 a, u, Mi- Figs. 506-512. Mycetobiidae, Bolitophilidee, Diadocidiidae, Ditomyiidae, Ceroplatidae, Macroceratidse 506. Palaeoplatyura, wing (Johannsen) Mycetobiidae. 507. Bolitophila, wing (Johannsen) Bolitophilidae. 508. Macrocera, wing. Macroceratidse. 509. Mycetobia, wing (Johannsen) Mycetobiidae. 510. Diadocidia, wing (Johannsen) Diadocidiidae. 511. Ditomyia, wing (Johannsen) Ditomyiidae. 512. Ceroplatus, wing. Ceroplatidae. 26. Radius three-branched; if the basal cells are coextensive and the crossveins transverse then the Sc meets the costa beyond the basal fourth of the wing 27 Radius two-branched (Fig. 510); Sc short, evanescent; basal cells coextensive and more or less fused, the two crossveins in the same straight line perpendicular to the wing-axis; mesonotum with rows of bristles. Holarctic. (Diadocidia (Fig. 510), Arachnocampa) DIADOCIDIID^I. 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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Keywords: ., bookauthorharvarduniversity, bookcentury1900, booksubjectzoology