. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. CLASSIFICATION OF INSECTS 411 26. 27. two rows, of. thorn-like protuberances; palpi recurved at apices. (Fig. 739, Pachyrrhina) TTPtJLIM: Abdominal segments rarely with distinct thorn-like protuberances, usually with weak hairs; palpi straight, not recurved at apices. LIMONIIDjE Orthorrhapha Pupa enclosed within the last larval moult 27 Pupa free 28 Thoracic segments one and two each with a smooth plate on dorsum; apical segment with a transverse series of short teeth. 751 !752 753 754 755 756 Figs. 751-759. Orthorrha
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. CLASSIFICATION OF INSECTS 411 26. 27. two rows, of. thorn-like protuberances; palpi recurved at apices. (Fig. 739, Pachyrrhina) TTPtJLIM: Abdominal segments rarely with distinct thorn-like protuberances, usually with weak hairs; palpi straight, not recurved at apices. LIMONIIDjE Orthorrhapha Pupa enclosed within the last larval moult 27 Pupa free 28 Thoracic segments one and two each with a smooth plate on dorsum; apical segment with a transverse series of short teeth. 751 !752 753 754 755 756 Figs. 751-759. Orthorrhaphous Diptera, Pupae 751. Mydas, side view (Greene) Mydaidae. 752. Coenomyia, dorsal view (Greene) Coenomyiidae. 753. Rhachicerus, dorsal view (Greene) Solvidae. 754. Xylophagus, dorsal view (Greene) Xylophagidae. 755. Psilocephala, dorsal view (Malloch) Therevidae. 756. Dasyllis, dorsal view (Greene) Asilids. 757. Chrysopila, side view (Malloch) Rhagionidae. 758. Sparnopolius, side view (Malloch) Bombyliidae. 759. Rhamphomyia, side view (Malloch) Empididae. near base on ventral surface; pupal skin largely or entirely with- drawn from puparium during emergence. (Fig. 707, Solva). S6LVIDiE Thoracic segments without smooth dorsal plates; pupal skin not withdrawn from puparium during emergence. STRATIOMYIID^E 28. Prothorax with a large aperture mesad of and connected with the spiracle TABANIDjE. 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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