. Bulletin. Natural history; Natural history. Fig. 202.—Psychomyia flavida pupa, man- dible. Fig. 203.—Polycentropus cinereus pupa, mandible. Fig. 204.—Phylocentropus placidus pupa, mandible. (After Vorhies.) Apex of mandibles without a terminal "whip," fig. 203 2 2. Terminal segment of abdomen with 4 bushy processes, 2 apical and 2 baso- lateral Phylocentropus, p. 54 Terminal segment with only 2 apical bushy processes, fig. 205 3. Fig. 205.—Polycentropus cinereus pupa, api- cal processes. Fig. 206.—Neureclipsis crepuscularis pupa, apical processes. Fig, 207.—Psychomyia flavida pupa,
. Bulletin. Natural history; Natural history. Fig. 202.—Psychomyia flavida pupa, man- dible. Fig. 203.—Polycentropus cinereus pupa, mandible. Fig. 204.—Phylocentropus placidus pupa, mandible. (After Vorhies.) Apex of mandibles without a terminal "whip," fig. 203 2 2. Terminal segment of abdomen with 4 bushy processes, 2 apical and 2 baso- lateral Phylocentropus, p. 54 Terminal segment with only 2 apical bushy processes, fig. 205 3. Fig. 205.—Polycentropus cinereus pupa, api- cal processes. Fig. 206.—Neureclipsis crepuscularis pupa, apical processes. Fig, 207.—Psychomyia flavida pupa, apical processes. 3. Apical lobes of abdomen evenly rounded at apex, fig. 205 Polycentropus, p. 58 Apical lobes of abdomen with mesal margin straight, mesal angle sharp and outer margin curved, fig. 206. Neureclipsis, p. 56 Adults 1. Front tibiae with a preapical spur. ... 2 Front tibiae without a preapical spur 6 2. Both pairs of wings with Rs present and branching from Ra at radial crossvein, fig. 208 Phylocentropus, p. 54 Both pairs of wings with Rs either. 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 Illinois. Natural History Survey Division. Urbana, State of Illinois, Dept. of Registration and Education, Natural History Survey Division
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Keywords: ., booka, bookcentury1900, bookdecade1910, booksubjectnaturalhistory
