. Bird blow flies (Protocalliphora) in North America (Diptera: Calliphoridae), with notes on the Palearctic species. Protocalliphora. 270 Protocalliphora Figures ocellar tubercle median ocellus preocellar area. Fig. 1. Head of Protocalliphora female, frontal view. Bristles: fr, frontal; i vt, inner vertical; oc, ocellar; o vt, outer vertical; pc 0, proclinate orbital; poc, postocellar; pocl, postocular; re o, reclinate orbital; vb, vibrissa. Fig. 2. Head of Protocalliphora male(a, frontal view, b, side view), showing the measures used, ml, width of frons at narrowest part; m2, maximum width of


. Bird blow flies (Protocalliphora) in North America (Diptera: Calliphoridae), with notes on the Palearctic species. Protocalliphora. 270 Protocalliphora Figures ocellar tubercle median ocellus preocellar area. Fig. 1. Head of Protocalliphora female, frontal view. Bristles: fr, frontal; i vt, inner vertical; oc, ocellar; o vt, outer vertical; pc 0, proclinate orbital; poc, postocellar; pocl, postocular; re o, reclinate orbital; vb, vibrissa. Fig. 2. Head of Protocalliphora male(a, frontal view, b, side view), showing the measures used, ml, width of frons at narrowest part; m2, maximum width of head (measured from dorsal view); m3, maximum length of eye; m4, ocellar span; m5, width of parafacial (opposite parafrontal-parafacial angle); m6, vibrissal interval; m7, height of 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 Sabrosky, Curtis W. (Curtis Williams), 1910-; Bennett, Gordon F; Whitworth, Terry L. Washington, D. C. : Smithsonian Institution Press


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