. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. CLASSIFICATION OF INSECTS 339 a. Palpi one-jointed; antennae with slender terminal arista; mesopleural bristles wanting; abdomen with eight segments b Palpi two-jointed; antenna; with or without a thickened terminal style, very rarely with a terminal arista c b. Marginal cell open; very slender species with few hairs and bristles; claws long, pulvilli absent; ovipositor without whorl of spines. (Leptogaster, Euscelidia, Psilonyx) LEPTOGASTRIN^E Marginal cell closed and petiolate; less slender, or robust species, brist
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. CLASSIFICATION OF INSECTS 339 a. Palpi one-jointed; antennae with slender terminal arista; mesopleural bristles wanting; abdomen with eight segments b Palpi two-jointed; antenna; with or without a thickened terminal style, very rarely with a terminal arista c b. Marginal cell open; very slender species with few hairs and bristles; claws long, pulvilli absent; ovipositor without whorl of spines. (Leptogaster, Euscelidia, Psilonyx) LEPTOGASTRIN^E Marginal cell closed and petiolate; less slender, or robust species, bristly rather than hairy; pulvilli present; ovipositor often with a crown of spines. (Asilus, Cerdistus, Dysmachus, Erax (Fig. 553), Mallophora, Philodicus, Ommatius, Bactria ( =Promachus), Proctacanthus, Tolmerus) ASILlNiE c. Marginal cell open, or rarely closed at extreme tip; mesopleural bristles wanting. {DASYPOGONINM)1 d Marginal cell closed; mesopleural bristles present; male abdomen with seven (rarely six) segments; species often stout and very hairy. (LAPHRIlNAl)1 f. 553 555 Figs. 553-555. Asilidae. 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
