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DESCRIPTIONS OF NORTH AMERICAN HYMENOPTERA, No. 2

Published online by Cambridge University Press:  31 May 2012

E. T. Cresson
E. T. Cresson
Affiliation:
Philadelphia.
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Extract

1. Pezomachus Pettitii. N. sp.– ♀ .–Head piceous-black, face rufo-piceous, the middle longitudinally prominent; marrdibles fuscous; antennæ longer than head and thorax, pale ferruginous, dusky at tips; thorax nearly as long as abdomen, piceous-brown, paler laterally and beneath; nodes subequal; legs entirely piceous-brown; paler abdomen ovate beyond first segment, shining piceous-black; first segment narrow, slightly dilated behind the lateral tubercles which are not prominent, apical margin pale; sometimes the heas, thorax and abdomen are entirely piceous-black,except the pale band at apex of first segment which is always conspicuous in this species; ovipostor short, about as long as first abdominal segment. Length .14–15 inch.

Type
Articles
Information
The Canadian Entomologist , Volume 4 , Issue 4 , April 1872 , pp. 61 - 64
Copyright
Copyright © Entomological Society of Canada 1872

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