Axis: a small process at base of elytron, upon which it turns.    From Wordnik.com.  [Explanation of Terms Used in Entomology] Reference

Complicant: when one elytron extends over the other and partially covers it.    From Wordnik.com.  [Explanation of Terms Used in Entomology] Reference

Commonly one then may set the specimen with the left elytron and wing spread.    From Wordnik.com.  [Practical Taxidermy A manual of instruction to the amateur in collecting, preserving, and setting up natural history specimens of all kinds. To which is added a chapter upon the pictorial arrangement of museums. With additional instructions in modelling and artistic taxidermy.] Reference

When setting beetles or the like, this usually means pinning them through the right elytron.    From Wordnik.com.  [Practical Taxidermy A manual of instruction to the amateur in collecting, preserving, and setting up natural history specimens of all kinds. To which is added a chapter upon the pictorial arrangement of museums. With additional instructions in modelling and artistic taxidermy.] Reference

Their angles were as sharp as ever, and they did not differ in appearance from the other wing and elytron of the same insect which had been left in water.    From Wordnik.com.  [Insectivorous Plants] Reference

The elytron, however, had evidently yielded some nutritious matter, for the leaf remained clasped over it for four days; whereas the leaves with bits of the true wing re-expanded on the second day.    From Wordnik.com.  [Insectivorous Plants] Reference

Although comparatively free from pebbles or lumps of foreign matter, we detect in some of the coarser specimens small particles of mica and grains of other materials, and in one broken specimen the elytron of a small coleopterous insect.    From Wordnik.com.  [Illustrated Catalogue Of The Collections Obtained From The Indians Of New Mexico And Arizona In 1879 Second Annual Report of the Bureau of Ethnology to the Secretary of the Smithsonian Institution, 1880-81, Government Printing Office, Washington, 1883, pages 307-428] Reference

Towards the suture the elytron is raised so as to form a very prominent keel down the back of elytra; the general surface of the elytra is somewhat pustulose, and there are three slightly elevated, longitudinal lines, nearly meeting (but indistinctly) behind on the convex part of each elytron.    From Wordnik.com.  [Journals of Two Expeditions of Discovery in North-West and Western Australia, Volume 2] Reference

The question of whether proper names of people and places have a rightful place in a dictionary is probably an obsolete one: their presence was formerly justified on the grounds that as "words" they are far more frequent than many of the "legitimate" words, like elytron, greave, or mithridatism.    From Wordnik.com.  [VERBATIM: The Language Quarterly Vol XVIII No 3] Reference

Of a yellowish bay colour, the head, thorax, and basal part of the three first joints of the antennae darker; the elytra soft, margined, with three parallel raised lines, not reaching the tip, the outer is on the side and not so distinct as the other two; there is also a short one running from the base of the elytron near the scutellum, and soon forming.    From Wordnik.com.  [Journals of Two Expeditions of Discovery in North-West and Western Australia, Volume 2] Reference

Elytriform: shaped or appearing like an elytron.    From Wordnik.com.  [Explanation of Terms Used in Entomology] Reference