nervule

[ nur-vyool ]

noun

, Zoology.

1. a small branch of a nerve in the wing of an insect.

Word History and Origins

Origin of nervule¹

First recorded in 1885–90; nerve + -ule

Example Sentences

I. Fore wing.—1-5, subcostal nervules; 6, 7, discoidal nervules; 8-10, median nervules; 11, submedian nervure; 12, internal nervure; 13-15, disco-cellular nervules; 16, interno-median nervule; 17, median nervure; 18, subcostal nervure; a, costal nervure; b, costa or anterior margin; c, apex or anterior angle; d, posterior or hind margin; e, posterior or anal angle; f, interior or inner margin; g, base; h, discoidal cell.

From Project Gutenberg

Mr. Edward Doubleday, in his “Genera of Diurnal Lepidoptera,” says, “The Papilionidæ may be known by the apparently four-branched median nervule and the spur on the anterior tibiæ, characters found in no other family.”

From Project Gutenberg

The four-branched median nervule is a character so constant, so peculiar, and so well marked, as to enable a person to tell, at a glance at the wings only of a butterfly, whether it does or does not belong to this family; and I am not aware that any other group of butterflies, at all comparable to this in extent and modifications of form, possesses a character in its neuration to which the same degree of certainty can be attached.

From Project Gutenberg

"Note the anal angle of the secondaries and the argentiferous discal area bordering the subcostal nervule."

From Project Gutenberg

All the wings black, the anterior with a small diaphanous spot near the base, below the median nervure; a larger one before the middle extending from the sub-costal to the radial nervure, divided by the median nervure into two unequal portions, the extremity of the cell marked by a crescent-shaped, metallic blue spot, beyond which are two diaphanous spots, one placed just below the origin of the second sub-costal nervule, the other much larger, divided by the last median nervule.

From Project Gutenberg