Part 3

Acalyptrata: those muscid flies in which alulae are absent or rudimentary.

Acanthus: a spine, spur or prickle.

Acaudal -ate: without a tail.

Accessory: added, or in addition to.

Accessory carinae: in Orthoptera the lateral carinae of the face.

Accessory cell: a cell not commonly present in the group; in some orders of definite location as, e.g. in Lepidoptera, usually a small cell at the end of the subcosta, giving rise directly or indirectly to veins 7 to 10:= 1st radius 2 (Comst.); = areole.

Accessory glands: any glands opening into the ducts of the reproductive system.

Accessory sac: a glandular structure of the female reproductive system containing a sticky secretion.

Accessory subcostal vein: the vein given off from the subcosta and branching toward the apex of the wing in Perlidae.

Aceous or aceus: suffix; similar to, or of the nature of.

Acephalous: without a head.

Acerata: arthropods without true antennae Arachnids and Limulus

Acetabular caps: Hemiptera; the coxal cavity.

Acetabuliform: like a shallow saucer with more or less incurved sides.

Acetabulum: the cavity into which an appendage is articulated; specifically the coxal cavity, - q.v.; also applied to a cup-like cavity in the sucking mouth of maggots.

Achreioptera: ordinal term proposed for the coleopterous family Platypsyllidae.

Achromatic: free from color; tissue that does not stain readily.

Acicular: needle-shaped; with a long, slender point.

Aciculate: a surface that appears as if scratched with a needle.

Acidotheca: the pupal sheath of the ovipositor.

Acini: granulations, like those on a blackberry: the terminal secreting tubes of glands.

Acinose -ous: a surface set with acini.

Acone: applied to compound eyes in which the individual ocelli have no crystalline cone or lens; see eucone. {Scanner's note: this is no longer a valid usage for the word "ocelli". Currently the term is. See "ocellus" and "ommatidium".}

Acoustic nerve: connects the auditory pits or other organs of hearing with special ganglia.

Acridophagus: preying and feeding on grasshoppers.

Acrostichal bristles: Diptera; two rows of bristles on the middle of the dorsum; specifically, minute peculiar bristles on the dorso-central region of Dolichopodidae.

Aculeata: Hymenoptera; the stingers, including bees and wasps.

Aculeate: prickly; armed with short, sharp spines; specifically, in Hymenoptera furnished with a sting which is a modified ovipositor and connected with a poison sac.