abdomen alone; sometimes to thorax and abdomen combined.

Bombifrons: front of head with a blister-like protuberance.

Bombous: blister-like; spherically enlarged or dilated.

Bombycinous: a very pale yellow like fresh spun silk.

Boreal: from or belonging to the north: is that faunal region that
extends from the polar sea southward to near the northern boundary
of the United States and farther south occupies a narrow strip along
the Pacific Coast and the higher parts of the Sierra-Cascade, Rocky
and Alleghany Mountain ranges; divided into Arctic, Hudsonian and
Canadian: see austral and tropical.

Borer: applied to an insect or larva that burrows or makes channels in
woody or other vegetable tissue.

Botryoidal: clustered like a bunch of grapes.

Bouclier: the pronotum, q.v.

Bouton: a button; the terminal lappet-like process at the tip of the
ligula in bees: = spoon.

Brachelytra: with abbreviated wing covers or elytra.

Brachia: the arms: has been applied to raptorial fore-legs.

Brachial: relating to an arm; arm-like.

Brachial cells: Hymenoptera; 1st (Nort.), = costal and sub-costal
(Comst.) 2d (Nort.), = medial (Comst.); 3d (Nort.), = cubital (Comst.);
4th (Nort.), = 2d anal (Comst.).

Brachial veins: of primaries in Hymenoptera, originate at base, run
parallel to inner edge toward anal angle; often connected with the
cubital cellules by means of recurrent venules.

Brachium: the fore tibia.

Brachycerous: Diptera; with short, 3-jointed antennae.

Brachypterous: with short or abbreviated wings.

Brachyostomata: brachycerous Diptera with short proboscis.

Brain: that ganglion of the nervous system which lies in the head
above the oesophagus; formed of the first three primitive ganglia: see
supra-oesophageal.

Branchiae: air tubes or gill-like processes of aquatic larva;.

Branchial: relating to the gills or branchiae.

Branchiate: supplied with gills or bronchia.

Brassy: yellow, with the lustre of metallic brass.

Breast: the under surface of thorax or sternum.

Breast-bone: in Cecidomyid larvae; a horny, more or less elongate
process of the under side behind the mouth opening, supposed to
represent the labium = anchor process.

Breathing pores: see spiracle.

Brevis: short.

Brides: Homoptera; two pieces on the face, one each side of clypeus
and lower part of front.

Bridge: Odonata; a secondary longitudinal vein connecting the radial
sector (Comst.) with Mi + 2, apparently form