Explanation of Terms Used in Entomology Part 45

Lateral longitudinal area: of Hymenoptera, extends between the median and pleural carinae of metanotum.

Lateral ridge: in slug caterpillars, extends longitudinally along the lateral series of abdominal tubercles.

Lateral scale: one of the lateral processes of the ovipositor in Cynipidae, lying within and below the a.n.a.l scale.

Lateral s.p.a.ce: in slug caterpillars is the area on each side of the body between the subdorsal and lateral ridges.

Lateral sutures: of the thorax in Odonata, are situated on the sides of thorax, the first separating the metepisternum from the mesepimeron; the second separating the metepisternum from the metepimeron; the first more or less obsolete in the Anisoptera.

Lateral tubercle: lateral on thoracic and abdominal segments of caterpillars: it is 3 of the abdomen, 2a of thorax: constant (Dyar).

Latericeous: = lateritius: q.v.

Lateritius: yellowish-red; yellowish brick color [pale clay yellow with a little red].

Laterodorsal: the point of junction of dorsum and pleurum.

Lateropharyngeal: applied to the 4th pair of salivary glands in bees; situated on each side of the pharynx.

Laterostigmatal: situated on the side, immediately above the spiracle.

Lateroventral: the point of junction of sternum and pleurum.

Latero-ventral metathoracic carina: in Odonata; forms the dividing line between the metepimera and the metasternum.

Latescent: becoming obscure or hidden.

Latreille's segment: the first abdominal segment of those Hymenoptera in which it is fused with the thorax:= median segment, propodeon, propodeum.

Latticed: = cancellate; q.v.

Latus: the side: broad.

Latuscula: the facets of the compound eye.

Leathery: having the appearance or texture of leather.

Lectotype: a co-type chosen, subsequently to the original description, to take the place which in other cases a holotype occupies.

Leg -s: the jointed appendages attached to the thoracic segments, used in walking: the organs of locomotion other than wings: unjointed organs of locomotion are pro-legs or false legs; q.v.

Legion: a group of genera, subequal to a tribe.

Legnum: the margin of a squama.

Lemniscate: ribbon-like: in the form of an 8.

Lenticular: round, doubly convex; like a lens or lentil.

Lepidoptera: scale-winged: an order of insects with spirally coiled haustellate mouth structures; head free; thorax agglutinate; transformations complete four scale-covered wings.

Lepidopteric acid: a green pigment obtained from the wing scales of Lepidoptera; a derivative of uric acid: see Lepidotic acid.

Lepidopteron: a b.u.t.terfly or moth: one of the Lepidoptera.

Lepidotic: set with minute scales.

Lepidotic acid: a yellow pigment obtained from certain b.u.t.terfly scales a derivative of uric acid: see Lepidopteric acid.

Lepis: a scale.

Leprous: with loose, irregular scales.

Leptiform: = compodeiform; q.v.

Leptos: small, fine.

Lethargic: torpid or inactive.

Leucine: a white crystalline compound, the product of animal decomposition, found in the malpighian tubes: as a color, cheesy white.

Leucocytes: pale, unicellular bodies, numerous in the insect blood.

Levator: a muscle that raises an organ or a part.

Levigate -us: with a smooth, somewhat s.h.i.+ny surface.

Liber: free.

Ligament: a band or sheet of tough, fibrous tissue between two parts or segments.

Ligneous -eus: wood brown [Vand.y.k.e brown].

Lignivorous: feeding upon wood or woody tissues.

Ligula: the central sclerite of the labium, borne upon the mentum, usually single, sometimes paired: often used as synonymous with "glossa" and "tongue": corresponds to the united laciniae of right and left maxillae: see also elytral ligula.

Ligulate: strap-shaped; linear, much longer than broad.

Lilacinous: lilac-colored [lilac].

Limaciform: having the form of a Limax or slug; said of larvae.

Limb: the circ.u.mference: the area surrounding the disc.

Limbate: when a disc is surrounded by a margin of different color.

Limbus: the area along the outer and posterior margin of wing beyond the closed cells; h.o.m.optera, Cicada.