Part 140

Stigmata: the spiracles: also applied to the two spots, orbicular and reniform, in the cell of the primaries of certain moths.

Stigmatal line: in caterpillars, = spiracular; q.v.

Stigmatiferous: applied to processes or structures bearing spiracles or stigmata.

Stimuli: the small acute spines on some larva, especially wood-borers

Sting: the modified ovipositor in aculeate Hymenoptera.

Stipes: the foot-stalk of the maxilla; articulated partly to the head, partly to the cardo, and bearing the movable parts: modified into a piercing structure in some Diptera and into a lever for flexing the proboscis in others.

Stipitate: supported on a stalk or pedicle.

Stipites: the outer pair of forceps in male genitalia of aculeate Hymenoptera see sagittae.

S. T. line: sub-terminal line; crosses the primaries of many moths just before the outer margin.

S. T. space: the area between the t.p. line and s. t. line in moths.

Stirps: a stock or stem: a division of classification similar to super-family: not used at present.

Stoma -ata: a breathing pore or pores:= stigma; q.v.

Stomach: that portion of the alimentary canal, immediately following the gizzard and preceding the ileum, into which most of the digestive juices are poured = chylific ventricle.

Stomatodaeum: that invagination of the ectoderm that forms the mouth, pharynx, oesophagus, crop and gizzard.

Stomatogastric: that system of nerves and ganglia, lying along the dorsal and lateral surfaces of gullet and crop.

Stomatotheca: that part of the pupa covering the mouth structures.

Stramineous -eus: straw yellow [pale clay yellow].

Strangulate: constricted, as if by bands or cords.

Stratified: arranged or made up in layers.

Strepsiptera: twisted-wing: an ordinal term proposed for the parasitic Stylopidae, now ranged as a family of Coleoptera = Rhipiptera.

Stria: in Coleoptera, a longitudinal depressed line or furrow, frequently punctured, extending from base to apex of elytra: in Lepidoptera, a fine transverse line: in general, any longitudinal impressed line.

Striate -ed: marked with parallel, fine, impressed lines; or, in Lepidoptera, with numerous fine transverse lines.

Stridulate: to make a creaking noise by rubbing together two ridged or roughened surfaces.

Stridulation: a creaking sound produced by rubbing together two striated or otherwise roughened surfaces: the act of stridulating or the noise produced by it.

Striga: a narrow, transverse line or slender streak, either surface or impressed. {Scanner's note: the proper plural is strigae}

Strigate: having striga: applied to a surface on which the striga are impressed as in the elytra of some beetles, or to an ornamentation composed of fine, short lines. {Scanner's note: sic; the proper plural is strigae}

Strigile -is: maculation that consists of parallel longitudinal lines: a deep sinus near base of first joint of anterior tarsus.

Strigillate -ation: = stridulate -anon; q.v.