Explanation of Terms Used in Entomology - LightNovelsOnl.com
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Riparian: along the river or along sh.o.r.e.
Ripicolous: dwelling on river banks: riparian.
Rorulentum: dusty: =pulverulent: q.v.
Roseate-eous,-ens: rose colored: pale blood red [rose].
Rosette-shaped: in the form of a double rose: cl.u.s.tered round a centre.
Rostellum: a small beak; applied to the mouth parts of sucking lice: also used in Hemiptera, as = rostrum; q.v.
Rostral: pertaining or attached to a rostrum; specifically of Hemiptera.
Rostrate: the head, when it has a long protraction bearing the mouth parts.
Rostriform: produced like a beak or snout.
Rostrum: a snout-like prolongation of the head: in Coleoptera, applied to the rigid extension in the snout beetles: in Hemiptera, is the jointed beak covering the piercing lancets; and this is the better use of the term.
Rotate: wheel-shaped.
Rotator: used for turning; applied to muscles.
Rotatory: an articulation that permits a rotating motion, e.g. a ball and socket joint.
Rotula: a small round segment sometimes present between the joints of antenna; and palpi: = torquillus.
Rotule: the trochantine.
Rotundate: rounded: in the form of a circle or segment of a circle: without angles: said of margins when they pa.s.s gradually into each other and do not form an angle at their point of junction.
Royal jelly: the food supplied to bee larva that develop into queens.
Royal pairs or Royalties: the s.e.xually active males and females of social insects.
Ruben: red, approaching carmine [alizar crimson].
Rubescent: reddish or becoming red.
Rubiginose: a rusty red [dragon's blood, but brighter].
Rubinous: ruby red: like the eye of a house fly.
Rudiment -any: the beginning of any structure or part before it has developed.
Rufescent: reddish.
Rufous: brick-red [chronic yellow + dragon's blood].
Ruga, Rugulae: a wrinkle; small wrinkles.
Rugose -ous: wrinkled: with irregular waved elevated lines.
Rugulose -ous; minutely wrinkled.
Runcinate: notched: cut into several transverse acute segments which point backward.
Ruptor ovi: = egg burster; q.v.
Rutilous: a s.h.i.+ning bronze red.
S
Sabulose: sandy or gritty.
Sac: in Coccidae, the separate cottony envelope secreted by many species.
Saccate: gibbous or inflated toward one end.
Saccule: a little sac or pouch.
Saccus: a lobe of ventral plate of 9th segment in female Lepidoptera.
Saddle: the chitinous plate on the a.n.a.l siphon of Culicid larvae.
Sagitta: arrow-like spots on the wings of Lepidoptera and other insects.
Sagittae: the inner pair of forceps in male genitalia of aculeate Hymenoptera: see stipites.
Sagittal: equivalent to longitudinal.
Sagittal plane: the longitudinal vertical plane which divides an animal into right and left halves.
Sagittate: shaped like an arrow head: elongate triangular.
Salient: projecting; jutting out.
Saliva: the secretion of the salivary glands that moistens and begins the digestion of the food.
Salivary glands: glands that open into the mouth or at the beginning of the alimentary ca.n.a.l, secreting a digestive, irritant or viscid material.
Salivary receptacle: a small cavity above the opening of the salivary duct, between labium and hypopharynx.
