Scrobes: grooves formed for the reception or concealment of an appendage specifically, in Rhynchophora, grooves at the sides of the rostrum to receive the scape of antenna 2: also applied to grooves on the sides of mandibles: in Hymenoptera, the usually circular impressions upon the frons, in which the scapes revolve: in Orthoptera, the pits in which the antenna; are situate. Scrobiculated: having the surface covered with deep round pits. Scrotal membrane: the envelope covering the testes in some insects. Scrotiform: purse-shaped. Scrotum: = scrotal membrane; q, v. Sculpture: the markings or pattern of impression or elevation on an elytra or other body surface. Sculptured: a surface, when marked with elevations or depressions or both, arranged in some definite manner. Scutate-iform: shield or buckler-shaped. Scutcheon: = scutellum; q.v.: also used by some authors (Walker) for the pronotum in Homoptera. Scutel: = scutellum: q.v. Scutellar angle: of elytra is next to the scutel when wing is expanded. Scutellar bridge: in Diptera, a small ridge on either side of the Scutellum, connecting it with the mesonotum. Scutellar space: in Mantids, an area between antennae and clypeus. Scutellate: dish- or platter-shaped. Scutellum: the third dorsal sclerite of the meso- and meta-thorax: in Coleoptera, the triangular piece between the elytra at base and universally referred to as the scutellum: in Heteroptera, a similar sclerite between base of hemelytra: in Diptera, a sub-hemispherical. body posteriorly cut off by an impressed line from the dorsum of the meso-thorax. Scutes: the chitinous shields or plates on the segments of larvae. Scutiform: = scutate; q.v. Scutum: the second dorsal sclerite of the meso- and meta-thorax. Seal-brown: a brilliant deep red-brown: almost like, but darker than castaneous [between dragon's blood and Indian red]. Sebaceous: fatty or oily; applied to glands secreting such substances. Sebific: oily; sebaceous; somewhat sticky. Sebific duct: carries the excretions of the colleterial gland to the bursa copulatrix. Second antennal segment: the third or tritocerebral segment of head. Secondaries: the hind wings; always attached to the meta-thorax. Secondary sexual characters: features possessed by one sex but not the other, other than the differences of the reproductive organs themselves; e.g. color, size, shape, etc. Second clypeus: see anteclypeus. Second costal cell: in Hymenoptera (Pack.); is the stigma. Second inner apical: in Hymenoptera (Nort.), = media 3 (Comst), to the junction of medial cross-vein; also called sub-marginal nervure in part. Second lateral thoracic suture: in Odonata, extends front base of secondaries to the rear of the third coxa. Second longitudinal vein: in Diptera:= radius 2 + 3 (Comst). Second maxilla: the labium: q.v. Second maxillary segment: the seventh or labial segment of head. Second median area: see median area; areola.