Psapharochrus

Casari, Sônia A., 2016, Morphology of Immatures of Acanthoderini (Cerambycidae, Lamiinae), Zootaxa 4139 (1) : -

Immatures of Psapharochrus

Based on three studied species ( P. cylindricus , P. j a s pi de u s, P. vetustus ) and on the descriptions of three others ( P. juno , P. lateralis , P. melanosticticus ), the larvae of Psapharochrus are recognized by having head oblong, moderately flattened, widest anteriorly, with sides slightly constricted before middle except P. melanosticticus and P. vetustus ; frontal sutures distinct only behind antennal foramina; three pairs of epistomal setae, except P. melanosticticus , with two pairs; lateral pair of epistomal setae very close in studied species; antennae with two antennomeres: distal, with a conical sensorial appendix and 7 setae; labrum slightly testaceus, transversely oval with fringe of bristly setae; gular suture distinct and with one pair of setae each side; occipital foramen entire, with anterior margin slightly rounded except P. j un o, 6-angulated; clypeus trapezoidal, 3.0-3.3X wider than long; labrum oval, 1.1‒1.9X wider than long; pronotum with anterior half or third covered with moderately long and dense erect setae, without median line; posterior half microrugose or microtuberculate; postnotal fold indistinct; eusternum tuberculate; mesonotum smooth; meso- and metasternum and metanotum with one transverse furrow with one row of moniliform tubercles each side; moniliform tubercles microspiculate only in P. juno ; segments VII‒VIII broader than previous, except P. melanosticticus ; segments I‒VII with dorsal elliptic ampullae, decreasing in width from first to last; each dorsal ampulla bearing two transverse furrows and three rows of moniliform tubercles; ventral ampullae with one single transverse furrow and one row of moniliform tubercles each side; epipleural lobes with two sclerotized pits; epipleura strongly protuberant on segments VII‒IX; anus trilobate and sparsely setose.

The pupae have head partially visible dorsally, with eight pairs of spines; one pair of spines near base of each antennal tubercle; clypeal area with four short spines, each with basal setae; antennae not reaching abdomen or at maximum reaching ventrite II, where they are strongly curved and directed anteriorly; labrum subtriangular, almost glabrous, with single row of five short spines with basal seta, glabrous in P. melanosticticus ; each mandible with two setae near middle of outer face, with single seta in P. j un o. Prothorax with one pair of long, acute, lateral tubercles with or without spines at apex; disc with one pair of paramedian hemispheric tubercles; numerous short spines at anterior margin, apically and basally lateral tubercles and behind dorsal tubercles; meso- and metanotum with two oblique rows of spines, each with basal seta; elytra and wings glabrous, extending as far as ventrite II. Abdomen: tergites with transverse bands (interrupted medially) of short spines, directed posteriorly, each with basal seta: segment I with single band and II‒VII with two bands; VII bearing, except transverse bands, numerous short spines; segment VIII very short with 4‒5 pairs of spines each side; IX with one pair dorsal and 3-4 spines each distal projection; segment X ventral and bilobed. All femora near apex with a transverse row of spines, each with basal long seta; mid and hind femora each with one long blunt tubercular process near base. Functional spiracles on segments I‒VI; VII closed.