Physiomorphus melanurus (Champion)

Pollock, D. A., Ide, S. & Costa, C., 2000, Review of the Neotropical genus Physiomorphus Pic (Coleoptera: Mycteridae: Lacconotinae), with description of the larvae of three species, Journal of Natural History 34 (12), pp. 2209-2239 : 2224-2227

Physiomorphus melanurus (Champion)

( Figures 15 , 30 , 41-42, 54, 61-66, 68-69)

Laccoderus melanurus Champion 1916a: 144 ; Champion 1916b: 225; Blair 1928: 29; Blackwelder 1945: 493; Elgueta and Arriagada 1989: 36.

HOLOTYPE, ♀, labelled:`Parana / F. Bates 81.19 / ♀ / [round label with red border] Type H.T. / Laccoderus melanurus, Ch. ’, in BMNH . New combination.

Batobiomorphus laticollis Pic 1920: 16 ; Blackwelder 1945: 493. HOLOTYPE, sex unknown, labelled:`Dasytes? nov. sp / [yellow] Type / [red] TYPE / Batobiomorphus laticollis Pic’, in MNHN, Pic Coll. ( PYTHIDAE ). New synonymy.

Batobiomorphus lecticollis Pic 1929: 207 ; Blackwelder 1945: 493. Incorrect subsequent spelling.

Diagnosis, adult

This species may be separated from its congeners by the following diagnostic combination: frons with short, deep furrows along inner margins of eyes; elytral disc yellow, with infuscated apex.

Description, adult

Characters of Physiomorphus , with the following specific features: Body slightly elongate (TL/GEW 2.75-2.93), somewhat ovate. Head moderately wide (GHW/HL 1.00-1.11). Scape relatively elongate, parallel-sided; antennomere 2 short, moniliform, about half length of scape; antennomere 3 sub fi liform; antennomeres 4-10 moniliform; antennomere 11 relatively short, narrowed at about midlength, without cleft; last maxillary palpomere distinctly securiform. Pronotum moderately to distinctly wide (GPW/PL 1.35-1.50), distinctly wider than head (GPW/GHW 1.14-1.28); lateral margins of pronotal disc straight to slightly sinuate to midlength, then evenly and slightly arcuate to anterior margin; discal depressions deep, circular and well de fi ned; punctation deep and coarse, non-umbilicate; setation sparse, uniform. Elytra slightly convex, with suggestions of multiple, longitudinal costae; vestiture sparse, not obscuring coarse, somewhat irregular punctation; apical binding patch conspicuous or inconspicuous dorsally, depending on extent of apical elytral infuscation. Abdomen. Sexual setae and male genitalia not examined. Colour. Head, including antennae and maxillary palpi, black except for frons and labrum, rufous; prothorax uniformly rufotestaceous; elytra rufotestaceous except for apical infuscated area (humeri infuscated in one specimen; legs rufotestaceous except for tarsi, piceous.

Diagnosis, mature larva

Length: 13.1 mm, width: 2.2 mm. Abdomen. Urogomphal plate (figure 15) with scattered setae mainly on margins; constricted at urogomphal bases; a dorsal pair of short setae on median region; anterior angles rounded and strongly produced; posterior margin strongly concave, a pair of rounded pits on median region; urogomphi about 1.5✕ as long as median region of urogomphal plate, bearing some marginal setae, apices slightly upturned and convergent.

Other material examined

BRAZIL. Santa Catarina: Nova Teuto^nia, xii.1940, F. Plaumann, one adult ( FMNH) ; 24.xi, F. Plaumann; xi, F. Plaumann, one adult ( ANIC) ; 27°11'B. 52°23'L, 300-500 m, x.1961, F. Plaumann, one ( MZSP) . Sa~o Paulo: Cotia, Estrada da Caucaia , 18.v.1996, S. Ide, R. C. Moura and M. J. Coelho leg., 12 young larvae (two IBSP, 10 MZSP), 27 mature larvae (one IBSP, 26 MZSP), four prepupae (one IBSP, three MZSP), two pupae ( MZSP) , five adults (two, ♂ three ♀, MZSP) ; Guapiara, Fazenda Intervales, Bocaina , 22-26.iii.1993, Exp. MZUSP leg., six young larvae ( MZSP) , nine mature larvae (two IBSP, seven MZSP), one pupa ( MZSP) , two adults (one, ♂one ♀, MZSP) ; Salesópolis, EstacËa~o Biológica de Boracéia , 20-21.v.1980, Exp. MZUSP leg., one mature larva ( MZSP) ; 07-08.viii.1986, Exp. MZ-DZUSP leg., one mature larva ( MZSP) ; 09-10.vii.1992, Exc. BIZ-739 leg., two mature larvae, one, ♂one ♀ ( MZSP) ; 23.iii.1994, C. Campaner and S. Ide leg., one ♂ ( MZSP) ; 15-17.iv.1996, Exp. MZ-IQUSP leg., three mature larvae, two pupae ( MZSP) .

Other associated material

BRAZIL. Sa~o Paulo: Salesópolis, EstacËa~o Biológica de Boracéia , 09-10.vii.1992, Exc. BIZ-739 leg., one larval exuviae, one prepupal exuviae ( MZSP) ; 23.iii.1994, C. Campaner and S. Ide leg., one prepupal exuviae, one pupal exuviae ( MZSP) ; 15- 17.iv.1996, Exp. MZ-IQUSP leg., one larval exuviae, one prepupal exuviae ( MZSP) .

Figures

FIGS 14-18. Physiomorphus subcostulatus Pollock, n. sp. Young larva: (14) abdominal segment IX (dorsal). Mature larva: (16) abdominal segment IX (dorsal); (18) abdominal segments IX (ventral) and X; (19-20) left anterior leg (lateroventral, laterodorsal). (15) P. melanurus (Champion). Mature larva: abdominal segment IX (dorsal). (17) P. angustus Pollock, n. sp., paranepionotype. Abdominal segment IX (dorsal). Scale: figures 14-18 = 0.5 mm; 19, 20 = 0.15 mm.

FIGS 29-36. Head (adult, dorsal): (29) Physiomorphus atricolor Pic, ♀; (30) P. melanurus (Champion), ♀; (31) P. suturalis Pic, holotype, ♀; (32) P. rufolineatus Pollock, n. sp., holotype,; ♂(33) P. antennatus Pollock, n. sp., holotype,; ♂(34) P. angustus Pollock, n. sp., paratype,; ♂(35) P. mimeticus Pollock, n. sp., holotype, ♀; (36) P. subcostulatus Pollock, n. sp., holotype,. ♂Scale: 1 mm.