Alloraphes lenkoi Franz

Jałoszyński, Paweł, 2013, Revision of the Neotropical genus Alloraphes Franz (Coleoptera: Staphylinidae: Scydmaeninae), Zootaxa 3750 (5), pp. 549-568 : 562-563

Alloraphes lenkoi Franz

( Figs. 4–5 , 33–35 , 50–52 , 64 , 68 )

Alloraphes lenkoi Franz, 1980a: 215 , Fig. 202.

Type material. Paratypes (1 ♂, 14 ♀): Brazil (São Paulo): all with similar locality and identifications labels ( Fig. 64 ): "Barueri, Sao Paulo / Brasij [sic!], lg. K. Lenko" with "No 25" on reverse side [white, printed; reverse handwritten in blue ink]; " Alloraphes / lenkoi m. / PARATYPUS " [yellow, handwritten and printed]; one female with additional red and handwritten " Typus " label ( Fig. 64 ) (NHMW).

Revised diagnosis. Male: frons with shallow but distinct transverse impression between eyes, margins of impression moderately distinct; pronotum with nearly evenly arcuate ante-basal transverse groove without median pit; elytra unmodified; aedeagus in ventral view with distinctly asymmetrical apex of median lobe and short apical projections; parameres with strongly broadened sub-apical region and abruptly narrowing apical region curved dorsally and bearing two rudimentary setae. Female: antennomere XI distinctly longer than wide; antennomeres III–X as long as broad or transverse; frons between antennal insertions with flat subtriangular area sharply delimited from bulging vertex.

Redescription. Body of male ( Fig. 4 ) moderately strongly convex, brown, covered with light brown vestiture; BL 0.99 mm.

Head broadest at large, strongly convex and moderately coarsely faceted eyes, HL 0.19 mm, HW 0.20 mm; tempora rudimentary; vertex weakly convex; posterior part of frons with distinct transverse impression between eyes, margins of impression moderately sharply marked; supra-antennal tubercles feebly marked. Punctures on frons and vertex inconspicuous, fine; setae short, sparse and suberect. Antennae moderately slender, short, AnL 0.38 mm; antennomeres I–II each about twice as long as broad; III about as long as broad; IV–V each slightly longer than broad; VI about as long as broad; VII–IX slightly transverse; X distinctly transverse; XI about 1.6x as long as broad and about 1.5x as long as X.

Pronotum about as long as broad, broadest in anterior third; PL 0.25mm, PW 0.24 mm. Anterior margin and lateral margins in anterior third strongly rounded; sides distinctly but slightly narrowing caudad, posterior constriction absent; posterior margin slightly arcuate; ante-basal transverse groove distinct and nearly evenly arcuate, without median pit and with large but shallow lateral impressions. Punctures on pronotal disc inconspicuous, fine and sparse; setae moderately dense, short and nearly recumbent, sides of pronotum with moderately long and disordered bristles.

Elytra more convex than pronotum, oval, broadest near anterior third; EL 0.55 mm, EW 0.45 mm, EI 1.22; sub-humeral lines indistinct and only as long as about 1/5 EL; elytral apices unmodified. Punctures on elytra indistinct, small, shallow and diffused; setae moderately long, sparse and suberect. Hind wings well developed.

Legs long and slender; all tibiae straight.

Aedeagus ( Figs. 33–34 , 50–51 ) slender and moderately darkly sclerotized; AeL 0.28 mm; in ventral view apical part of median lobe distinctly asymmetrical and with shallowly and broadly emarginated apical margin with additional tiny oblique median notch; apical projections short; parameres in lateral view strongly but gradually broadening up to subapical region with abruptly narrowing apices curved dorsally; each bearing two thin and barely discernible setae.

Female ( Fig. 5 ). Similar to male but with frons flat and distinctly demarcated from convex vertex. BL 0.89– 1.00 mm (mean 0.96 mm); HL 0.16–0.18 mm (mean 0.17 mm), HW 0.18–0.20 mm (mean 0.19 mm), AnL 0.33– 0.35 mm (mean 0.35 mm); PL 0.23–0.25 mm (mean 0.24 mm), PW 0.21–0.25 mm (mean 0.24 mm); EL 0.50–0.58 mm (mean 0.55 mm), EW 0.35–0.45 mm (mean 0.41 mm), EI 1.29–1.43 (mean 1.36).

Spermatheca ( Figs. 35 , 52 ). Globular, diameter 0.05 mm, thin-walled, with long ductus spermathecae; accessory gland not found.

Distribution. Southern Brazil ( Fig. 68 d).

Remarks. The holotype of this species is preserved at the Instituto Biologico São Paulo, Brazil, and my efforts to borrow this specimen have failed. The number of paratypes was not specified by Franz (1980a); all paratypes found in the Franz Collection (NHMW) were studied for the present study (15 exx.; there are also three destroyed specimens in this collection). Franz (1980a) gives further collecting data: in nests of Camponotus rufipes .

Figures

FIGURE 68. Distribution of Alloraphes: a, A. jamaicae Franz; b, A. chiapasensis Franz; c, A. yucatani Franz; d, A. lenkoi Franz; e, A. peruanus Franz; f, A. dentatus sp. n.; g, A. peckorum sp. n.; h, A. myrmecophilus Franz stat. rest.; i, A. bolivarensis Franz; j,? Alloraphes magnus Franz.

FIGURES 1 – 12. Dorsal (1 – 9, 11 – 12) and laterodorsal (10) habitus of Alloraphes Franz. Alloraphes jamaicae Franz, holotype male (1); A. chiapasensis Franz, holotype male (2); A. yucatani Franz, holotype male (3); A. lenkoi Franz, paratype male (4) and paratype female (5); A. peruanus Franz, holotype male (6) and paratype female (7; but see the Remarks section in the redescription); A. dentatus sp. n., holotype male (8); A. peckorum sp. n., holotype male (9 – 10); A. myrmecophilus Franz, stat. rest., paratype male (11);? Alloraphes magnus Franz, holotype female (12).

FIGURES 27 – 43. Aedeagus (27 – 34, 36 – 43) and female genitalia (35) of Alloraphes Franz in ventral (27, 29, 31, 33, 35, 36, 38, 40, 42) and lateral (28, 30, 32, 34, 37, 39, 41, 43) views. Alloraphes jamaicae Franz, holotype (27 – 28); A. chiapasensis Franz, holotype, parameres missing (29 – 30); A. yucatani Franz, holotype (31 – 32); A. lenkoi Franz, paratypes (33 – 35); A. peruanus Franz, holotype (36 – 37); A. dentatus sp. n., holotype (38 – 39); A. peckorum sp. n., holotype (40 – 41); A. myrmecophilus Franz, stat. rest., paratype (42 – 43). Abbreviations: ap, apical projection; bpa, basal pumping apparatus; ov, egg; sp, spermatheca.

FIGURES 44 – 60. Aedeagus (44 – 51, 53 – 60) and female genitalia (52) of Alloraphes Franz in ventral (44, 46, 48, 50, 52, 53, 55, 57, 59) and lateral (45, 47, 49, 51, 54, 56, 58, 60) views. Alloraphes jamaicae Franz, holotype (44 – 45); A. chiapasensis Franz, holotype, paramere detached (46 – 47); A. yucatani Franz, holotype (48 – 49); A. lenkoi Franz, paratypes (50 – 52); A. peruanus Franz, holotype (53 – 54); A. dentatus sp. n., holotype (55 – 56); A. peckorum sp. n., holotype (57 – 58); A. myrmecophilus Franz, stat. rest., paratype (59 – 60). Abbreviations: ap, apical projection; bpa, basal pumping apparatus; ov, egg; sp, spermatheca.

FIGURES 61 – 67. Original sets of labels pinned under historical type specimens. Alloraphes jamaicae Franz, holotype (61); A. chiapasensis Franz, holotype (62); A. yucatani Franz, holotype (63); A. lenkoi Franz, paratype (64); A. peruanus Franz, holotype (65); A. myrmecophilus Franz, stat. rest., paratype (66);? Alloraphes magnus Franz, holotype (67).