Bolitogyrus sallei (Kraatz, 1858)

Brunke, Adam J. & Solodovnikov, Alexey, 2014, A revision of the Neotropical species of Bolitogyrus Chevrolat, a geographically disjunct lineage of Staphylinini (Coleoptera, Staphylinidae), ZooKeys 423, pp. 1-113 : 28-29

Taxon classification Animalia Coleoptera Staphylinidae

Bolitogyrus sallei (Kraatz, 1858) stat. r. Figs 11B, 16I, 23D, 25L, 29D (map)

Cyrtothorax sallei Kraatz, 1858: 367

Cyrtothorax sallei : Fauvel 1878: 164, as synonym of buphthalmus Erichson

Cyrtothorax sallei : Sharp 1884: 340, as synonym of buphthalmus Erichson

Type locality.

“Mexico”.

Type material.

Cyrtothorax sallei Kraatz, 1858 (ex. parte). LECTOTYPE (♂, here designated, DEI): Mexico [blue label, script]/ Coll. Kraatz [white label, printed]/ SYNTYPUS [red label, printed] / LECTOTYPE ♂, Cyrtothorax sallei Kraatz, 1858, des. A. Brunke 2013 [red label, printed].

The syntype series of Cyrtothorax sallei in DEI contains 5 specimens corresponding to three different species. Specimens #3-5 (2 ♂, 1 ♀) are conspecific with Bolitogyrus buphthalmus and specimens #1-2 (both ♂) are each a different species. Specimen #1 belongs to a species rather similar to Bolitogyrus buphthalmus and known only from Mexico. This specimen was designated as the lectotype of Bolitogyrus sallei to associate this species concept with an available name. Specimen #2 belongs to 'morphotype 3' of Bolitogyrus salvini (see comments under that species). The variation referred to by Kraatz (1858) as 'var. nigricoxis’ corresponds to specimen #5, a female of Bolitogyrus buphthalmus with characteristically dark coxae.

Other material.

‘März’, 1 ♂ (NMW). MEXICO: " Cyrtothorax buphthalmus D.S.", [two ♂ specimens mounted on one card], "Sharp Coll. 1905.-313", Flohr, 2 ♂ (BMNH); Mexico, ‘6.J’ [on first specimen], J. Flohr, 2 ♂ (ZMHB). Hidalgo: Chapulhuacán, La Piedra, carretera a Picafiores, Selva Mediana Caducifolia [=mid-elevation deciduous forest], 841m, 21°9'46"N, 98°57'18.7"W, Tronco [=log], 8.IV.2006, J. Márquez y J. Asiain, 2 ♂ (UAEH); Chapulhuacán, Tamaulipas, bosque mesófilo de Montaña [=mountain cloud forest], 1115m, 21°9'56"N, 98°55'50.2"W, trampa interception de vuelo [=FIT], 14 to 17.VII.2007, P. Martinez, J. Asiain, I. Rodriguez & J. Márquez, 1 ♂, 1 ♀ (UAEH). Veracruz, ‘Cordova’ (= Córdoba), Höge, "Sharp Coll. 1905.-313", 1 ♂ (BMNH).

Diagnosis.

Head without central protuberance; antenna and legs distinctly bicolored (Fig. 5A); genital and abdominal segment VIII not distinctly paler than previous segments; abdominal sternites with fine transverse microsculpture, interspaces about as wide as lines (Fig. 13D); female procoxa mostly pale (Fig. 11B); median lobe recurved dorsad at apex (Fig. 15F); paramere with divergent arms (Fig. 16I); paramere with fields of peg setae varying from wide and circular to narrow and angulate, at base of arms (c.f. Fig. 15C, D, G, H); female tergite X with raised disc not converging strongly toward apex, strongly pigmented area strongly incised at apicolateral margin (Fig. 25L); female secondary gonocoxite not distinctly swollen at base.

Redescription.

Measurements ♂ (n=5): HW/HL 1.58-1.80; PW/PL 1.27-1.71; EW/EL 1.24-1.43; ESut/PL 0.72-0.79; PW/HW 1.06-1.14; forebody length 3.8-4.4 mm.

Measurements ♀ (n=1): HW/HL 1.46; PW/PL 1.33; EW/EL 1.28; ESut/PL 0.75; PW/HW 1.05; forebody length 4.6 mm.

Similar to Bolitogyrus buphthalmus and differing only in the following: forebody distinctly shorter than in most specimens of Bolitogyrus buphthalmus ; forebody (head and elytra) with bronze metallic reflections or not, never with green, purple or blue reflections; forecoxa in females yellow with some basal and lateral darkening; median lobe in lateral view recurved dorsad (c.f. Fig. 15F); paramere with fields of peg setae varying from wide and circular to narrow and angulate, at base of arms (c.f. Fig. 15C, D, G, H); male sternite IX with apical emargination slightly deeper and with asymmetrical base ending in a small knob (Fig. 23D); female tergite X with raised disc more elongate and only weakly converging toward apex (Fig. 25L).

Distribution.

Figure 29D. Bolitogyrus sallei is known only from the Mexican states of Hidalgo and Veracruz.

Bionomics.

Bolitogyrus sallei has been collected from cloud to deciduous forest, in June and July, at elevations ranging from 841-1115 m. One specimen was collected from a rotting log and another from a flight intercept trap.

Comments.

Bolitogyrus sallei is most similar to and sympatric with Bolitogyrus buphthalmus from which it differs in the smaller size of the forebody (overlapping but rarely), the partially pale forecoxa in females and the morphology of the aedeagus. It is rare for very similar and thus presumably closely related species of Bolitogyrus to occur sympatrically but future collecting will hopefully establish whether Bolitogyrus sallei and Bolitogyrus buphthalmus share the same habitat or microhabitat. Kraatz (1858) remarked that the black specimen in his type series of Bolitogyrus sallei could in fact represent a distinct species. Study of the male genitalia of this and additional, non-type specimens demonstrated this to be correct. By designation of this syntype as a lectotype, the name Bolitogyrus sallei was used for that species. Kraatz (1858) also observed differences in punctation of the abdominal tergites of specimens he examined but this variation did not correspond to the different species in his syntype series distinguished here.