Bolitogyrus profundus Cai et al., 2015

Brunke, Adam J., 2017, A revision of the Oriental species of Bolitogyrus Chevrolat (Coleoptera, Staphylinidae, Staphylininae), ZooKeys 664, pp. 1-97 : 40-42

Bolitogyrus profundus Cai et al., 2015 Figs 14 J–L, 21B (map)

Bolitogyrus profundus Cai et al., 2015: 469.

Type locality.

Menglun Nature Reserve, Xishuangbanna, Mengla County, Yunnan, China.

Type material.

The type specimen of this recently described, and well-illustrated species was not examined ( Cai et al. 2015) but the illustrations in the description ( Cai et al. 2015) and additional photos provided by the senior author of that paper were studied.

Other material.

LAOS: Louangphabang: Thong Khan [=Khang], 750 m, 19.578 101.966, 11-21.V.2002, J. Chalupek, 1 ♂, AJB0000538 (cShi); same except V. Kuban, 1 ♀, AJB0000586 (NHMB). Phongsaly: Phongsali env. [environs of], 1300-1500 m, 1-15.V.2004, Lao Collector, 1 ♂, AJB0000537 (cShi).

THAILAND: Chiang Mai: Doi Suthep, B. Degerbøl, 4.X.1958, 1 ♂, AJB0000422 (ZMUC); Phetchabun, Thung Salaeng Luang NP, Gang Wang Nam Yen, 16.610 100.890, 753 m, Malaise trap, T2083, 24-31.V.2007, Pongpitak Pranee & Sathit leg., 1 ♂, 1134 [identifier] (NHMO).

Diagnosis.

This species may be recognized by the following: head entirely dark; pronotum widest in posterior third; elytra partly dark, discal markings of elytra extending onto epipleuron, not forming v-shape, medial and lateral markings of different sizes and never entirely fused (Fig. 5G); apical portion of median lobe in lateral view not projecting ventrad or dorsad, not flattened, apex angulate and not hooked (Fig. 14K); apical portion in parameral view narrow and acuminate (Fig. 14J).

Redescription.

Measurements ♂ (n = 3): HW/HL 1.39-1.41; PW/PL 1.24-1.29; EW/ EL 1.25-1.26; ESut/PL 0.71-0.74; PW/HW 1.02-1.04; forebody length 4.1-4.3 mm.

Measurements ♀ (n = 1): HW/HL 1.39; PW/PL 1.24; EW/ EL 1.24; ESut/PL 0.73; PW/HW 1.02; forebody length 4.4 mm.

Extremely similar to B. pictus (including color dimorphism) and differing only in the following: median lobe in lateral view with apical portion more or less straight, apex angulate, basal teeth appearing removed from ventral face (Fig. 14K); median lobe in parameral view with apical portion distinctly longer and acuminate, basal teeth appearing laterally (Fig. 14J); paramere slightly shorter than median lobe, with apical portion more strongly acuminate, apex much narrower (Fig. 14L); female tergite X with apex not projecting at middle, apex widely acute and not truncate.

Distribution.

Figure 21B. Bolitogyrus profundus is known from southern Yunnan, China, northern Laos, and central and northern Thailand.

Bionomics.

Bolitogyrus profundus has been collected in May and October at elevations ranging from 750-1500 m.

Comments.

The acute apex of the median lobe was observed to be longer in specimens south of the type locality in Yunnan, China. This is attributed to intraspecific variation. Bolitogyrus profundus is similar to allopatric B. concavus (Meghalaya, India) but can be distinguished by the straight apex of the median lobe and the distinct rows of peg setae on the paramere.