Batriscenellus loebli Jiang and Yin, 2017

Yin, Zi-Wei, 2017, Eight new species and two new records of Batriscenellus Jeannel (Coleoptera: Staphylinidae: Pselaphinae) from China and India, Zootaxa 4318 (3), pp. 561-575 : 568-570

publication ID

https://doi.org/ 10.11646/zootaxa.4318.3.8

publication LSID

lsid:zoobank.org:pub:62B32B63-Cc1F-449A-83B9-936Ebef85C08

DOI

https://doi.org/10.5281/zenodo.6004259

persistent identifier

https://treatment.plazi.org/id/756087A0-885E-806F-B6E9-FB54E3F84C81

treatment provided by

Plazi

scientific name

Batriscenellus loebli Jiang and Yin
status

sp. nov.

Batriscenellus loebli Jiang and Yin View in CoL , new species

( Fig. 6 View FIGURE 6 )

Type material (5 exs). Holotype: ♂: ‘ INDIA: Meghalaya, Ri Bhoi dist., near Nongpoh , 600 m, 12.X.2004, 25°55'31"N, 91°52'25"E, #1 / Leg. G. Cuccodoro, C. Carlton, R. Leschen & D. Eme.’ ( MHNG) GoogleMaps . Paratypes: 2 ♂♂, same label data as the holotype (SNUC, MHNG); 1 ♂: ‘ INDIA: Meghalaya, Ri Bho dist., Umran , 700 m, 22.X.2004, 25°46'28"N, 91°52'26"E, #10 / Leg. G. Cuccodoro, C. Carlton, R. Leschen & D. Eme.’ ( SNUC) GoogleMaps ; 1 ♂: ‘ INDIA: Meghalaya, Khasi Hills, 700 m, Nongpoh , 5–XI–78, Besuchet, Löbl.’ ( MHNG) .

Diagnosis of male. Dorsal surface of head, pronotum and tergite IV coarsely punctate; antennomeres subquadrate; elytra with deep sutural and discal striae; all legs simple; tergites V–VII modified, V with broad median impression, two lateral projections with setose spices, and a pair of bunch of long setae, VI concave medially, VII with large triangular median projection, and two blunt lateral projections; aedeagus with relatively short ventral lobe, and an elongate, strongly curved dorsal lobe.

Description. Male ( Fig. 6 View FIGURE 6 A). Body reddish-brown, length 1.97–1.98 mm. Head subrectangular, wider than long, HL 0.35–0.36 mm, HW 0.46–0.47 mm, dorsal surface coarsely punctate, with large and round punctures ( Fig. 6 View FIGURE 6 B); vertex lacking median ridge, U-shaped sulcus only indicated at anterior part; antennomeres subquadrate, clubs loosely formed by apical three antennomeres; each eye composed of about 30 facets. Pronotum about as long as wide, PL 0.44–0.45 mm, PW 0.44–0.46 mm, coarsely punctate ( Fig. 6 View FIGURE 6 B). Elytra wider than long, EL 0.63–0.66 mm, EW 0.75–0.76 mm, narrowed at base, deep discal striae extending to near elytral apex, apically curved laterally; sutural striae complete. All legs simple, lacking modification. Abdomen wider than long, AL 0.52–0.56 mm, AW 0.75–0.76 mm, tergite IV coarsely punctate and with long setae; tergite V ( Fig. 6 View FIGURE 6 C–D) with a broad median impression, two lateral projections with setose spices, and pair of bunched long setae, tergite VI ( Fig. 6 View FIGURE 6 C– D) strongly concave at middle, tergite VII ( Fig. 6 View FIGURE 6 C–D) with large triangular median projection, and with two blunt lateral projections. Aedeagus ( Fig. 6 View FIGURE 6 E–F) strongly asymmetric, length 0.36 mm, ventral lobe elongate, broad at base and narrowing toward apex, curved leftwards in ventral view, dorsal lobe strongly transverse, strongly curved and split at apex.

Female. Unknown.

Comparative Notes. The new species is placed as a member of the B. besucheti species group as defined above (see ‘Comparative Notes’ under B. besucheti ). Among this group, B. loebli is most similar to B. cuccodoroi by sharing two bunches of elongate setae at the lateral margins of male tergite V. These two species can be best separated by the male tergite VII being less strongly modified in B. loebli , and the aedeagal structures are quite different. Batriscenellus loebli can be separated from B. besucheti by the simple male protarsomeres I, and from B. carltoni by the elytral discal striae being curved laterally on the posterior portion, and the much more strongly developed abdominal modifications of the male.

Distribution. Northeastern India: Meghalaya.

Etymology. The new specific name is dedicated to Ivan Löbl, co-collector of the holotype.

MHNG

Museum d'Histoire Naturelle

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