Pselaphodes parapectinatus, Yin & Li, 2021

Yin, Zi-Wei & Li, Ning, 2021, Eight new species and additional records of the Pselaphodes complex from Laos and Vietnam, with a key to known species (Coleoptera: Staphylinidae: Pselaphinae), Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) 61 (1), pp. 35-53 : 50

publication ID

https://doi.org/ 10.37520/aemnp.2021.002

publication LSID

lsid:zoobank.org:pub:0AEECD1F-1C71-4636-89A7-DA31D2DB73D6

DOI

https://doi.org/10.5281/zenodo.5037468

persistent identifier

https://treatment.plazi.org/id/03D13B6D-E80F-5133-7F56-FBD03BD8FB52

treatment provided by

Carolina

scientific name

Pselaphodes parapectinatus
status

sp. nov.

Pselaphodes parapectinatus View in CoL sp. nov.

( Figs 10B View Fig , 12 View Fig )

Type material (11 specimens). HOLOTYPE: VIETNAM: LÀO CAI: ♂, ‘VIETNAM N, 22′20′N, 103′50′E, SAPA (Lao Cai) 25.5- 10.6.1991, leg. E. Jendek’ ( MHNG) . PARATYPES: VIETNAM: LÀO CAI : 9 ♂♂, same label data as for holotype ( MHNG, SNUC); 1 ♂, ‘C N-Vietnam], 23.v.1998 / Mt. Phang Si Pang (1,840, beating), Lao Cai Prov .’ ( MHNG) .

Diagnosis. Male length 3.23–3.28 mm. Antennomeres 9–11 greatly elongate and forming distinct club, antennomere 9 with large disc-like process near apex. Horn-like metaventral processes short and apically blunt. Profemur with ventral spine before middle expansion; protibia strongly curved, with small middle spine and large apical projection. Median lobe of aedeagus almost symmetric dorso-ventrally; parameres long and broad; endophallus composed of broad, plate-like structure and elongate sclerite. Female unknow.

Description. Male ( Fig. 10B View Fig ). Body length 3.23–3.28 mm. Head slightly longer than wide, HL 0.65–0.70 mm, HW 0.63 mm; eyes prominent, each composed of about 42 facets. Antennomeres 2–8 of similar form, each slightly longer than wide, antennomeres 9–11 ( Fig. 12A View Fig ) each much longer than wide, antennomere 9 with distinct disclike process near apex, antennomere 10 subcylindrical, slightly broadened from base toward apex, antennomere 11 sub-oval, narrowing apically. Pronotum ( Fig. 12B View Fig ) approximately as long as wide, PL 0.63–0.65 mm, PW 0.60–0.63 mm, sides roundly narrowing apically at apical 2/5. Elytra slightly longer than wide, EL 0.93–0.95 mm, EW 0.90 mm. Horn-like metaventral processes ( Fig. 12C View Fig ) in lateral view roundly triangular, short and blunt at apices. Profemur ( Fig. 12D View Fig ) with triangular spine at basal 1/3, angularly expanded at middle; protibia ( Fig. 12E View Fig ) strongly curved in apical half, with small spine near middle and large apical projection; mesotrochanter, mesofemur ( Fig. 12F View Fig ), metatrochanter and metafemur ( Fig. 12G View Fig ) simple. Abdomen broad at base and narrowed posteriorly, AL 0.90–0.95 mm, AW 1.08–1.15 mm; tergite 1 (IV) longest, more than twice as long as tergite V; sternite 7 (IX) ( Fig. 12H View Fig ) hemi-membranous, suboval.Aedeagus ( Figs 12I –E View Fig ) 0.76 mm long; median lobe nearly symmetric dorso-ventrally; parameres each elongate and broad, with enlarged, round apices; endophallus comprising one plate-like sclerite with many small spines at apex, and one elongate, curved sclerite.

Female. Unknown.

Comparative notes. The new species is most similar to P. pectinatus Yin, Li & Zhao, 2011 from Hainan, southern China, by sharing similar position and structure of the leg modifications, and short horn-like metaventral processes of the male. These two species differ in the presence of a large disc-like process on antennomere 9 (process lacking in P. pectinatus ), a much shorter and differently shaped apical projection of protibia, each paramere of aedeagus lacking the apical setae and roundly broadened at the apex (each paramere with many thick apical and preapical setae, and rounded but not broadened at the apex in P. pectinatus ), and different structure of the endophallic sclerites of P. parapectinatus sp. nov.

Etymology. The new specific name reflects the morphological similarity between the new species and P. pectinatus . The name consists of the Greek prefix pará - (beside; next to, near, from) and the Latin adjective pectinatus (- a, - um; meaning combed).

Distribution. Vietnam: Lào Cai.

MHNG

Switzerland, Geneva, Museum d'Histoire Naturelle

SNUC

China, Shanghai, Shanghai Normal University, Department of Biology, insect Collection

MHNG

Museum d'Histoire Naturelle

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Staphylinidae

Genus

Pselaphodes

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