Dayao emeiensis
| Notice: | This page is derived from the original publication listed below, whose author(s) should always be credited. Further contributors may edit and improve the content of this page and, consequently, need to be credited as well (see page history). Any assessment of factual correctness requires a careful review of the original article as well as of subsequent contributions.
If you are uncertain whether your planned contribution is correct or not, we suggest that you use the associated discussion page instead of editing the page directly. This page should be cited as follows (rationale):
Citation formats to copy and paste
BibTeX: @article{Yin2013ZooKeys275, RIS/ Endnote: TY - JOUR Wikipedia/ Citizendium: <ref name="Yin2013ZooKeys275">{{Citation See also the citation download page at the journal. |
Genus: Dayao
Name
Dayao emeiensis Yin & Li sp. n. – Wikispecies link – ZooBank link – Pensoft Profile
Type material
(1 ♂, 1 ♀). Holotype: ♂, labeled ‘CHINA: Sichuan, E’meishan City / E’mei Shan Mt., pass between / Xixiangchi and Yanwang Slope / 29°33'28"N, 103°20'36"E, 2200 m / (leaf litter, sifted), 2012.vii.23 / C. C. Dai, Z. Peng & Z. W. Yin leg.’ (SNUC). Paratype: ♀, same label data as holotype (SNUC).
Diagnosis
Reddish brown; length 2.96; postgenae narrowed; antennomeres IX–XI enlarged, unmodified in both sexes; pronotum rounded at anterolateral margins; male with large metaventral processes; aedeagus with asymmetric median lobe.
Description
Male (Fig. 1A). Length 2.96–2.97. Head longer than wide, HL 0.73, HW 0.62; eyes each composed of about 25 facets. Antennal clubs as in Fig. 2A. Pronotum (Fig. 2B) about as long as wide, PL 0.64, PW 0.62, rounded at anterolateral margins. Elytra wider than long, EL 0.73, EW 1.06. Long metaventral processes with truncate apices (Fig. 2C). Protrochanters and profemora simple (Fig. 2D); protibiae with small apical projection (Fig. 2E); mesotrochanters (Fig. 2F) slightly protuberant at ventral margin; metatrochanters and metafemora simple (Fig. 2G). Abdomen broad at base and narrowed apically, AL 0.86, AW 1.14. Sternite IX as in Fig. 2H. Aedeagus length 0.46, with symmetric median lobe broad (Figs 2I–K).
Female. Similar to male in general; BL 2.97, HL 0.74, HW 0.59, PL 0.65, PW 0.62, EL 0.68, EW 1.06, AL 0.90, AW 1.19. Eyes each composed of about 15 facets. Antennae simple; metaventral processes absent,.
Comparative notes
Males of the new species can be readily separated from those of the only known congener, Dayao pengzhongi, by the unmodified antennae, the pronotum lacking tufts of long golden setae near the anterior margin, the much larger metaventral processes, and the aedeagus has broader parameres. Dayao pengzhongi has modified antennomeres IX and pronotum, and the aedeagus has relatively much thinner parameres (Yin et al. 2011b[1]: 51, figs 11–13).
Distribution
Southwest China: Sichuan.
Biology
Adults were collected by sifting leaf litter in a mixed forest.
Etymology
The new species is named after the type locality, E’mei Shan Mountain.
Notes
A female specimen (in pcPH) from Nibashan Mt., (Daxiangling Mts., ca. 50 km. W E’meishan) has slightly greater body size, and has each eye composed of about 20 facets. An associated male from Nibashan is needed for species identification.
Original Description
- Yin, Z; Hlaváč, P; Li, L; 2013: Further studies on the Pselaphodes complex of genera from China (Coleoptera, Staphylinidae, Pselaphinae) ZooKeys, 275: 23-65. doi
Other References
- ↑ Yin Z, Li L, Zhao M (2011b) Dayao gen. n. of the subtribe Tyrina (Coleoptera, Staphylinidae, Pselaphinae) from South China. Zookeys 141: 45-52. doi: 10.3897/zookeys.141.1948
Images
|
