Microichthyurus strictipennis Y. Yang, Lin & Liu, 2025
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publication ID |
https://doi.org/10.3897/dez.72.145885 |
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publication LSID |
lsid:zoobank.org:pub:CF9D23E3-A992-4179-8BEE-83F159D358EF |
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DOI |
https://doi.org/10.5281/zenodo.15594241 |
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persistent identifier |
https://treatment.plazi.org/id/1C0BC614-AE7D-511E-8F77-486A7E3D7464 |
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treatment provided by |
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scientific name |
Microichthyurus strictipennis Y. Yang, Lin & Liu |
| status |
sp. nov. |
Microichthyurus strictipennis Y. Yang, Lin & Liu sp. nov.
Figs 15 D View Figure 15 , 16 D View Figure 16 , 17 D View Figure 17 , 19 C View Figure 19 , 20 B View Figure 20 , 21 E – H View Figure 21
Etymology.
The specific name is derived from the Latin strictus (narrow) and penna (feather), referring to its elytra narrowed posteriorly.
Type material.
Holotype. China ‒ Hainan Prov. • ♂; Mingfenggu ; 14-IV-2019; sweeping; Y. D. Chen. leg.; IZAS.
Paratype. China ‒ Hainan Prov. • 1 ♂; same data as holotype; IZAS .
Diagnosis.
The species resembles M. villosipes in the abdominal sternite VII with one bulge covered with long setae in male, but could be easily differentiated from the latter by the following characters: antennae normally filiform in male; mesofemora normally slender and tibiae without any longer hairs in male (Fig. 20 B View Figure 20 ); aedeagus with left dorsal paramere as long as left ventral paramere (Fig. 21 E ‒ H View Figure 21 ). Unlike in M. villosipes , antennae are cylindrically thickened in male ( Lin et al. 2024 a: fig. 9 a); mesofemora moderately swollen, and tibiae densely covered with slightly longer and erected hairs in male ( Lin et al. 2024 a: fig. 8 a); aedeagus with left dorsal paramere long, 1.1 times longer than left ventral paramere ( Lin et al. 2024 a: fig. 6 e, f).
Description.
Body length: 4.3‒4.4 mm (4.3 mm in holotype); body width: 1.0 mm (1.0 mm in holotype).
Male (Fig. 20 B View Figure 20 ). Coloration. Body black, antennomeres I ‒ II brown, elytra light brown at apical 1 / 3 part.
Eyes strongly large, interocular distance about 0.3 times as wide as diameter of an eye. Antennae extending to posterior margin of abdominal tergite II, antennomeres II about 1 / 3 length of I, III ‒ V subequal in length and about twice longer than II, VI slightly shorter than V, VII ‒ XI subequal in length and about 4 / 5 length of VI.
Pronotum 1.1 times wider than long, anterior margin slightly arcuate and posterior margin bisinuate, lateral margins subparallel, anterior angles rounded, and posterior angles nearly rectangular. Elytra 1.1 times longer than wide, 1.8 times longer than pronotum, with lateral margins slightly sinuate, sutures dehiscent from the base, tapered at apices.
Abdominal sternite VII (Fig. 19 C View Figure 19 ) strongly widened posteriorly, bulging in middle of posterior part, coarsely punctate, and covered with long and stout setae. Abdominal tergite VIII (Fig. 15 D View Figure 15 ) 1.5 times longer than wide, with lateral margins slightly arcuate, postero-lateral projections about · 2 / 5 length of the tergite and nearly straight at inner margins. Abdominal sternite VIII (Fig. 16 D View Figure 16 ) bilobed, with lateral portions diverging posteriorly from each other, oval and 1.1 times longer than wide, surface coarsely punctate and covered with a few erected and stout setae in middle part, inner angles widely rounded and outer apical angles sharply projecting, outer apical angles surface covered with some short pubescence, each with a club-like projection in middle of apical margin, surface covered with some erected and stout setae in middle part. Proctiger (Fig. 17 D View Figure 17 ) looking like bilobed, extending over paraproct. Paraproct (Fig. 17 D View Figure 17 ) semicircular and roundly emarginate in middle of posterior margin, around which covered with a few long pubescence, with tergal flange long and about 3.5 times as long as paraproct, basal 1 / 3 part bifurcate, apical 2 / 3 part slender and nearly straight.
Aedeagus (Fig. 21 E ‒ H View Figure 21 ): left ventral paramere rod-like, feebly bisinuate, feebly hooked at apex (Fig. 21 E, H View Figure 21 ); left dorsal paramere as long as left ventral paramere, moderately sinuate, thinnest in middle part, feebly hooked at apex (Fig. 21 E, H View Figure 21 ); right paramere nearly as long as left ventral paramere, strongly twisted and spiral in ventral view, acute at apex (Fig. 21 E View Figure 21 ), compressed laterally and distinctly broadened at apical part, axe-like in lateral view (Fig. 21 F, G View Figure 21 ); median lobe moderately sclerotized and nearly as long as parameres, grooved at basal part, flattened sac-shaped, apex widely rounded (Fig. 21 E, H View Figure 21 ).
Female. Unknown.
Distribution.
China (Hainan).
| IZAS |
Institut Zoologii Akademii Nauk Ukraini - Institute of Zoology of the Academy of Sciences of Ukraine |
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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SuperFamily |
Elateroidea |
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Family |
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SubFamily |
Chauliognathinae |
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Tribe |
Ichthyurini |
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