Macrolycus expansus Y. Yang, Liu & X. Yang, 2024
publication ID |
https://doi.org/ 10.3897/zookeys.1208.125938 |
publication LSID |
lsid:zoobank.org:pub:48F428DA-4F53-4B37-AA3A-608A19B5F7D4 |
DOI |
https://doi.org/10.5281/zenodo.13151663 |
persistent identifier |
https://treatment.plazi.org/id/9C3D89C2-894A-4C16-BAF9-831BD49827FD |
taxon LSID |
lsid:zoobank.org:act:9C3D89C2-894A-4C16-BAF9-831BD49827FD |
treatment provided by |
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scientific name |
Macrolycus expansus Y. Yang, Liu & X. Yang |
status |
sp. nov. |
Macrolycus expansus Y. Yang, Liu & X. Yang sp. nov.
Figs 3 B View Figure 3 , 4 D – F View Figure 4
Diagnosis.
The species resembles M. guangxiensis Li, Bocak & Pang, 2015 in the general shape of the phallus, but differs in the longer lamella of male antennomere III, 0.9 times as long as the joint itself (Fig. 3 B View Figure 3 ); phallus with subapical part strongly inflated laterally in ventral view (Fig. 4 E View Figure 4 ), apical part strongly expanded ventrally in lateral view (Fig. 4 F View Figure 4 ). In comparison, in M. guangxiensis the lamella of male antennomere III is shorter and 0.7 times as long as the joint itself ( Li et al. 2015: fig. 45), the subapical part of phallus is moderately inflated laterally in ventral view (Fig. 4 B View Figure 4 ), and the apical part is moderately expanded ventrally in lateral view (Fig. 4 C View Figure 4 ).
Etymology.
The specific name is derived from the Latin expansus (to expand), referring to its strongly expanded subapical part of the phallus.
Type material.
Holotype. China: ♂ ( IZAS), Zhejiang, Longquan, Fengyangshan, 29. vii. 2007, leg. L. K Tan.
Description.
Male (Fig. 3 B View Figure 3 ). Length 9.3 mm, width at humeri 1.9 mm.
Body black. Pronotum, elytra and scutellum dark red. Surface covered with decumbent red pubescence (Fig. 3 B View Figure 3 ).
Eyes small, interocular distance about 1.6 times greater than eye diameter. Antennae flabellate, overlapping basal 2 / 3 length of elytra when inclined. Antennomeres III – XI lamellate; lamella of III 0.9 times as long as joint itself and rounded apically; lamellae of IV – XI pointed at apices, lamella of IX longest, 3.9 times longer than joint itself (Fig. 3 B View Figure 3 ).
Pronotum square, 1.2 times wider than long. Anterior margin widely rounded and projecting anteriad, lateral margins feebly sinuate and posterior margin bisinuate; anterior angles confluent with anterior margin, posterior angles sharp and moderately projected. Scutellum trapezoidal, feebly emarginate at apex (Fig. 3 B View Figure 3 ).
Elytra 3.9 times longer than humeral width. Costae I and III weak but visible along its length, IV as strong as II (Fig. 3 B View Figure 3 ).
Phallus slender (Fig. 4 D – F View Figure 4 ), basal part stout and distinctly narrowed towards middle in dorsal and ventral views (Fig. 4 D, E View Figure 4 ), subapical part strongly and asymmetrically inflated laterally, about 2.8 times as wide as basal part, with an oval ventral-cavity, apical part nearly parallel-sided, apex with a deep V-shaped notch, about 0.19 times as wide as subapical part; basal 1 / 3 part stout and curved ventrally in lateral view (Fig. 4 F View Figure 4 ), subapical part moderately inflated ventrally, apical part distinctly expanded ventrally, with a tapered lamella.
Distribution
(Fig. 2 View Figure 2 ). China (Zhejiang).
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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Macrolycini |
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