Liotesba fengyangshana, Zhou & Zhou, 2013
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publication ID |
https://doi.org/ 10.1080/00222933.2013.791936 |
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DOI |
https://doi.org/10.5281/zenodo.6505098 |
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persistent identifier |
https://treatment.plazi.org/id/A10D4838-C351-3754-2611-FBAC1A8FFADF |
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treatment provided by |
Felipe |
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scientific name |
Liotesba fengyangshana |
| status |
sp. nov. |
Liotesba fengyangshana View in CoL sp. nov.
( Figure 1A–K View Figure 1 )
Type material. Holotype: male, CHINA: Zhejiang: Lanao co.: Fengyang Shan , 1400 m, 31 July 2007, Yang Zhuo collected ( IZ-CAS).
Description
Measurement. BL = 8.74 mm, FL = 4.49 mm, HL = 1.25 mm, HW = 1.13 mm, PL = 1.43 mm, PW = 0.93 mm, EL = 1.58 mm, EW = 1.25 mm.
Body nearly cylindrical, medium-sized. Head, pronotum, mesoscutellum and abdomen black. Elytra reddish brown. Legs dark brown except tarsi lighter in colour. Antennae entirely dark brown, basal three antennomeres darker and smoother than the remaining antennomeres, apical half of last antennomere light brown. Maxillary and labial palpi brown.
Head ( Figure 1A View Figure 1 ). Subquadrate (HL to HW ratio 1.1), tempora slightly widened posteriorly, posterior angles rounded. Dorsal integument extensively bearing micropunctures; frontal region and disc smooth, without punctures; posterior half of head and temporal region with large punctures, distance between punctures nearly a puncture’s diameter; deflexed portion of tempora with three rows of small punctures. Each side of cranium with anterolateral puncture near antennal insertion, midlateral puncture approximately a distance of two punctures’ diameter from dorsal margin of eye, temporal puncture at the posterior one-fifth of head, and occipital puncture at the lateral one-fifth of head. Frontal furrows absent, anteocular furrows relatively long and observable. Eyes large, nearly three-quarters the length of tempora (eye: tempora = 0.45: 0.60 mm), distinctly protruding laterad; one large and one small puncture next to posterior half of dorsal margin of eye ( Figure 1A View Figure 1 ). Epistoma narrow, narrowed anteriorly. Distance between antennal insertions 0.45 mm, subequal to distance from antenna to eye (0.48 mm). Ventral side of head shiny, with scattered, larger punctures (than those on dorsal side), distance between punctures shorter than a puncture diameter. Gular plate narrow, subtriangular; gular sutures not fused.
Antennae. Scape stout, thickened apically, much longer than three subsequent antennomeres combined, 0.53 mm; antennomere II slightly elongate, 0.13 mm; III distinctly elongate, observably longer than II, 0.18 mm; IV and V subequal in length, 0.09 mm; last antennomere medium in length, 0.23 mm, subequal to the length of two preceding antennomeres combined.
Mouthparts ( Figure 1B–E View Figure 1 ). Labrum transverse, with a pair of median teeth, and a lateral tooth at each side ( Figure 1B View Figure 1 ), which distinctly protruding. Mandibles falciform, right one with a broad tooth on inner edge ( Figure 1C View Figure 1 ). Maxillary palpus elongate, second segment longest, last segment slender, fusiform, longer than the penultimate ( Figure 1D View Figure 1 ). Labial palpus slender, last segment longest, slightly dilated subapically ( Figure 1E View Figure 1 ).
Neck ( Figure 1A View Figure 1 ). Rather wide (0.53 mm), approximately half the width of head.
Pronotum ( Figure 1A View Figure 1 ). Subrectangular, distinctly elongate (PL to PW ratio 1.4), longer than head, but slightly narrower. Widened anteriad, lateral margins straight, anterior angles well defined, slightly deflexed downwards, posterior angles broadly rounded. Dorsal surface extensively covered with micropunctures, each side with two large punctures on each anterolateral corner, one large puncture on each posterolateral corner. Additional irregular punctures distributing near anterior and lateral margins of pronotum.
Mesoscutellum. Opaque, rugose, with several small, irregularly scattered punctures.
Elytra ( Figure 1A View Figure 1 ). Subrectangular, distinctly elongate (EL to EW ratio 1.3), slightly longer, wider than pronotum. Humeri well developed, lateral margins divergent posteriorly, hind margin rounded. Integument shiny, flattened, without microsculpture, each side with two or three rows of small, sparsely-scattered punctures along median suture, a row along midwidth, and also with three or four rows of denser punctures on deflexed portion of each elytron.
Legs. First four segments of protarsi slightly dilated, heart-shaped, last segment as long as the II–IV combined. Last segment of mesotarsi and metatarsi slender, shorter than the II–IV of mesotarsi and metatarsi combined, respectively.
Abdomen. Cylindrical, broadest at segment VI. Tergites III–VII shiny, each segment with surface entirely covered with observable transverse microstriae, with sparse, medium-sized punctures, interspaces between punctures approximately the diameter of two to three punctures, and punctures being denser, smaller on its anterolateral portion. Each tergite with a punctate basal impression near anterior margin, which also bears transverse microstriae. All abdominal sternites shiny, with microstriae and punctures as those on tergites.
Male ( Figure 1F–K View Figure 1 ). Tergite VIII entirely covered with punctures, posterior margin very slightly rounded medially; sternite VIII with punctures on posterior half, posterior margins very slightly emarginate medially ( Figure 1F, G View Figure 1 ). Tergite IX symmetrical, connected mediobasally. Sternite IX slightly asymmetrical, widest near the apical twothirds, with sharply pointed base, and rounded apical margin ( Figure 1I View Figure 1 ). Tergite X slightly asymmetrical, with obtusely pointed base, bluntly angulate at lateral margins ( Figure 1H View Figure 1 ). Aedeagus pear-shaped, medium in size ( Figure 1J, K View Figure 1 ), basal bulb 0.95 mm long; anterior portion (from the apex of bulb to the base of parameres, Figure 1J View Figure 1 : h) short, 0.15 mm, with a pair of black sclerites near apex in dorsal view. Parameres symmetrical, thin, moderately curved inwards, and one-third the length of basal bulb. Internal sac thin, brown in colour, and soft, without spines, coiled several times within the base of median lobe ( Figure 1J View Figure 1 ).
Female. Unknown.
Distribution. China (Zhejiang: Lanao co.).
Etymology. The specific epithet is derived from the Chinese name (Pin-yin) of the type locality, Fengyangshan.
Remarks. Liotesba fengyangshana is similar in structure to L. punctiventris , but their labra and aedeagi are distinctly different from each other. This new species is distinguished from its congeners by the combination of the following characters: distributional pattern of punctures on head, long anteocular furrows, large eyes, a broad tooth of right mandible, and the distributional pattern of punctures on mesoscutellum.
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