Morimospasma (Parvopama) shii, Wang & Xie & Wang, 2022

Wang, Ping, Xie, Guanglin & Wang, Wenkai, 2022, Study on the genus Morimospasma Ganglbauer, 1889 (Coleoptera, Cerambycidae Lamiinae) from Hubei, China, Zootaxa 5115 (4), pp. 532-540 : 537-539

Morimospasma (Parvopama) shii sp. nov.

( Figs 1A–B , 3A–C , 4A–D , 5C–D )

Description. male: Body length 10.05 mm (measured from vertex to elytral apices), humeral width 2.05 mm (measured across humeri).

Body dark brown. Head, prothorax and elytra mostly clothed with brown appressed pubescence, with sparse grey-white and yellow appressed setae. Pronotum clothed with brown appressed pubescence mixed with yellow and grey-white appressed pubescence on the middle of disc, fringed with dense short yellow hairs at anterior and posterior margin. Antenna clothed with brown appressed pubescence. Scutellum densely clothed with grayish-yellow pubescence. Each eltyron with a oval black macula of short setae behind the middle, with a narrow grayish-yellow annular marking around black macula. Ventral surface sparsely covered with short brown and yellow appressed setae. Legs clothed with sparse grey-white and yellow appressed setae, more densely on apical half of tibiae.

Head with frons short, transverse, with a well marked longitudinal median sulcus; frons slightly convex, with sparsely and coarsely punctation; vertex slightly concave. Eyes coarsely faceted and deeply emarginate; gena distinctly longer than lower eye lobe. Antennae longer than body, about 1.24 times as long as body; antennomere VIII surpassing elytral apex, antennal tubercles elevated, widely separated from each other; scape cylindrical, coarsely punctate, with an inconspicuous apical cicatrix; scape slightly shorter than antennomere III, antennomere III slightly longer than IV, about 1.19 times as long as IV, antennomeres IV–X gradually shortening, antennomere XI sharply pointed apically, nearly equal in length of VI.

Pronotum wider than long, slightly constricted at basal 1/ 5 in lateral, length about 1.23 times as long as basal width, about 1.13 times as long as apical width; disc strongly raised centrally, anterior half of the protuberance strongly depressed medianly, posterior portion slightly narrowed with a middle longitudinal groove; each side provided with a lateral spine before the middle, subacute apically, slightly directed backward. Scutellum triangle. Elytra elongate oval, about 3.08 times as long as humeral width, about 1.67 times as long as greastest elytral width; with sparse, deep punctures; strongly and steeply declivous behind the middle, apex rounded; surface scattered with small tubercles before black patches, each elytron with inconspicuous three longitudinal row of tubercles with yellow pubescence at the tip: the first row with tubercles smallest at inner fourth reaching the anterior of black patche; the second row at outer fourth reaching the anterior of black macula; the third row with tubercles longest behind the humerus reaching to the posterior of black macula. Prosternal process narrow, lower than the coxae, gradually widening at apex; procoxal cavities closed posteriorly. Mesosternal process without tubercle; mesocoxal cavities opened externally to mesepimera. First abdominal ventrite longerst, distal abdominal ventrite slightly concave, with arcuate apical margin. Legs moderately long; metafemora reaching fifth abdominal segment; first metatarsal segment slightly shorter than following two segments combined; claws divergent.

Male genitalia ( Figs 3A–C , 4A–D ). Tergite VIII transverse, nearly transversely truncated apically, length about 1.25 times as long as wide, dorsal surface on apical 1/6 and apical third of lateral margins with sparse long setae. Tegmen slightly bent in lateral view, paramere moderately long, gently narrowed toward subacute apex, length about 0.97 times as long as width, apex with moderately dense long setae; median lobe moderately curved in lateral view, nearly equal to the length of tegmen; median struts about half length of median lobe, apex of ventral plate rounded; endophallus long, mostly membranous.

Female. Unknown.

Remarks. The new species has an oval black macula on each elytron, which is obviously different from other members in this genus. At first glance, the new species is very similar to M. (Parvopama) granulatum Chiang , however, it can be easily distinguished from the latter by the combination of the following characters: body mostly dark brown, elytra more elongate, about 1.67 times as long as greatest elytral width, elytral maculae oval. While in M. (Parvopama) granulatum , body usually reddish brown, elytra slightly wider, about 1.4–1.5 times as long as greatest elytral width, elytral maculae semi-rounded ( Bi, 2021).

Type material examined. Holotype (male), China: Hubei, Shennongjia Forestry District, Huangbaiqian village , E 110°05′52″, N 31°32′45″, Alt. 1600m, Aug 20, 2018, coll. by Ping Wang.

The holotype is deposited in the Entomological Museum of Yangtze University .

Distribution. China: Hubei (Shennongjia).

Etymology. This species is named after Professor Fuming Shi, an expert in Orthoptera classification from China, who is the teacher of the first and second authors.

Figures

FIGURES 1A–D. Habitus of Morimospasma species. A–B. M. (Parvopama) shii sp. nov., holotype; C–D. M. (Parvopama) granulatum Chiang, 1981, male; A, C. dorsal view; B, D. ventral view. Scale bar: 5 mm.

FIGURES 3A–C. Tegmen of Morimospasma (Parvopama) shii sp. nov. holotype. A. ventral view; B. lateral view; C. dorsal view. Scale bar: 1.0 mm.

FIGURES 4A–H. Male abdominal segments VIII and parameres of Morimospasma species. A–B, E–F. tergite VIII; C–D, G–H. parameres; A, C, E, G. ventral view; B, D, F, H. dorsal view; A–D. M. (Parvopama) shii sp. nov., holotype; E–F. M. (Parvopama) granulatum Chiang, 1981. Hubei; Scale bar: 1 mm.

FIGURES 5A–D. Habitus of Morimospasma granulatum Chiang, 1981, female, from Mianxian, Shaanxi. A. dorsal view; B. ventral view; C. lateral view; D. labels.