Manipuria yuae, Xu & Bi & Liang, 2021

Xu, Yuan, Bi, Wenxuan & Liang, Hongbin, 2021, New record of the genus Manipuria Jacoby (Chrysomelidae, Criocerinae) from China, with description of a new species, ZooKeys 1009, pp. 29-43 : 29

Manipuria yuae sp. nov. Figures 1-3 , 5-8 , 9-10 , 15-16 , 18-19 , 21 , 22

Type locality.

China, Tibet, Mêdog, Baibung, Gelin village, altitude 1171 m.

Type material.

Holotype: male (IZCAS), China, Tibet, Mêdog, Baibung, Gelin village, 29.40322N, 95.18435E /1171 m, 2011.VIII.13, Wenxuan Bi coll./HOLOTYPE Manipuria yuae sp. nov., des. by Xu, Bi & Liang, 2020 [red label]. Paratype (two males and one female): one male (IZCAS), the same collecting data as holotype but labeled as paratype; one female (IZCAS), China, Tibet, Mêdog, Baibung, Gelin village, 29.40322°N, 95.18435°E /1171 m, 2011.VIII.11, Xiaodong Yang coll./PARATYPE Manipuria yuae sp. nov., des. by Xu, Bi & Liang, 2020; one male (KIZ), China, Yunnan, Ruili, 1981.X.16, Dazhi Dong coll./PARATYPE Manipuria yuae sp. nov., des. by Xu, Bi & Liang, 2020 [yellow label].

Diagnosis.

Body brownish red. Head longer than wide; gena elongate with wrinkles and setae, lateral sides behind eyes almost parallel, slightly constricted behind gena; antennae more than half of BL, 5-11 antennomeres cylindrical. Pronotal disc with fine punctures, lateral sides constricted after the middle. Scutellum triangular. Elytra with punctures regularly arranged, punctures absent apically.

Comparisons.

This species can be distinguished from M. dohertyi by the following combination of characters: lateral sides of head without prolongation in front of mandible, elytral unicolored (lateral sides of head with a tooth-like prolongation in front of mandible, elytra with four yellow patches in M. dohertyi ).

Description.

BL = 12.4-14.0 mm, BW = 4.2-4.5 mm. Head, pronotum, elytra, antennae, tibia, metasternum, abdominal sternite brownish red; prosternum, mesosternum, metepisternum black; ventral surface of femora brown, dorsal surface black; basal three tarsomeres brown, apical tarsomere black.

Head (Figs 1 , 3 , 5 , 9 ). HL/HW = 1.5-1.6; gena elongate, lateral sides behind eyes almost parallel, head slightly constricted after gena, area behind eyes with wrinkles and setae; vertex smooth in the center, punctate in lateral area, with a deep groove in the middle, with apex pointed dorsally before groove (Fig. 9 ); occipit with a shallow furrow medially, sparsely punctate; frontal tubercle glabrous, raised; clypeo-frontal area triangular, area near the anterior margin raised, disc with punctures and setae; labrum transverse, with 3-5 long setae on each outer apical angle; antennae filiform, more than half of BL, antennomeres 1 and 2 nearly globular, shiny, antennomere 1 twice as long as antennomere 2, antennomeres 3 and 4 pubescent and punctate, length almost equal, antennomeres 5-11 cylindrical, with punctures and pubescence, antennomeres 5-7 twice as long as wide, antennomeres 8-11 three times as long as wide.

Pronotum. PW/HW =1.0-1.1, PL/PW = 1.1-1.2; anterior angle protruding, posterior angle not protruding; lateral side constricted behind the middle; areas near anterior and posterior margins with a few fine punctures, middle areas of disc with four rows of irregular fine punctures; posterior transverse impression distinct, basal transverse groove weak. Scutellum triangular, posterior angles round, lateral area of base sparsely pubescent.

Elytra narrowed posteriorly. EL/EW = 1.7; suture angle rounded; humeri protruding, humeral groove shallow, basal impression distinct; striae with punctures regularly arranged, punctures in basal impression larger, remaining punctures smaller, and punctures disappeared apically, intervals with a few fine punctures; scutellar stria composed of 8-11 punctures; epipleura raised, with a row of small punctures; underside of the hind sutural angles with plectrum.

Mesosternum pubescent; mesosternal process short, narrow, densely pubescent, pointed ventrally. metasternal disc with very sparse setae; metepisternum densely pubescent.

Abdominal sternite with sparse setae and punctures, transverse impressions distinct in both lateral areas of each sternite; the eighth visible abdominal tergite with pars stidens.

Legs slender; tibia with dense punctures and pubescence; metafemur with dense setae in dorsal surface, with sparse setae in ventral surface, middle area with a large triangular denticle.

Male genitalia. Median lobe strongly sclerotized, tubular, curved, apical portion gradually narrowed, median foramen occupying 1/5 length of aedeagus (Figs 15 , 16 ); apex truncated in the middle (Figs 18 , 19 ); tegmen Y-shaped and slender, basal piece of tegmen triangular and relatively broad, lateral lobes narrow and combined with second connecting membrane; internal sac membranous, with dorsal, median, and ventral strongly scleritized (Figs 21A-C , 22A-C ).

Female reproductive organs (Figs 7 , 8 , 10 ). Tergites 8 and 9, sternites 8 and 9 of female sclerotized, posterior areas of tergite 8 and sternite 8 with sparse setae and apodemes, spiculum gastrale Y-shaped and expanded in the end, distal part of spiculum gastrale squared, margin curved; ovipositor with dense setae, distal part of ovipositor conical, short; spermatheca strongly sclerotized, complicatedly folded and curved; spermathecal duct relatively long, connected with spermatheca and bursa copulatrix; spermathecal gland curved, long.

Distribution.

China (Tibet, Yunnan).

Etymology.

The specific name Manipuria yuae is proposed in memory of Professor Peiyu Yu, who contributed greatly to the taxonomy on Chinese Criocerinae .

Host plant.

This species lived on Smilax sp. ( Smilacaceae ) according to observations of the second author (BWX).

Habitat.

The locality of the new species in Mêdog county is situated at the northernmost part of tropics in Asia. The vegetation is tropical seasonal rainforest. The climate is characteristic of high temperature, plentiful precipitation, and high humidity. The biodiversity is rich in this region. The forests are composed of tall trees, woody vines and epiphytes. The host plant of new species is Smilax sp. ( Smilacaceae ). It shares its habitat with plants such as Hedychium sp. ( Zingiberaceae ), Musa sp. ( Musaceae ), Epipremnum sp. ( Araceae ), Lysionotis spp. ( Gesneriaceae ), Alsophila sp. ( Cyatheaceae ), and Dryopteris sp. ( Dryopteridaceae ).

Remarks.

The specimen from Yunnan differs slightly from those from Tibet in having a lighter color (yellow-red), a shorter head (HL/HW = 1.5), and weaker sclerites (yellow) of the male genitalia.

When this new species is included, the concept of the genus Manipuria is expanded slightly by the absence of a projection on front of the mandible. The genus Manipuria differs from the genus Lilioceris mainly in having elongate gena, a less constricted neck, and small eyes.

Some characters of the new species suggest its intermediate position between Lilioceris and Manipuria as the head is only slightly enlarged and the ventral teeth on the head only weakly developed. It appears to occupy a position nearer to Lilioceris than to Crioceris as the pronotum is strongly narrowed in the middle. The relationship between Manipuria and Lilioceris needs further investigation.

Figures

Figures 1 - 4. Manipuria spp. 1 holotype of M. yuae sp. nov., dorsal view 2 holotype of M. yuae sp. nov., ventral view 3 head of holotype of M. yuae sp. nov., ventro-lateral view 4 head of M. dohertyi, male, ventro-lateral view.

Figures 5 - 8. Paratype of Manipuria yuae sp. nov., female 5 habitus, dorsal view 6 habitus, ventral view 7 female genitalia and reproductive organs, dorsal view 8 genitalia and reproductive organs, ventral view. Abbreviations: Sg spiculum gastrale; S 8 sternite 8; S 9 sternite 9; T 8 tergite 8; T 9 tergite 9; Sp D spermathecal duct; Sp spermatheca.

Figures 9, 10. Manipuria yuae sp. nov. 9 head, dorsal view 10 spermatheca and spermathecal gland.

Figures 15 - 20. Aedeagus and internal sac of Manipuria spp. 15 holotype of M. yuae sp. nov., lateral view 16 paratype of M. yuae from Yunnan, lateral view 17 M. dohertyi from Yunnan, lateral view 18 holotype of M. yuae sp. nov., dorsal view 19 paratype of M. yuae sp. nov. from Yunnan in dorsal view 20 M. dohertyi from Yunnan, dorsal view. Abbreviations: DS dorsal sclerite; MS dorsal sclerite; VS dorsal sclerite; IS internal sac; ML median lobe; SCM second connecting membrane; T tegmen.

Figures 21 - 23. Sclerites in internal sac 21 holotype of Manipuria yuae 22 paratype of M. yuae from Yunnan 23 M. dohertyi from Yunnan A lateral view B dorsal view C ventral view.