Lilioceris discrepens (Baly, 1879)

Xu, Yuan, Qiao, Gexia & Liang, Hongbin, 2024, A review of the semipunctata species group within the genus Lilioceris Reitter, 1913 (Coleoptera, Chrysomelidae), ZooKeys 1195, pp. 337-381 : 337

publication ID	https://dx.doi.org/10.3897/zookeys.1195.114392
publication LSID	lsid:zoobank.org:pub:8D1BC867-5D90-48FE-8B0B-FD1CC9ACF53D
persistent identifier	https://treatment.plazi.org/id/F6B10B90-F5F7-5A88-9AF3-DECDEEAE4386
treatment provided by	ZooKeys by Pensoft
scientific name	Lilioceris discrepens (Baly, 1879)
status

Treatment

Figs 9 View Figures 7–10 , 10 View Figures 7–10 , 29A-D View Figures 27–31 , 39A-C View Figures 37–46 , 51A-D View Figures 51–56 , 65A-C View Figures 57–66 , 67 View Figure 67 , 70A, B View Figure 70

Crioceris discrepens Baly, 1879: 316 (Siam, Laos).

Lilioceris discrepens : Kimoto and Gressitt 1979: 220.

Type material examined.

Syntype of Lilioceris discrepens (NHML, photo), Type / Type / Baly Coll. / Crioceris discrepens Baly, Siam / Crioceris discrepens Baly, Type / BMNH(E)1344920.

Other material examined.

Total 29 specimens. China: Yunnan : 1♂, Gongshan, Dulongjiang, Maku , 2021.5.31 / 27.68936°N, 98.30804°E, 1691 m, Liang H.B., Xu Y., Zhang N. coll. GoogleMaps ; 1♀, Jinping, Jinzhuzhai , 2012. 5.14, Yang XD coll. ; 1♀ 1♂, Xinping, Ailao Shan , 2021.5.16 / N24.306612, E101. 351084, 1732 m, Zhang N. coll ; 1♂, Ruili, Bangdazhai , N. Y. Tsa coll. ; 1♀, Gongshan, Dulongjiang, Qinlandang , beach. 27.67854°N, 98.28731°E, 1970 m, 2006.8.31 day, Liu Ye collector California Academy GoogleMaps and IOZ. Chinese. Acad. Sci. , L. discrepens , det. Liang H.B. 2019 ; 1♀, Xishuangbanna, Mengla, Longlin Xincun , 21.52914°N, 101.49415°E, 1066 m / Hongbin Liang and Yuan Xu coll. GoogleMaps ; 1♀, Malipo, Lao Shan Yaowanggu , 2021.4.19 / 23.00919°N, 104.82562°E, 1050 m, Hongbin Liang, Yuan Xu and Neng Zhang coll. GoogleMaps ; 1♀, Xishuangbanna, Menghai, Bulang Shan , 2011.4.28, Hongbin Liang and Kaiqin Li coll. ; 2♀, Xishuangbanna, Mengla , 620-650 m, 1958.XI.16, Yiran Zhang coll. ; 1♀, Jinping, Changpotou , 1000 m, 1956.V.22, Keren Huang coll. ; 2♀, Xishuangbanna, Mengla , 620-650 m, 1959.VII.7, Facai Zhang coll. ; 1♀, Xishuangbanna, Menga , 1050-1080 m, 1958.V.17, Fuji Pu coll. ; 1♀, Jinping, Changpotou , 1200 m, 1956.V.23, Keren Huang coll. ; 1♀, Xishuangbanna, Menglun botanic garden, 1988.XI.20 ; 1♂, Xishuangbanna, Mengla , 620-650 m, 1959.VI.2, Yiran Zhang coll. ; 1♂, Xishuangbanna, Mengla , 620-650 m, 1959.V.29, Suofu Li coll. ; 1♂, Ruili, Bangdazhai , 2014.IX.4, NY Tsa coll. ; 1♀, Xishuangbanna, Mengla, Longlin New village , 21.52914°N, 101.49415°E, 1066 m, 2020.VI. 6, Hongbin Liang and Yuan Xu coll. GoogleMaps ; 1♂, Gongshan, Dulongjiang, Maku village , 27.68979°N, 98.30513°E, 1733 m, 2021.V.31, Hongbin Liang and Yuan Xu coll. GoogleMaps ; 1♀, Jinping, Jinzhuzhai , 2012.V.14, Xiaodong Yang coll. ; 1♀, Malipo, Lao Shan Yaowanggu , 23.00919°N, 104.82562°E, 1050 m, 2021.IV.19, Hongbin Liang and Yuan Xu coll. GoogleMaps ; 1♀ 1♂, Xinping, Dacunzi , 24.306612°N, 101.351084°E 1731 m, 2021.V.16, Neng Zhang coll. GoogleMaps ; Guangxi: 1♂, Guangxi, Longzhou, Daqing Shan , 360 m, 1963.IV.23, Chunguang Wang coll. ; Vietnam: 1♂, Museum Paris , Tonkin N., Reg Dha-Giang (H Riviere Claire) Siebens Olivier 1916 .

Diagnosis.

Anterior angles of pronotum protruding, pronotal disc with four or five irregular rows of fine punctures. Humeral groove of elytra distinct, punctures of elytra sparse and diminishing posteriorly, absent on apical 1/3. Femora of mid- and hind legs without tooth. Lateral metasternum with a long strip of pubescence.

Redescription.

BL = 9.5-14.5 mm, BW = 4.4-4.7 mm. Body brownish red.

Head (Figs 9 View Figures 7–10 , 39A View Figures 37–46 ). Vertex flat, with a deep groove in the middle, sparsely punctate and pubescent laterally; frontoclypeal area triangular, lateral disc with sparse punctures and pubescence; labrum transverse, with sparse pubescence; antennae nearly 1/2 of body length, antennomeres 1-4 nearly globular, antennomere 2 shortest, antennomeres 5-10 nearly 1.1 × as long as wide, antennomere 11 slender.

Pronotum (Figs 9 View Figures 7–10 , 39B View Figures 37–46 ). Anterior angles protruding, posterior angles not protruding; sides slightly constricted in the middle; disc flat; middle of disc with four or five irregular rows of fine punctures. Scutellum triangular and pubescent.

Elytra (Figs 9 View Figures 7–10 , 29B View Figures 27–31 ). Humeri protruding, humeral groove and basal impression distinct; elytra without completely punctate striae, punctures sparse and large in the base, diminishing posteriorly, absent on apical 1/3; intervals smooth; epipleura raised, with a sparse row of fine punctures.

Mesosternum pubescent. Lateral metasternum with a long and arcuate strip of pubescence, metepisternum densely pubescent. Metepisternum densely pubescent (Fig. 39C View Figures 37–46 ).

Abdominal sternite (Fig. 29A View Figures 27–31 ). Lateral transverse impressions big and distinct on sternites 1-4, other areas of sternites 1-4 densely pubescent.

Leg (Fig. 29C View Figures 27–31 ). Femora with dense pubescence on the dorsal surface, with sparse pubescence on the ventral surface, without tooth.

Male genitalia (Fig. 51A-D View Figures 51–56 ). Ostium occupying 1/4 length of median lobe (Fig. 51A View Figures 51–56 ); apex sharp (Fig. 51B View Figures 51–56 ); tegmen Y-shaped, basal piece of tegmen triangular and broad, lateral lobes sclerotized and combined with second connecting membrane; internal sac membranous, with distinct dorsal and ventral sclerites, posterior part of dorsal sclerite in dorsal view parallel, ventral sclerite elongated and curly (= flagellum), median sclerite small (Fig. 51C, D View Figures 51–56 ).

Female reproductive organs (Fig. 65A-C View Figures 57–66 ). Tergites 8 and 9, sternites 8 and 9 sclerotized, posterior areas of tergite 8, sternite 8, and apodemes with pubescence, spiculum gastrale Y-shaped and long; ovipositor with dense pubescence, distal part of ovipositor cylindrical, long and with a protuberance; spermatheca simple and hooked.

Distribution

(Fig. 67 View Figure 67 ). China (Yunnan, Guangxi); Laos; Thailand; Vietnam. New record from China

Host plant and habitat

(Fig. 70A, B View Figure 70 ). This species is fed on Smilax sp. according to our observations in Yunnan. One locality of this species in Maku village (Yunnan, Gongshan, Dulongjiang) is situated at the subtropics. The habitat is primeval forest, which is characterized by both high temperatures and humidity, plentiful precipitation, but without much sunlight. The forests are composed of tall trees, woody vines, and weeds.

Remarks.

The body size of this species is very large for the genus. It is similar to L. latissima , but differs by the pronotal disc with four or five irregular rows of fine punctures, and the lateral metasternum with a long arcuate strip of pubescence (in L. latissima , the pronotal disc has two rows of fine punctures, and the lateral metasternum is smooth).

Lilioceris discrepens was described by Baly (1879) from Laos, subsequently listed with simple characteristics in a key by Kimoto and Gressitt (1979: 220) and an illustration of the sternum and episternum ( Kimoto and Gressitt 1979: 224, fig. 14j), but we examined the types (Figs 9 View Figures 7–10 , 10 View Figures 7–10 ) and found that the identification was wrong. The lateral metasternum has a long strip of pubescence, rather than the sparse pubescence as illustrated by Kimoto and Gressitt (1979).