A review of the semipunctata species group within the genus Lilioceris Reitter, 1913 (Coleoptera, Chrysomelidae) Author Xu, Yuan https://orcid.org/0009-0000-3103-9125 Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China & College of Life Science, University of Chinese Academy of Sciences, Beijing 100049, China Author Qiao, Gexia Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China qiaogx@ioz.ac.cn Author Liang, Hongbin https://orcid.org/0000-0002-9668-1167 Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China lianghb@ioz.ac.cn text ZooKeys 2024 2024-03-20 1195 337 381 http://dx.doi.org/10.3897/zookeys.1195.114392 journal article http://dx.doi.org/10.3897/zookeys.1195.114392 1313-2970-1195-337 8D1BC8675D9048FE8B0BFD1CC9ACF53D F4666101E7835C6DAC7753101C48C4D7 Lilioceris discrepens (Baly, 1879) Figs 9 , 10 , 29A-D , 39A-C , 51A-D , 65A-C , 67 , 70A, B 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. ; 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 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. ; 1♀ , Malipo , Lao Shan Yaowanggu , 2021.4.19 / 23.00919°N , 104.82562°E , 1050 m , Hongbin Liang , Yuan Xu and Neng Zhang coll. ; 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. ; 1♂ , Gongshan , Dulongjiang , Maku village , 27.68979°N , 98.30513°E , 1733 m , 2021.V.31 , Hongbin Liang and Yuan Xu coll. ; 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. ; 1♀ 1♂ , Xinping , Dacunzi , 24.306612°N , 101.351084°E 1731 m , 2021.V.16 , Neng Zhang coll. ; 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 , 39A ). 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 x as long as wide, antennomere 11 slender. Pronotum (Figs 9 , 39B ). 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 , 29B ). 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 ). Abdominal sternite (Fig. 29A ). Lateral transverse impressions big and distinct on sternites 1-4, other areas of sternites 1-4 densely pubescent. Leg (Fig. 29C ). Femora with dense pubescence on the dorsal surface, with sparse pubescence on the ventral surface, without tooth. Male genitalia (Fig. 51A-D ). Ostium occupying 1/4 length of median lobe (Fig. 51A ); apex sharp (Fig. 51B ); 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 ). Female reproductive organs (Fig. 65A-C ). 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 ). China (Yunnan, Guangxi); Laos; Thailand; Vietnam. New record from China Host plant and habitat (Fig. 70A, B ). 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 , 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) .