Lilioceris latissima (Pic, 1932)

Figs 13, 14, 31A-D, 41A-C, 53A-D, 60A-C, 67

Crioceris latissimus Pic, 1932: 10 (Vietnam: Tonkin).

Lilioceris latissima: Kimoto and Gressitt 1979: 227.

Type material examined.

Syntype of Lilioceris latissimus (MNHN, photo), Crioceris latissimi Pic / Type / Museum Paris, Coll. M. Pic / Type / Syntype / Syntype, Lilioceris latissimi (Pic, 1932) / MNHN, Paris EC15768.

Other material examined.

Total 96 specimens. China: Yunnan: 1♀, Xishuangbanna, Mengla, 620-650 m, 1959.V.29, Suofu Li coll. ; 1♀ 1♂, Xishuangbanna, Menglun, 650 m, 1959.VIII.3, Fuji Pu coll. ; 1♀, Xishuangbanna, Damenglong, 650 m, 1958.VIII.8, Yiran Zhang coll. ; 1♀, Xishuangbanna, Mengla, 620-650 m, 1959.VI.8, Facai Zhang coll. ; 1♀, Lancang, 1200 m, 1957.VII.30, Lingchao Zang coll. ; 1♀, Xishuangbanna, Mengla, 700 m, 1959.V.19, Fuji Pu coll. ; 1♀, Xishuangbanna, Mengzhe, 870 m, 1958.VII.9, Shuyong Wang coll. ; 1♀, Xishuangbanna, Jinghong, 650 m, 1959.VI.8, Xuezhong Zhang coll. ; 1♀, Xishuangbanna, Mengzhe, 870 m, 1958.VII.11, Fuji Pu coll. ; 1♀, Xishuangbanna, Mengla, 620-650 m, 1959.VI.6, Yiran Zhang coll. ; 1♀, Xishuangbanna, Mengla, 620-650 m, 1959.VII.8, Suofu Li coll. ; 1♀, Xishuangbanna, Xiaomengyang, 850 m, 1958.IX.1, Xuwu Meng coll. ; 1♀, Xishuangbanna, Mengzhe, 620-650 m, 1959.V.9, Facai Zhang coll. ; 1♀, Xishuangbanna, Mengla, 620-650 m, 1959.VI.30, Facai Zhang coll. ; 2♀, Xishuangbanna, Menghun, 1200-1400 m, 1958.VI.13, Yiran Zhang coll. ; 1♀, Xishuangbanna, Xiaomenghun, 650-750 m, 1958.VI.13, Xuwu Meng coll. ; 1♀, Xishuangbanna, Menglun, 650 m, 1959.VIII.27, Fuji Pu coll. ; 1♀, Xishuangbanna, Mengla, 620-650 m, 1959.VII.13, Suofu Li coll. ; 1♀, Xishuangbanna, Menghai, Nannuo Shan, 1100-1500 m, 1957.IV.27, Fuji Pu coll. ; 1♀, Jinping, Mengla, 500 m, 1956.IV.20, Keren Huang coll. ; 1♀, Xishuangbanna, Mengla, 620-650 m, 1959.VII.8, Facai Zhang coll. ; 2♀, Xishuangbanna, Menglun, 650 m, 1959.VII.24, Facai Zhang coll. ; 1♀, Xishuangbanna, Menghun, 750 m, 1958.VI.5, Xuwu Meng coll. ; 1♀, Xishuangbanna, Menghai, 1400 m, 1980.III.10, Zhiming Li coll. ; 1♀, Xishuangbanna, Menglun, 650 m, 1958.IX.29, Shuyong Wang coll. ; 1♀, Xishuangbanna, Mengla, 620-650 m, 1959.VII.8, Facai Zhang coll. ; 1♀, Xishuangbanna, Mengla, 620-650 m, 1959.V.29, Suofu Li coll. ; 1♀, Jinghong, 1984.IV.20 ; 1♀, Ruili, Ruili Botanical garden, N 24.07230, E 97.81944 / 2012.X.27, 1152 m, Huang Xinle Leg. Inst. of Zoology, CAS ; 1♂, Cheli [= Jinghong], 580 m, 1957.III.10, Fuji Pu coll. ; 2♂, Xishuangbanna, Mengla, 620-650 m, 1959.VI.8, Suofu Li coll. ; 1♂, Xishuangbanna, Menglun, 650 m, 1959.VII.24, Yiran Zhang coll. ; 1♂, Xishuangbanna, Xiaomengyang, 850 m, 1958.IX.13, Yiran Zhang coll. ; 1♂, Xishuangbanna, Menglun, 650 m, 1959.VII.31, Yiran Zhang coll. ; 2♂, Xishuangbanna, Mengla, 620-650 m, 1959.VI.2, Fuji Pu coll. ; 1♂, Xishuangbanna, Mengla, 620-650 m, 1959.VII.8, Fuji Pu coll. ; 1♂, Xishuangbanna, Mengla, 620-650 m, 1959.VII.13, Suofu Li coll. ; 2♂, Xishuangbanna, Xiaomengyang, 850 m, 1958.IX.1, Xuwu Meng coll. ; 1♂, Xishuangbanna, Mengla, 620-650 m, 1959.V.19, Fuji Pu coll. ; 1♂, Xishuangbanna, Mengla, 620-650 m, 1959.V.19, Facai Zhang coll. ; 1♂, Xishuangbanna, Menghun, 1200-1400 m, 1958.VI.13, Yiran Zhang coll. ; 1♂, Xishuangbanna, Mengla, 620-650 m, 1959.VI.5, Fuji Pu coll. ; 1♂, Xishuangbanna, Menglun, 650 m, 1959.VII.24, Yiran Zhang coll. ; 1♂, Xishuangbanna, Xiaomengyang, 850 m, 1957.IX.6, Lingchao Zang coll. ; 1♂, Xishuangbanna, Mengla, 700 m, 1959.V.19, Fuji Pu coll. ; 1♂, Xishuangbanna, Mengla, 700 m, 1959.V.8, Fuji Pu coll. ; 1♂, Xishuangbanna, Menglun, 650 m, 1959.VII.27, Fuji Pu coll. ; 1♂, Xishuangbanna, Menglun, 650 m, 1959.VII.30, Fuji Pu coll. ; 1♂, Xishuangbanna, Menglun, 620-650 m, 1959.VII.8, Fuji Pu coll. ; 1♂, Xishuangbanna, Mengzhe, 1200 m, 1958.IX.14, Shuyong Wang coll. ; 1♂, Xishuangbanna, Mengla, 620-650 m, 1959.V.14, Facai Zhang coll. ; 1♂, Xishuangbanna, Damenglong, 650 m, 1958.VIII.8, Yiran Zhang coll. ; 1♂, Xishuangbanna, Menglun, 650 m, 1959.VIII.3, Suofu Li coll. ; 1♂, Xishuangbanna, Menglun, 650 m, 1959.VIII.25, Suofu Li coll. ; 1♂, Xishuangbanna, Menglun, 650 m, 1959.VIII.3, Facai Zhang coll. ; 1♂, Xishuangbanna, Menglun, 650 m, 1958.IX.29, Shuyong Wang coll. ; 1♂, Damenglong, 700 m, 1957.IV.12, Shuyong Wang coll. ; 1♂, Jinping, Mengla, 500 m, Keren Huang coll. ; 1♂, Xishuangbanna, Menglun, 650 m, 1959.VIII.3, Fuji Pu coll. ; 1♂, Xishuangbanna, Menglun, 650 m, 1959.VII.27, Fuji Pu coll. ; 1♂, Xishuangbanna, Xiaomengyang, 850 m, 1958.X.20, Fuji Pu coll. ; 1♂, Xishuangbanna, Damenglong, 650 m, 1958.IV.9, Fuji Pu coll. ; 1♂, Xishuangbanna, Xiaomengyang, 850 m, 1958.IX.6, Yiran Zhang coll. ; 1♂, Xishuangbanna, Mengzhe, 1200 m, 1958.IX.14, Shuyong Wang coll. 1♂, Xishuangbanna, Xiaomengyang, 850 m, 1958.VII.24, Yiran Zhang coll. ; 1♂, Jinghong, 1984.IV.19 ; 1♀, Xishuangbanna, Mengyang, Baihua Shan, 22.17720°N, 100.92428°E, 876 m, 2020.VI.3, Hongbin Liang and Yuan Xu coll. ; 1♀ 1♂, Xishuangbanna, Mengyang, Baihua Shan, 22.17720°N, 100.92428°E, 876 m, 2021.IV.3, Hongbin Liang, Yuan Xu and Neng Zhang coll. ; 2♀ 3♂, Jinping, Mengla, Wengdang village, 2011.IV.17, Hongbin Liang and Kaiqin Li coll. ; 1♀, Tengchong, Datang, 2014.VIII.3, Hongbin Liang coll. ; Guangxi: 1♂, Baishou, 1952.6.25; Vietnam : 1♂, Tonkin, Hoa Binh, 1939.V.II, leg. A de Cooman ; 2♂, Tonkin, Hoa Binh, 1940.V.III, leg. A de Cooman ; 2♂, Tonkin, Hoa Binh, leg. A de Cooman ; 2♂, Tonkin; 1♂, Museum Paris, Cochinchine, Amiral Vicnes, 1898 ; 1♀, Tonkin, Hoa Binh, 1939.V.II, leg. A de Cooman ; 1♀, Tonkin, Hoa Binh, 1940.V.III, leg. A de Cooman ; 1♀, Tonkin; 2♀, Tonkin, Hoa Binh, leg. A de Cooman.

Diagnosis.

Anterior angles of pronotum protruding, pronotal disc with two rows of fine punctures. Humeral groove of elytra indistinct, punctures sparse and diminishing posteriorly, absent on apical 1/3. Metasternum smooth.

Redescription.

BL = 7.7-8.9 mm, BW = 3.0-4.0 mm. Body brownish red.

Head (Figs 13, 41A). Vertex flat, with a shallow groove in the middle, sparsely punctate and pubescent laterally; frontoclypeal area triangular, lateral disc with sparse punctures and pubescent; labrum transverse, with sparse pubescent; antennomeres 5-10 almost as long as wide, flattened.

Pronotum (Figs 13, 41B). Anterior angles protruding, posterior angles slightly protruding; sides slightly constricted in the middle; disc flat; middle of disc with three or four rows of fine and shallow punctures. Scutellum triangular and pubescent.

Elytra (Figs 13, 31B). Humeri protruding, humeral groove and basal impression shallow; elytra without completely punctate striae, punctures sparse, diminishing posteriorly, absent on apical 1/3; intervals without punctures; epipleura raised, with a row of fine punctures.

Mesosternum pubescent. Metasternum smooth. Metepisternum densely pubescent (Fig. 41C).

Abdominal sternite (Fig. 31A). Lateral transverse impressions distinct on sternites 1-4, other areas of sternites 1-4 densely pubescent.

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

Male genitalia (Figs 53A-D). Ostium occupying 1/3 length of median lobe (Fig. 53A); apex hooked (Fig. 53B); tegmen Y-shaped, basal piece of tegmen triangular and broad, lateral lobes slightly sclerotized and combined with second connecting membrane; internal sac membranous, with distinct dorsal and ventral sclerites, posterior part of dorsal sclerite in dorsal view round, long and tubular (= flagellum), median sclerite small.

Female reproductive organs (Fig. 60A-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 convoluted.

Distribution

(Fig. 67). China (Yunnan; Guangxi); Vietnam. New record from China.

Host plant and habitat.

This species is fed on Smilax corbularia Kunth according to our observation in Yunnan. One locality of this species in Baihua Shan (Yunnan, Xishuangbanna, Jinghong) is situated at subtropics. This habitat is mixed primeval forest and farmland, with high temperatures, plentiful precipitation, and plenty of sunlight.

Remarks.

Lilioceris latissima can be distinguished from other species in this group by the smooth metasternum (Fig. 41C) and middle of pronotal disc with three or four rows of fine punctures (Fig. 41B).

This species was described by Pic (1932) from Tonkin, Vietnam. Subsequently, Kimoto and Gressitt listed simple characteristics in a key (1979: 220) and provided an illustration for the sternum and episternum (1979: 224, fig. 141). We examined the types (Figs 13, 14) and found that their identification was wrong: the lateroposterior corner of the metasternum of the type is glabrous, rather than densely pubescent as illustrated by Kimoto and Gressitt (1979). Furthermore, the distributions in Thailand and Laos listed by Kimoto and Gressitt need confirmation, and we therefore exclude them in this study.