对中国仙人掌的动物区系组成和食物网结构进行了较少的系统研究。在2013-2019年期间,我们对广西南部的仙人掌甲虫及其寄主植物进行了系统调查。共有66种的2,255个仙人掌个体,广西南部收集了23属10个部落。大多数物种属于Hispini部落(23种,34.8%),其次是Gonophorini部落(13种,19.7%),卡西迪尼(八种,12.1%)和Aspidimorphini(6种,9.1%)。其他(16种)属于Anisoderini部落,Botryonopini,Callispini,脑头酸,Notosacanthini和Leptispini。Notosacanthini部落是第一次从广西记录。Neownesia属(Botryonopini),Gonophora(Gonophorini),Micrispa(Gonophorini),在广西首次记录了Notosacanthina(Notosacanthini)和Prionispa(Oncocephalini)。总的来说,我们在广西南部获得了47个新记录物种,在整个广西获得了33个新记录物种,其中,CallispafrontalisMedvedev,1992年是中国新记录的。DactylispafeaeGestro(625个个体)和D.chinensisWeise(565个个体)是最常见的物种。共有69种,在广西南部鉴定出仙人掌属53属19科寄主植物。许多寄主植物协会是Cassidinae的新记录。定量食物网分析表明,广西南部的仙人掌主要以禾本科为食,盘旋科,莎草科和玫瑰科。一般来说,广西南部的仙人掌食物网中等复杂且稳定。这是对广西南部仙人掌属物种组成和寄主植物多样性知识的首次重大贡献。
Few systematic studies have been conducted on the faunal composition and food web structure of Cassidinae of China. During 2013-2019, we systematically investigated Cassidinae beetles and their host plants in the southern Guangxi. A total of 2,255 Cassidinae individuals from 66 species, 23 genera and ten tribes were collected in southern Guangxi. Most species belonged to the tribe Hispini (23 species, 34.8%), followed by the tribe Gonophorini (13 species, 19.7%), Cassidini (eight species, 12.1%) and Aspidimorphini (six species, 9.1%). The others (16 species) belonged to the tribes Anisoderini, Botryonopini, Callispini, Oncocephalini, Notosacanthini and Leptispini. The tribe Notosacanthini was recorded from Guangxi for the first time. The genera Neownesia (Botryonopini), Gonophora (Gonophorini), Micrispa (Gonophorini), Notosacantha (Notosacanthini) and Prionispa (Oncocephalini) were firstly recorded in Guangxi. In total, we obtained 47 newly-recorded species in southern Guangxi and 33 newly-recorded species in the whole Guangxi, of which, Callispafrontalis Medvedev, 1992 was newly recorded in China. Dactylispafeae Gestro (625 individuals) and D.chinensis Weise (565 individuals) were the most common species. A total of 69 species, 53 genera and 19 families of host plants were identified for Cassidinae in southern Guangxi. Many host plant associations are new records for Cassidinae. Quantitative food web analysis indicated that Cassidinae species in southern Guangxi primarily fed on Poaceae, Convolvulaceae, Cyperaceae and Rosaceae. Generally, the plant-Cassidinae food webs were moderately complex and stable in southern Guangxi. This is the first large contribution to the knowledge of the species composition and host plant diversity of Cassidinae in southern Guangxi.