Departamento de Botnica y Zoologa, CUCBA, Universidad de Guadalajara, Camino Ramn Padilla Snchez # 2100, Nextipac, Zapopan, C.P. 45110, Jalisco, Mexico..
Departamento de Biociencias y Agrotecnologa, Centro de Investigacin en Qumica Aplicada, C.P. 25294, Saltillo, Coahuila, Mexico.
Zootaxa. 2022 Jun 8;5150(3):381-396. doi: 10.11646/zootaxa.5150.3.4.
The present study evaluated the taxonomy, morphology, and molecular variation of the egg parasitoids Paracentrobia subflava developing within eggs of the corn leafhopper Dalbulus maidis from Mexico, and Paracentrobia tapajosae developing within eggs of Tapajosa rubromarginata and eggs of D. maidis from Argentina. The parasitoids from the different host species were found to have a significant difference in body size and morphology of head, wings, ovipositor, and chaetotaxy. On the other hand, geometric morphometric analysis of the male genitalia showed no difference between parasitoids emerged from T. rubromarginata and D. maidis. Additionally, the COI and ITS2 molecular markers demonstrated that the parasitoids emerging from these two different hosts cluster into a single clade. This new information suggests the placement of P. tapajosae syn. nov. as a junior synonym of P. subflava.
本研究评估了在墨西哥玉米叶蝉卵内发育的 Paracentrobia subflava 和在阿根廷 Tapajosa rubromarginata 卵和玉米叶蝉卵内发育的 Paracentrobia tapajosae 的分类学、形态学和分子变异。来自不同宿主物种的寄生蜂在体型大小以及头部、翅膀、产卵器和毛序的形态上存在显著差异。另一方面，雄性生殖器的几何形态分析表明，从 T. rubromarginata 和 D. maidis 中孵化出的寄生蜂没有差异。此外，COI 和 ITS2 分子标记表明，从这两个不同宿主中孵化出的寄生蜂聚集成一个单系群。这些新信息表明，将 P. tapajosae syn. nov. 作为 P. subflava 的一个次同物异名进行处理。
