Two new species of Nealiolus Mason (Hymenoptera, Braconidae, Brachistinae) reared from pest weevils (Coleoptera, Curculionidae) Author Shimbori, Eduardo M. Author Wengrat, Ana P. G. S. Author Savaris, Marcoandre Author Galvão, William B. Author Nanini, Frederico Author Garcia, Sarah S. P. Author Corrêa, Alberto S. text Zootaxa 2020 2020-01-28 4729 1 116 126 journal article 24229 10.11646/zootaxa.4729.1.8 6e58b963-16c5-4143-bc52-b5e911af4f87 1175-5326 3629072 53D586E2-9516-47E8-B033-A7D207CFEFF3 Genus Nealiolus Mason, 1974 Nealiolus Mason, 1974 . Proc. Entomol. Soc. Washington 76(3): 241. Type species: Sigalphus curculionis Fitch, 1859 ; by original designation. Diagnosis. Body length 3‒6 mm . Head: ventral margin of clypeus without median tooth; occipital carina complete and meeting hypostomal carina ventrally; second flagellomere longer than first. Legs: tarsal claws with large basal lobe. Metasoma: carapace-like with articulated T1/T2 and more or less distinct transverse groove between T2/T3; laterotergites 2 and 3 completely fused, both are sharply separated from median tergite, laterotergite 3 strongly re- duced; ovipositor usually longer than metasoma, except for N. crassipes (slightly shorter). Other characters agree with the detailed diagnosis for Aliolus presented by Martin (1956) . Included species. Nearctic: Nealiolus acutulus ( Martin, 1956 ) ; Nealiolus auriculatus ( Martin, 1956 ) ; Nealiolus collaris (Brues, 1907) ; Nealiolus crassipes ( Martin, 1956 ) ; Nealiolus mexicanus (Cresson, 1872) ; Nealiolus rufus (Riley, 1871) . Neotropical: Nealiolus chayohtli Wengrat & Shimbori sp. n. ; Nealiolus jaboticaba Shimbori & Wengrat sp. n. New World: Nealiolus curculionis (Fitch, 1859) (= inaratus Martin, 1956 ; tibiator Cresson, 1872) Biology. Host are known for five of the nine species. Those that have been reared are solitary parasitoids in beetles of the family Curculionidae (Coleoptera) ( Shaw 1995 ). Comments. Nealiolus is very similar to Aliolus , in having a carapace-like metasoma, the carapace formed by three segments and articulated between T1/T2, but also with distinct transverse sulcus indicating line between T2/ T3. This features separate both genera from the remainder of Brachistini . The two genera, one endemic to the New World, and the other mainly Holarctic, are distinguished by the fusion of laterotergites 2 and 3, and strong reduction of laterotergite 3 in Nealiolus , being distinctly separate and not reduced in Aliolus . Distribution. New World.