Perilampus minasgerais Yoo and Darling 2025, sp. nov.
Creators: name: Yoo, Jeong Jae
name: Darling, D. Christopher
Publisher: name: Zenodo
Year: 2025
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Perilampidae
Perilampus
Perilampus minasgerais

description: Perilampus minasgerais Yoo and Darling sp. nov.
Figs 7 [♀], 8[♂]
Type Material. Holotype [♀]. Brazil: Minas Gerais. São Gonçalo do Rio Abaixo. "Brasil, MG, São Gonçalo do Rio Abaixo, EPDA Peti, 19°53'14"S; 43°22'06"W Malaise, 9.i.2004, A.F.Kumagai leg. UFMG IHY 1522425 ". The holotype is point-mounted (♀: ROME189099 - UFMG). ROM Online Collection.
Paratype [1 ♂]. Brazil: Minas Gerais. São Gonçalo do Rio Abaixo. "Brasil, MG, São Gonçalo do Rio Abaixo, EPDA Peti, 19°53'02.4"S; 43°22'25.4"W 630m–880m, 1.xii.1997, D.Yanega leg. UFMG IHY 2500270 ", "BRAZIL Minas Gerais Est. Ecol. do Peti 1-XII-1997 D. Yanega" (1 ♂: D Yanega, ROME145008-UFMG).
Description. FEMALE (Fig. 7). Length: 2.9 mm. Color: head iridescent greenish blue or violet (Fig. 7F); mesosoma and metasoma iridescent greenish blue or violet; clypeus ventral margin black; antenna with scape and pedicel weakly iridescent greenish blue or violet, flagellum dark brown or black, lighter ventrad and distad (Fig. 7A).
Head (Fig. 7E–I): in dorsal view weakly transverse, width less than twice length, HW/HL about 1.9. Frontal carina: in anterior view straight to weakly sinuate below midlevel of eye; in dorsal view gradually narrowed V shape around median ocellus, FC/MOD about 1.3 (Fig. 7E); distance from lateral ocellus short, FCLO/LOD about 0.7 (Fig. 7E). Scrobal cavity (Fig. 7G): in anterior view narrow, SW/HW about 0.4. Ocelli (Fig. 7E): a line between anterior margin of lateral ocelli reaching anterior margin of median ocellus. POL/OOL about 1.6. Ocellar ratios LOD: POL: OOL: LOL: 1, about 2.6, 1.7, 0.8. Vertex: smooth, without large piliferous punctures. Parascrobal area: in lateral view abruptly narrowed slightly below mid-eye height, about 0.4 EH above lower eye margin (Fig. 7I); width narrow, PSW/EL about 0.3; sculpture smooth, without large piliferous punctures. Gena: with wide and long smooth area along outer eye margin, striate behind. Malar space: MSL/EH about 0.2. Lower face: with setae sparse laterad torulus, and sparse below. Clypeus (Fig. 7H): CW/ CH about 1.4; ventral margin concave; setae evenly distributed.
Mesosoma (Fig. 7B–D): Lateral panel of pronotum: slightly narrower than prepectus, LPP/PPT about 0.7; without flange or with small, rounded flange below level of mesothoracic spiracle in posterior oblique view (Fig. 7C). Mesofemoral depression: smooth. Mesoscutum: punctures angulate, with narrow and weakly coriarious interspaces (Fig. 7B); lateral lobe smooth along notaulus; parascutal carina broadly curved, acuminate. Mesoscutellum: apex with inner margins gradually diverging; punctures angulate, with narrow and weakly coriarious interspaces. Axilla (Fig. 7D): in lateral view imbricate dorsad, and carinate ventrad. Axillula: smooth dorsad. Fore wing: stigma small, about 2.0× as wide as postmarginal vein.
MALE (Fig. 8). Length: 3.1 mm. As in female, except: Color: vertex and mesonotum black. Scape (Fig. 8G): pits sparse, covering about 0.2× scape length.
Etymology. The specific epithet is a reference to Minas Gerais, Brazil, where both specimens were collected.
Diagnosis. Perilampus minasgerais can be recognized by a parascrobal area that is abruptly narrowed slightly below the midlevel of the eye (Figs 7I. 8E), a narrow frontal carina around the median ocellus (Figs 7E, 8B) and a male scape with a short, pitted area (about 0.2× scape length, Fig. 8G).
Distribution. Neotropical: Brazil (Minas Gerais).
Host association. Perilampus minasgerais is a hyperparasitoid, parasitizing dipteran parasitoids of Lepidoptera. Hosts: Tachinidae (Diptera) from Actinote parapheles Jordan (Nymphalidae) on Vernonia polyanthes Less (Asteraceae).
Remarks. Perilampus minasgerais is the only species within the P. carolinensis clade with a narrow frontal carina around the median ocellus (Figs 7E, 8B cf. Figs 3E, 4B, 5E, 6B). The short, pitted area on the male scape of P. minasgerais is similar to that of P. cabecar, suggesting their sister relationship.
description: Published as part of Yoo, Jeong Jae & Darling, D. Christopher, 2025, Taxonomic revision of the Perilampus carolinensis species complex (Hymenoptera: Chalcidoidea: Perilampidae), and the description of five new species, pp. 151-195 in Zootaxa 5621 (2) on page 176, DOI: 10.11646/zootaxa.5621.2.1, http://zenodo.org/record/15262606