Perilampus minasgerais Yoo and Darling, 2025

Perilampus minasgerais Yoo and Darling sp. nov.

Figs 7 View FIGURE 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 View Materials - UFMG). ROM Online Collection. GoogleMaps

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) GoogleMaps .

Description. FEMALE ( Fig. 7 View FIGURE 7 ). Length: 2.9 mm. Color: head iridescent greenish blue or violet ( Fig. 7F View FIGURE 7 ); 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 View FIGURE 7 ).

Head ( Fig. 7E–I View FIGURE 7 ): 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 View FIGURE 7 ); distance from lateral ocellus short, FCLO/LOD about 0.7 ( Fig. 7E View FIGURE 7 ). Scrobal cavity ( Fig. 7G View FIGURE 7 ): in anterior view narrow, SW/HW about 0.4. Ocelli ( Fig. 7E View FIGURE 7 ): 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 View FIGURE 7 ); 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 View FIGURE 7 ): CW/ CH about 1.4; ventral margin concave; setae evenly distributed.

Mesosoma ( Fig. 7B–D View FIGURE 7 ): 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 View FIGURE 7 ). Mesofemoral depression: smooth. Mesoscutum: punctures angulate, with narrow and weakly coriarious interspaces ( Fig. 7B View FIGURE 7 ); 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 View FIGURE 7 ): 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 View FIGURE 8 ). Length: 3.1 mm. As in female, except: Color: vertex and mesonotum black. Scape ( Fig. 8G View FIGURE 8 ): 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 View FIGURE 7 . 8E View FIGURE 8 ), a narrow frontal carina around the median ocellus ( Figs 7E View FIGURE 7 , 8B View FIGURE 8 ) and a male scape with a short, pitted area (about 0.2× scape length, Fig. 8G View FIGURE 8 ).

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 View FIGURE 7 , 8B View FIGURE 8 cf. Figs 3E View FIGURE 3 , 4B View FIGURE 4 , 5E View FIGURE 5 , 6B View FIGURE 6 ). The short, pitted area on the male scape of P. minasgerais is similar to that of P. cabecar , suggesting their sister relationship.