Microbrachida gilvicornis Bierig, 1939

Caron, Edilson, Souza, Maria Geralda De & Pamblona, Ana Maria Santa Rosa, 2024, Rediscovery of Microbrachida Bierig, 1939, description of a new species from the Brazilian Amazon and its potential for biological control (Coleoptera, Staphylinidae), Zootaxa 5537 (4), pp. 541-550 : 545

Microbrachida gilvicornis Bierig, 1939

( Figs 1–5 )

Type material. Holotype deposited in FMNH ( Figs 1–5 ). Labels: 1) “Microbr./gilvicornis/Brg” [white label with submarginal green square, handwritten]; 2) “ La Caja , San. José /(Schmidt?)/ Costa Rica ” [white label, handwritten]; 3) “Field Mus. Nat. Hist./1966/ A. Bierig Colln./Acc. Z-13812" [white label, printed]; 4) “HOLOTYPE/teste A.Westrich2015/GDI Imaging Project” [purple label, printed]; 5) [unreadable, black label, handwritten?]; 6) “GENOTYPUS” [old yellow label, handwritten]; 7) “(QR Code)/FMNHINS/3048034/FIELD MUSEUM/Pinned” [white label, printed]; 8) “PHOTOGRAPHED/A. Westrich 2015/EMu Catalog” [blue label, printed].

Diagnosis. Microbrachida gilvicornis differs from M. perniciosae in having body rusty brown, with abdominal segments V to VI slightly darker; antennomeres with the same color; body with pubescence, more conspicuous on pronotum and elytra ( Fig. 1 ); tergum VIII with posterior margin emarginate ( Fig. 5 ).

Distribution. Costa Rica (San José: La Caja).

Remarks. Bierig (1939) questioned the sex of the specimen and suggested that the holotype is a female. Currently, it is not possible to determine its sex. According to Bierig (1939), Heinrich J. C. Schmidt collected the holotype in 1936.

Figures

FIGURES 1–5. Microbrachida gilvicornis, holotype (FMNH). 1. Habitus, dorsal view; 2. Habitus, lateral view; 3. Labels; 4. Antennae, dorsal view; 5. Abdomen, dorsal view. Scale bars: 1, 4, 5 = 0.5mm; 2 = 0.2mm. Photo credit: Jessica Wadleigh@The Field Museum, CIL-FMNH.