Aegidinus elbae Neita-Moreno, Akhmetova & Frolov, 2023

Frolov, Andrey V., Akhmetova, Lilia A. & Neita-Moreno, Jhon Cesar, 2023, Phylogenetic analysis of the Neotropical scarab beetle tribe Aegidiini (Coleoptera, Scarabaeidae, Orphninae) with description of new taxa, ZooKeys 1166, pp. 33-47 : 33

Aegidinus elbae Neita-Moreno, Akhmetova & Frolov sp. nov.

Fig. 3A-E

Differential diagnosis.

Aegidinus elbae sp. nov. is similar to A. colbyae Frolov et al., 2019, A. brasiliensis Arrow, 1904 and A. howeae Colby, 2009 in having mediobasal margins of dorsomedial lobes of parameres strongly sclerotized, protibia without medioapical tooth, and dorsal sides of parameres less overlapping, but differs from them in the parameres being distinctly longer and, in lateral view, abruptly separated into apical and basal parts (Fig. 3C ).

Type material.

Holotype. Male at IAvH (Fig. 3A ): "COLOMBIA, Caquetá, Solano PNN/ Chiribiquete, Río Sararamano/Bosque Verde militar 300 m/ 0°14'47"N, 72°37'24"W pitfall T2/T1 3-5.iv.2000, E. Gonzalez Leg.", " IAvH-E-256378". Paratype. Female at IAvH (Fig. 3B ) with following data: "COLOMBIA, Caquetá, Solano PNN/ Chiribiquete, Río Sararamano/Bosque Verde militar 300 m/ 0°14'47"N, 72°37'24"W pitfall /3-5.iv.2000, E. Gonzalez Leg.", " IAvH-E-256379".

Description.

Male (Fig. 3A, C, D ).

Body length 9.6 mm. Colour uniformly dark brown.

Anterior margin of frontoclypeus with horn rounded apically.

Pronotum with widely rounded lateral margins, narrower than elytra, 1.6 times wider than length. Posterior angles widely rounded. Anterior margin bordered, border complete medially, with feeble gibbosity. Base of pronotum not bordered, with a few large rounded punctures laterally and a few small medially. Pronotal disc feebly excavated anteromedially, with two gibbosities in centre. Pronotum punctate with a few large rounded punctures laterally and anteromedially and with minute, feebly visible punctures throughout.

Scutellum subtriangular, narrowly rounded posteriorly, about 1/11 length of elytra.

Elytra almost as long as wide, widest medially and rounded apically, with humeral and apical humps. First elytral stria as continuous line, connected basally with undulate line from scutellum to humeral hump. Other striae marked with rows of sparse punctures; punctures somewhat V- and comma-shaped on basal part of elytra, becoming smaller towards apices.

Macropterous.

Legs. Protibiae with 3 outer teeth, without medioapical tooth. Lateral margin basad of outer teeth not crenulate. Apical spur of protibia absent. Middle and hind legs similar in shape; metafemora and metatibiae about 1/8 longer than the mesofemora and mesotibiae. Mesotibia and metatibiae with 2 apical spurs, inner margin almost straight, outer margin with 1 transverse keel. Upper spur of hind tibiae as long as two basal tarsomeres. Claws 1/3 length of apical tarsomere. Femora almost impunctate.

Aedeagus. Phallobase without ventroapical plate. Parameres long (about 0.7 length of phallobase). Parameres symmetrical, of complex shape (Fig. 3C, D ): in the lateral view, they are abruptly separated into apical and basal parts; basal parts with 2 acute processes, apical parts somewhat dilating, giving the shape of a cup, acute and curved at very apex.

Female (Fig. 3B ) differs from male in having relatively wider elytra, pronotum and head without excavations and armature, and in having a protibial spur. Body length 8.7 mm.

Distribution.

The species is known from a single locality in Caquetá, Colombian Amazonia (Fig. 3E ).

Etymology.

The species is dedicated to Lic. Elba Moreno de Neita, mother of JCNM, to honor her memory.

Figures

Figure 3. Aegidinus elbae Neita-Moreno, Akhmetova & Frolov sp. nov. (A, C, D male, holotype B female, paratype) A, B habitus C aedeagus in lateral view D parameres in dorsal view E distributional record map.