Aegidinus simulatus Colbyı 2009

Frolov, Andrey V., Akhmetova, Lilia A. & Vaz-de-Mello, Fernando Z., 2019, Contribution to the knowledge of Aegidinus Arrow (Coleoptera: Scarabaeidae: Orphninae): new species and comments on the classification and nomenclature, JOURNAL OF NATURAL HISTORY 53 (11), pp. 725-747 : 743

Aegidinus simulatus Colbyı 2009

( Figure 4 (e – h))

Aegidinus simulatus Colbyı 2009: 32

Material examined

PERU. Loreto: Curaray Riverı Gaseoducto Barrettı 25 February 2008ı W. Yawarcani leg.ı two males and three females ( UNMSM). COLOMBIA. Meta: San Martínı Tocancipa Ranchı 520 mı forestı pitfallı April 2006ı J. Noriega leg.ı one male ( CEMT).

Diagnosis

Aegidinus simulatus is similar to Ae. brasiliensis ı Ae. howeae and Ae. colbyae sp. nov. in having mediobasal margins of the dorsomedial lobes of the parameres strongly sclerotisedı but can be distinguished from them by having the dorsal sides of the parameres strongly overlapping and separated by a slit ( Figure 4 (f)ı arrowed).

Description of male

Body length 9.5 – 10.0 mm. Colour uniformly blackish brown. Anterior margin of frontoclypeus with a horn rounded apically ( Figure 4 (e)).

Pronotum with widely rounded lateral marginsı narrower than elytraı 1.6 times wider than length. Posterior angles widely rounded. Anterior margin borderedı border narrowly interrupted mediallyı with shortı somewhat bimodal tubercle. Base of pronotum not borderedı with obsolete punctures laterally. Pronotal disc feebly excavated anteromediallyı with two gibbosities in centre. Pronotum punctate with a few large rounded punctures laterally and transversely elongated punctures anteromedially and with minuteı feebly visible punctures throughout.

Elytra almost as long as wideı widest medially and rounded apicallyı with humeral and apical humps. First elytral stria as continuous line not connected basally with undulate line from scutellum to humeral hump. Other striae marked with rows of sparse elongate punctures.

Protibia without medioapical tooth.

Aedeagus relatively long and slenderı ratio of phallobase length/paramere width 2.6 ( Figure 4 (f)). Ventroapical plate of phallobase absent ( Figure 4 (h)). Parameres symmetricalı mediobasal margins of dorsomedial lobes strongly sclerotised (4G)ı dorsal sides of the parameres strongly overlapping and separated by a slit ( Figure 4 (f)ı arrowed).

Distribution

The species was described from Aliñahui (Ecuadorı Napo Province) and Gigante (Huilaı Colombia). The new records are from Curaray River (Peruı Loreto) and San Martín (Colombiaı Meta) ( Figure 7 ).

Figures

Figure 4. Aegidinus spp. Ae. noriegai sp. nov., holotype (a–d), Ae. simulatus, male (e–h). Habitus in dorsal view (a, e); aedeagus in lateral (b, f) and ventral view (d, h); parameres in dorsal view (c, g).

Figure 7. Aegidinus spp. Locality records map.