Aegidinus colbyae Frolov, Akhmetova and Vaz-de-Mello, 2019

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 : 739-740

publication ID

https://doi.org/ 10.1080/00222933.2019.1606953

publication LSID

lsid:zoobank.org:pub:09AA5C86-5138-42A7-9646-9FF2A7F46767

DOI

https://doi.org/10.5281/zenodo.4561513

persistent identifier

https://treatment.plazi.org/id/9F138799-E559-B07D-9B13-5F5AD4A0FF08

treatment provided by

Valdenar

scientific name

Aegidinus colbyae Frolov, Akhmetova and Vaz-de-Mello
status

sp. nov.

Aegidinus colbyae Frolov, Akhmetova and Vaz-de-Mello sp. nov.

( Figure 5 View Figure 5 (a – f))

Type locality. Peru, Loreto, Iquitos, Sachamama.

Type material examined

Holotype ( Figure 5 View Figure 5 (a,e,d,f)), male at CEMT labelled ‘ PERU: LO: IQUITOS SACHAMAMA 100m 22-III-02 CUROE ROTTEN FISH ’.

Paratype ( Figure 5 View Figure 5 (b,c)), female at CEMT labelled ‘ PERU: LO: IQUITOS SACHAMAMA 100m 22-III-02 CUROE ROTTEN FISH ’.

Diagnosis

Aegidinus colbyae sp. nov. is most similar to Ae. brasiliensis Arrow and Ae. howeae Colby but can be distinguished from them by the dorsal processes of the parameres being carina shaped ( Figure 5 View Figure 5 (e), arrowed), while this process is tooth or spur shaped in Ae. brasiliensis and Ae. howeae .

Description

Male ( Figure 5 View Figure 5 (a)). Body length 10.8 mm. Colour uniformly blackish brown. Anterior margin of frontoclypeus with a long horn rounded apically.

Pronotum with widely rounded lateral margins, almost as wide as elytra, 1.5 times wider than length. Posterior angles widely rounded. Anterior margin bordered, border narrowly interrupted medially, with transversal, bimodal gibbosity. Base of pronotum not bordered, with a row of rounded punctures. 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.

Elytra almost as long as wide, widest medially and tapering 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 V-shaped near base, smaller and irregulary elongate on disc.

Protibia without medioapical tooth.

Aedeagus relatively long and slender, ratio of phallobase length/paramere width 2.8 ( Figure 5 View Figure 5 (f)). Ventroapical plate of phallobase absent ( Figure 5 View Figure 5 (d)). Parameres symmetrical, mediobasal margins of dorsomedial lobes strongly sclerotised (5E), dorsal processes of parameres carina shaped ( Figure 5 View Figure 5 (e), arrowed).

Female paratype ( Figure 5 View Figure 5 (b)) differs from male in having relatively wider elytra, pronotum and head without excavations and armature, and in having a protibial spur. Body length 8.5 mm. External female genitalia as in Figure 5 View Figure 5 (c).

Distribution

The species is known from a single locality in Peru: Loreto, Iquitos, Sachamama ( Figure 7 View Figure 7 ).

Etymology

The new species is named after Julia Colby (Peggy Notebaert Nature Museum, Chicago, USA).

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Hybosoridae

Genus

Aegidinus