Aegidium onorei Frolov, Akhmetova

Frolov, Andrey V., Akhmetova, Lilia A. & Vaz-de-Mello, Fernando Z., 2017, Revision of the mainland species of the Neotropical genus Aegidium Westwood (Coleoptera: Scarabaeidae: Orphninae), Journal of Natural History 51 (19 - 20), pp. 1035-1090 : 1063-1065

publication ID

https://doi.org/ 10.1080/00222933.2017.1319519

DOI

https://doi.org/10.5281/zenodo.4746662

persistent identifier

https://treatment.plazi.org/id/03EE87E3-FF92-FFE3-BB18-AAE4FE0DFDB8

treatment provided by

Carolina

scientific name

Aegidium onorei Frolov, Akhmetova
status

 

Aegidium onorei Frolov, Akhmetova and Vaz-de-Mello, sp. nov.

( Figure 4 View Figure 4 (a–j))

Type locality

Ecuador, Cotopaxi, San Francisco de las Pampas.

Type material examined

Holotype, male at CEMT labeled ‘ ECUADOR: Cotopaxi. San Fco de las Pampas. III-1983, GOnore’ ( Figure 4 View Figure 4 (b)) . Paratypes: ECUADOR. One male at MNHN labeled ‘ Ecuador’ ; one male at CEMT labeled ‘ Ecuador A. Louste leg’. Cotopaxi: one male at BGCO labeled ‘ Ecuador Cotopaxi Las Pampas Dec. 1989 Legit : G. Onore’ ; one male and two females at CEMT labeled ‘ ECUADOR: Cotopaxi. San Fco de las Pampas. III-1983, GOnore’. Pichincha: one male at CMN labeled ‘ Ecuador Santo Domingo IV-82 G. Onore’; one male at CEMT labeled ‘ ECUADOR Sto . Domingo IV.82. G. Onore leg.’; one male and two females at MHNG labeled ‘ Équateur Pichincha Santo Domingo de los Colourados 500 m G. Onore IV.83 ’ .

Diagnosis

Aegidium onorei sp. nov. can be separated from other Aegidium species by the presence of granulate sides of the pronotum and mesotibiae with a tuft of dense setae on the inner side apically in males ( Figure 4 View Figure 4 (a,c)).

Description

Holotype, male ( Figure 4 View Figure 4 (a,e–i)). Body length 18.0 mm. Colour uniformly black.

Anterior margin of frontoclypeus slightly convex at middle, slightly sinuate each side of medial convexity, rounded laterally, without border. Frontoclypeus punctate with large, rounded punctures separated by about 1 puncture diameter; punctures on anterior part have slightly raised margin giving surface a rugose appearance.

Eyes relatively small: width about 1/8 distance between eyes in dorsal view.

Pronotum wider than elytra, 1.55 times wider than length, 0.6 times length of elytra. Posterior angles rounded. Anterior margin not bordered. Base of pronotum without furrow, not bordered. Pronotal disc flattened and excavated, with longitudinal depressed line basally. Lateral pronotal processes long, horn-shaped in lateral view, distinctly protruding past lateral margin outline of pronotum in dorsal view, slightly curved towards pronotal centre. Anterior pronotal process cone-shaped. Disc and anterior part of pronotum covered with round to elongate punctures with raised margin; base and lateral sides granulate.

Scutellum narrow subtriangular, about 1/11 length of elytra.

Elytra 1.2 times longer than wide, with humeral and apical umbones. Elytra widest in basal 1/3, tapering apically in dorsal view. First elytral carina feebly distinct, second indistinct. Elytra covered with relatively dense, round to elongated punctures. Punctures on disc and base have slightly raised margin.

Macropterous.

Mesotibiae with a tuft of setae ventroapically. Inner apical spur of mesotibia shorter than basal mesotarsomere and not curved downwards ( Figure 4 View Figure 4 (c)).

Aedeagus with relatively short (0.4 times length of phallobase), tapering parameres ( Figure 4 View Figure 4 (g)). Parameres slightly wider than apical part of phallobase in dorsal view ( Figure 4 View Figure 4 (h)). Separate ventrobasal transverse plate of parameres absent ( Figure 4 View Figure 4 (i)). Lateral teeth of parameres not protruding past paramere outline in dorsal view ( Figure 4 View Figure 4 (h)). Endophallus without strongly sclerotised sclerites ( Figure 4 View Figure 4 (e)). Cranial part of spiculum gastrale subtriangular, widened and rounded apically ( Figure 4 View Figure 4 (f)).

Female differs from male in having a protibial spur, relatively smaller, punctate pronotum without armature and excavations, and inner protibial tooth absent ( Figure 4 View Figure 4 (d)). Body length 13–16 mm.

Variation

Body length of the male paratypes 16.5–22.0 mm. Some males have a relatively smaller pronotum (as wide as or slightly narrower than elytra) with less developed lateral processes.

Distribution

Aegidium onorei sp. nov. is known from a few mid-altitude localities in western Ecuadorian Andes ( Figure 4 View Figure 4 (j)).

MHNG

Switzerland, Geneva, Museum d'Histoire Naturelle

MNHN

Museum National d'Histoire Naturelle

CMN

Canadian Museum of Nature

MHNG

Museum d'Histoire Naturelle

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Hybosoridae

Genus

Aegidium

GBIF Dataset (for parent article) Darwin Core Archive (for parent article) View in SIBiLS Plain XML RDF