Nothochodaeus Nikolajev, 2005

Huchet, Jean-Bernard, 2019, New data on the taxonomy and distribution of Philippine Ochodaeidae and description of a new species from Central Visayas (Coleoptera: Scarabaeoidea), Insecta Mundi 722 (722), pp. 1-10 : 2

publication ID

https://doi.org/ 10.5281/zenodo.3674921

publication LSID

lsid:zoobank.org:pub:94265566-6B74-4058-93E7-07C7976FDD90

DOI

https://doi.org/10.5281/zenodo.3680920

persistent identifier

https://treatment.plazi.org/id/5A41974F-FFD6-9B17-FF79-FB78FC4A24C9

treatment provided by

Felipe

scientific name

Nothochodaeus Nikolajev, 2005
status

 

Ceratochodaeus Huchet, 2017, new status

Ceratochodaeus Huchet, 2017, described as a subgenus of Nothochodaeus Nikolajev, 2005 View in CoL

Type species. Nothochodaeus eliotti Huchet, 2014 View in CoL , by original designation ( Huchet 2017).

Etymology. From the Greek keratos, genitive of ΚΈρας (horn), combined with the root Ochodaeus , in view of the strong frontal horn in males.

Diagnosis. This genus, endemic to the Philippines, differs from the genus Nothochodaeus , to which it was previously considered as a subgenus, by the following characters: large size, greater than 10 mm, a strong and curved cephalic horn, truncated and excavated at the top in males, the apical truncation of variable shape depending on the species (see Fig. 1, 3 View Figures 1–3 , 6 View Figures 6–7 ), pronotum very convex, strongly declivous forward, protibiae invariably quadridentate externally. As unique feature within the family, males of the genus Ceratochodaeus have a strong median spiniform process originating on the sternite IV and ending in a protruding “keel” at the sternite VII (depending on the species, this process is sometimes placed asymmetrically (generally on the left side, in ventral view), and flanked on either side by a strong hollow depression (see Fig. 8 View Figures 8–9 ).

Unlike other Asian genera, such as Nothochodaeus Nikolajev, 2005 or Mimochodaeus Nikolajev, 2009 , whose endophallus copulatory pieces consist of one to several tightly curved toothed sclerites or sclerotized setae, species of the genus Ceratochodaeus possess one or two strong main sclerites (ScP), tubular or not, always smooth, frequently associated with 2 to 3 accessory sclerites (ScA) of variable shape, without toothed or serrated edges.

The conformation of the trapezoidal interlocking mechanism located on the tergite VII (propygidium), the mesocoxae widely separated by the metasternal process, and finally the hind wing venation places this new genus within the Nothochodaeini Nikolajev, 2015.

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Ochodaeidae

Loc

Nothochodaeus Nikolajev, 2005

Huchet, Jean-Bernard 2019
2019
Loc

Nothochodaeus

Huchet 2017: 2
Nikolajev 2005: 2
2017
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