A NEW SUBGENUS AND TWO NEW SPECIES OF TRECHUS FROM ETHIOPIA (Coleoptera, Carabidae)
Two new species of <em>Trechus</em> from the Oromia Province (Ethiopia) are described in the present note. In the first part we describe <em>Archeotrechus</em>, a new microphtalmic <em>Trechus</em>, characterized by the dilation of only the first tarsal segment in...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
University La Sapienza of Rome
2012-04-01
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| Series: | Fragmenta entomologica |
| Online Access: | http://www.fragmentaentomol.org/index.php/fragmenta/article/view/30 |
| Summary: | Two new species of <em>Trechus</em> from the Oromia Province (Ethiopia) are described in the present note. In the first part we describe <em>Archeotrechus</em>, a new microphtalmic <em>Trechus</em>, characterized by the dilation of only the first tarsal segment in males and by the aedeagus with the dorsal part amost completely divided into two lobes: a sclerified connection exists only in the region of the basal ostium. To this subgenus we ascribe the new species <em>Trechus</em> (<em>Archeotrechus</em>) <em>relictus</em>, from the area of Mt. Sgona (Batu), of yellow-brown colour, rather flattened, with non sinuate pronotum and blunt fore and hind angles; two discal setae in the third stria. The aedeagus is much elongated, with a spherical apical button, copulatory piece triangular, lanceolate, with a sharp apex, little sclerified and very simple, typical of ancestral forms, like for instance <em>Minitrechus</em> Vigna Taglianti & Magrini, 2009. The female gonostyli, short and curved, bear at the apex two big setae on the inner edge. In the second part of the note we describe <em>Trechus</em> (s. str.) <em>oromiensis</em>, a new species of <em>bipartitus</em> Group (sensu novo), characterized by the presence of only one discal seta on elytra and by peculiar features of the aedeagus. |
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| ISSN: | 0429-288X 2284-4880 |