Bryanites
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Ordo: Coleoptera
Familia: Carabidae
Name
Bryanites Valentine, 1987 – Wikispecies link – Pensoft Profile
Type species
Bryanites samoaensis Valentine (by original designation).
Diagnosis
These beetles can be diagnosed from other Pacific platynine taxa by the much reduced subapical sinuation of the elytra, with the elytral margins straight to convex near the apex (Fig. 1). The pronotum is broadly orbiculate, with the lateral margins convex to only slightly concave anterad the rounded hind angles. The pronotum has the basal seta present and situated anterad the rounded hind angle. The elytra are moderately narrowed basally, with the basal elytral groove meeting the lateral elytral depression at an angle; i.e. the humeri are angulate. The male aedeagus exhibits characters typical of tribe Platynini (Fig. 4): 1, both parameres are rounded apically, or conchoid in shape; 2, the right paramere is smaller than the left, and the aedeagus lies with the right side ventral in repose; 3, the basal bulb is closed and bears a sagittal crest; and 4, the internal sac is tubular and unarmored, with slightly more melanized spicules present apically near the gonopore. Beetles of all three Bryanites species are brachypterous, with the wing rudiments narrow and elongate stenopterous straps, the length of the rudiments more than 4× the rudiment breadth. Beetle size is moderate to large, ranging from 11.7 mm in Bryanites barri (measurement of Barr 1987) to 16.2 mm in Bryanites graeffii.
Key to the Adults of Bryanites Valentine
Taxon Treatment
- Liebherr, J; 2017: Bryanites graeffii sp. n. (Coleoptera, Carabidae): museum rediscovery of a relict species from Samoa Zoosystematics and Evolution, 93(1): 1-11. doi
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