Stenomorphus Dejean

Shpeley, Danny, Hunting, Wesley & Ball, George E., 2017, A taxonomic review of the Selenophori group (Coleoptera, Carabidae, Harpalini) in the West Indies, with descriptions of new species and notes about classification and biogeography, ZooKeys 690, pp. 1-195 : 83-84

Genus Stenomorphus Dejean

Stenomorphus Dejean, 1831: 696. TYPE SPECIES: Stenomorphus angustatus Dejean (by monotypy).- Gemminger and Harold 1868: 385.- Csiki 1932: 1080.- Blackwelder 1944: 47.- Noonan 1976: 42.- Reichardt 1977: 429.- Erwin and Sims 1984: 441.- Noonan 1985a: 46.- Ball et al. 1991: 939.- Lorenz 1998: 357.- Lorenz 2005: 378.

Agaosoma Ménétries, 1843: 63. TYPE SPECIES: Stenomorphus californicum Ménétries (by monotypy).

Agaasoma Chenu, 1851: 134 (misspelling).

Recognition.

The very long, narrow, cylindrical body, and elongated pronotum, distinctly longer than wide (Pl/PW = 1.07-1.45) and serial punctures only in striae 2 and 5, readily distinguish members of this genus from other selenophorine genera. Males with biseriate adhesive vestiture only on fore-tarsi. Additionally, females have gonocoxite 2 bifurcate apically, and the basitarsus of the fore-tarsi expanded, about twice the width of tarsomere 2.

Included species.

Only two taxa of Stenomorphus are recorded from the West Indies: S. californicus manni Darlington and S. cubanus Darlington.

Chorological affinities and relationships.

See Ball et al. (1991: 981-982) for a discussion of these topics. The two Greater Antillean taxa of Stenomorphus being closely allopatric ( S. cubanus , confined to Cuba, and S. californicus manni , confined to Hispaniola) would seem to suggest that they are adelphotaxa, but their relationships indicate a more complex situation, with each island being occupied independently and at a markedly different time.

Geographical distribution.

In the West Indies, this species group is recorded only from the Greater Antillean islands of Cuba and Hispaniola.