Linoma

Solenosternus oblongulus (=Linoma oblongula), photographed by Juan Enrique Barriga-Tuñón.
Belongs within: Baridinae.

Linoma was established by Casey (1922) as a genus of weevils from South America. It was later synonymised with Solenosternus by Kuschel (1983).

Characters (from Casey 1922): More elongate than Heterosternus with relatively smaller prothorax, sparse and fine sculpture and very slender beak; tarsi short, with relatively long strigose and basally subconnate claws. Antennae are inserted slightly (male) or much (female) behind middle of beak, short, club small, very short and broad, only slightly longer than wide, but little longer than the three preceding segments and abruptly formed. Prosternum very narrowly and deeply, evenly sulcate, the concavity gradually obsolete toward the suture, where the surface becomes anteriorly cuspidate, the coxae remote, separated by much more than their own width, the lobe prominent but nearly twice as wide as long, unimpressed and feebly, medially sinuate at apex. Prothorax gradually tubulate, the basal lobe rather prominent, rounded, the scutellum flat, semifree and somewhat broadly ogival, the elytra finely but sharply, deeply grooved, the pygidium small, rough and semicircular. First ventral suture absent medially.

<==Linoma
    |--L. carinata Hustache 1951 H51
    |--L. coelestis Hustache 1951 H51
    |--L. cylindrica Hustache 1951 H51
    |--L. cymba Hustache 1951 H51
    |--L. egena Hustache 1951 H51
    |--L. elongatula Hustache 1951 H51
    |--L. foveifrons Hustache 1951 H51
    |--L. lucens Hustache 1951 [=L. nigerrima ms] H51
    |--L. nigrocyanea Hustache 1951 H51
    |--L. oblongula Hustache 1951 H51
    |--L. persimilis Hustache 1951 H51
    |--L. subdentata Hustache 1951 H51
    `--L. subpilosa Hustache 1951 [=L. pilosella ms] H51

*Type species of generic name indicated

REFERENCES

Casey, T. L. 1922. Notes on the Coleoptera vol. 10. Studies in the rhynchophorous subfamily Barinae of the Brazilian fauna. New Era Printing Company: Lankester (PA).

[H51] Hustache, A. 1951. Nouveaux Barinae Sud Américains. Deuxième partie – Barina. Boletim do Museu Nacional, nova serie, Zoologia 96: 1-78.

Kuschel, G. 1983. New synonymies and combinations of Baridinae from the Neotropic and Nearctic regions (Coleoptera: Curculionidae). Coleopterists Bulletin 37 (1): 34-44.