Diorymerina

Diorymerus lancifer, from Davis (2009).
Belongs within: Baridinae.

The Diorymerina are a group of weevils characterised by an extremely high rounded upper profile, sometimes almost circular in side view. The dorsal surface is entirely or almost entirely smooth, and the beak is usually rather stout and strongly sculptured (though there are exceptions to this last character).

Characters (from Casey 1922, as Diorymerini): Body exceedingly convex, smooth, glabrous, without trace of scaly covering at any point, and at most, and very rarely, a few erect setae. Beak moderate in length, frequently notably short. Prosternum deeply and abruptly canalate, often capable of receiving the beak but not snugly. Femora subparallel, not spiculate beneath, sulcate along their under surface; tibiae generally angulate externally near base. Coloration usually deep black to piceo-rufous in whole or in part, rarely with a bright green metallic lustre.

<==Diorymerina
    |--Idiopsida nigra Hustache 1949 H49
    |--Matrilia longirostris Hustache 1949 H49
    |--Diorycentrinus Hustache 1949 H49
    |    `--*D. tuberculatus Hustache 1949 H49
    |--Testalthea Casey 1922 D09
    |    |--T. puncticollis [incl T. puncticollis var. punctulatus Hustache 1949] H49
    |    `--T. sublaevcollis Hustache 1949 H49
    |--Prodinus Casey 1922 D09
    |    |--P. jacobi Hustache 1949 H49
    |    `--P. strigipennis Hustache 1949 [=P. rufipennis ms] H49
    |--Diorymerus D09
    |    |--D. batesi Hustache 1949 H49
    |    |--D. boliviensis Hustache 1949 [=Dyorimerus (l. c.) boliviensis] H49
    |    |--D. lancifer Guérin-Méneville 1839 D09
    |    |--D. magnificus Hustache 1949 H49
    |    `--D. splendidus Hustache 1949 H49
    `--Hiotus D09
         |  i. s.: H. boliviensis Hustache 1949 H49
         |         H. cerasus Hustache 1949 H49
         |         H. crenulatus Hustache 1949 H49
         |         H. grandis Hustache 1949 [=H. major ms] H49
         |         H. inflatus Casey 1922 D09
         |         H. semirufus Hustache 1949 H49
         |--H. (Hiotopsis) H49
         |    |--H. (H.) micronychus Hustache 1949 H49
         |    |--H. (H.) ovatulus Hustache 1949 H49
         |    |--H. (H.) punctulicollis Hustache 1949 H49
         |    |--H. (H.) rubripes Hustache 1949 H49
         |    `--H. (H.) vinosus Hustache 1949 H49
         |--H. (Melanolia) H49
         |    |--H. (M.) bifoveifrons Hustache 1949 H49
         |    |--H. (M.) continuatus Hustache 1949 H49
         |    |--H. (M.) distortus Hustache 1949 H49
         |    |--H. (M.) foveifrons Hustache 1949 H49
         |    |--H. (M.) nitidus Hustache 1949 H49
         |    |--H. (M.) rufitarsis Hustache 1949 H49
         |    `--H. (M.) tempestivus Hustache 1949 H49
         `--H. (Spermidius) H49
              |--H. (S.) luteipennis Hustache 1949 H49
              `--H. (S.) sparsesetosus Hustache 1949 H49

*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).

[D09] Davis, S. R. 2009. Morphology of Baridinae and related groups (Coleoptera, Curculionidae). ZooKeys 10: 1-136.

[H49] Hustache, A. 1949. Nouveaux Barinae Sud Américains. Première partie—Ambatini, Peridinetini, Pantotelini, Cyrionichyna et Optanini. Boletim do Museu Nacional, nova serie, Zoologia 95: 1-55.