| Astycus | |
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| Genus: | Astycus Schoenherr, 1823 |
| Type species | |
| Curculio chrysochlorus Wied. | |
| Diversity | |
| About 49 species | |
| Synonyms | |
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Astycus is a genus of beetles belonging to the family Curculionidae. Species are distributed throughout India, Sri Lanka, Myanmar, China, Thailand and Sumatra. [1] [2] [3] [4]
Head consists with lateral eyes which are moderate and prominent. Rostrum deflected and longer than the head. Mentum trapeziform, whereas the emargination of the submentum truncate and without a peduncle. Antennce inserted before the middle of the rostrum with cylindrical scape. Prothorax with truncate apex, truncate or bisinuate base and the rounded sides. Scutellum present, with variable shapes. Elytra with elevated and sinuate basal margin. There is a distinct humeral callus constituting a true shoulder. Sternum with sometimes separated front coxa. Venter with rounded intercoxal process. Legs with rather longer front pair which is distinctly stouter than the others. [5]
Cyphicerini is a tribe of oriental broad-nosed weevils in the subfamily of beetles known as Entiminae.
Tanymecini is a tribe of broad-nosed weevils in the beetle family Curculionidae, subfamily Entiminae.
Astycus apicatus, is a species of weevil found in Sri Lanka.
Astycus immunis, is a species of weevil found in Sri Lanka.
Dereodus is a genus of beetles belonging to the family Curculionidae. Species are distributed throughout India, Sri Lanka, Middle East, Africa and introduced to Australia.
Astycus aequalis, is a species of weevil found in Sri Lanka.
Episomus is a genus of beetles belonging to the family Curculionidae. Species are distributed throughout Sri Lanka, India, Myanmar, Thailand, Malay Peninsula, Sumatra, Java, Borneo, Philippines, China and Japan. Many species are considered economically important, as they are pests of field beans, cotton and pigeon pea.
Oxyderces is a genus of broad-nosed weevils in the family Curculionidae distributed in South America. It can be recognized by the presence of dense setae on the apex of the rostrum and postocular setae.