Sumitrosis placida

Sumitrosis placida
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Arthropoda
Clade: Pancrustacea
Class: Insecta
Order: Coleoptera
Suborder: Polyphaga
Infraorder: Cucujiformia
Family: Chrysomelidae
Genus: Sumitrosis
Species:
S. placida
Binomial name
Sumitrosis placida
(Baly, 1885)[1]
Synonyms
  • Chalepus placidus Baly, 1885

Sumitrosis placida is a species of beetle of the family Chrysomelidae. It is found in Guatemala and Mexico (Jalisco, Tabasco).[2]

Description

The head is smooth and impunctate, the interocular space moderately produced. The antennae are scarcely more than half the length of the body and filiform. The thorax is broader than long, the sides obtusely angulate, straight and parallel from the base to the middle, then obliquely converging to the apex, the anterior angle armed with an oblique obtuse tooth, subcylindrical, broadly flattened and excavated on the hinder disc, closely covered with large, irregular, foveolate punctures. There is an irregular longitudinal space on the middle disc, commencing in front of the transverse depression, and extending anteriorly nearly to the apical margin, shining, impunctate, its medial line impressed with a fine longitudinal groove. A longitudinal vitta, abbreviated anteriorly, together with the extreme edge of the lateral margin, is blackish-piceous. The scutellum is oblong, the sides distinctly, the apex faintly, emarginate. The elytra are parallel, serrulate on the sides, the apex rounded and acutely denticulate. Each elytron has eight, at the extreme base with nine, rows of punctures, tricostate, the suture also elevated.[3]

Biology

The recorded food plant is Helicarpus pallidus.[4]

References

  1. ^ Integrated Taxonomic Information System
  2. ^ Mexican leaf beetles (Coleoptera: Megalopodidae, Orsodacnidae, and Chrysomelidae): new records and checklist
  3. ^ Biologia Centrali-Americana: Insecta (Coleoptera) Vol. VI. part 2 Public Domain This article incorporates text from this source, which is in the public domain.
  4. ^ Staines, C.L. (2012). "Hispines of the World: Tribe Chalepini" (PDF). USDA/APHIS/PPQ Science and Technology and National Natural History Museum. Retrieved August 26, 2025.

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