Xenochalepus palmeri

Xenochalepus palmeri
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Coleoptera
Suborder:	Polyphaga
Infraorder:	Cucujiformia
Family:	Chrysomelidae
Genus:	Xenochalepus
Species:	X. palmeri
Binomial name
Xenochalepus palmeri (Baly, 1885) [1]
Synonyms
Chalepus palmeriBaly, 1885

Xenochalepus palmeri is a species of beetle of the family Chrysomelidae. It is found in Mexico (Coahuila). ^[2]

Description

The interocular space is moderately produced, 5-sulcate, the middle sulcus short, terminated anteriorly by a longitudinal ridge. The antennae are less than half the length of the body, filiform and slightly thickened beyond the middle. The thorax is transverse, the sides straight and nearly parallel from the base to beyond the middle, then obliquely converging and slightly sinuate to the apex, the anterior angle armed with a short oblique tubercle, above transversely convex, flattened and broadly excavated on the hinder disc. On either side is a longitudinal ill-defined irregular torulose space, which extends from the basal nearly to the apical margin and on the medial line is also a very fine longitudinal groove. The elytra are narrowly oblong, subparallel, rounded at the apex, deeply subquadrate-emarginate at the sutural angle. The margin is serrulate, the apical serratures rather coarser than those on the side. The upper surface is granulose. Each elytron has ten, at the base with eleven, rows of deeply punctured striae, the second interspace strongly, the eighth moderately, costate, the latter finely serrulate on the hinder disc, the fourth and sixth faintly costate at the base and apex, the suture also distinctly elevated. Each elytron has a wedge-shaped rufo-fulvous basal patch, which stretches along the base from the suture nearly to the lateral margin, and extends downwards (covering the humeral callus) for about one fourth the length of the elytron. ^[3]

Biology

The food plant is unknown. ^[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 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.