Myochrous

Myochrous
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Clade:	Pancrustacea
Class:	Insecta
Order:	Coleoptera
Suborder:	Polyphaga
Infraorder:	Cucujiformia
Family:	Chrysomelidae
Subfamily:	Eumolpinae
Tribe:	Eumolpini
Genus:	Myochrous; Erichson, 1847
Type species
	Myochrous immundus; Erichson, 1847
Synonyms
	Myochrous Chevrolat in Dejean, 1836; (nomen nudum)

Myochrous is a genus of leaf beetles in the subfamily Eumolpinae. It is known from North, Central and South America. There are over 50 described species in Myochrous. The generic name is a combination of the Ancient Greek words μῦς (mouse) and χρῶμα (color).

The southern corn leaf beetle (Myochrous denticollis) is a crop pest, and has been reported to damage corn in Illinois. Additionally, the species Myochrous melancholicus has been reported to damage banana fruit.

According to BugGuide and ITIS, the genus is now placed in the tribe Eumolpini instead of Adoxini.

Species

Myochrous adisi Medvedev, 2004 – Brazil
Myochrous armatus Baly, 1865 (cane leaf or bud beetle) – Brazil, Uruguay, Argentina, Chile
Myochrous austrinus Blake, 1950 – United States (Arizona), Mexico
Myochrous barbadensis Blake, 1947
- Myochrous barbadensis barbadensis Blake, 1947 – Barbados, Grenada, Trinidad, Guyana, Suriname
- Myochrous barbadensis coenus Blake, 1950 – Panama, Colombia, Venezuela
Myochrous blakeae Shute, 1974 – Nicaragua
Myochrous bolivianus Blake, 1950 – Bolivia
Myochrous brunneus Blake, 1950 – Brazil
Myochrous bryanti Blake, 1950 – Trinidad
Myochrous calcariferus Blake, 1950 – Bolivia
Myochrous carinatus Jacoby, 1891 – Belize
Myochrous chacoensis Blake, 1950 – Argentina
Myochrous crassimarginatus Blake, 1950 – French Guiana
Myochrous cubensis Blake, 1947 – Cuba
Myochrous curculionoides Lefèvre, 1897 – Brazil
Myochrous cyphus Blake, 1950 – United States (Texas, New Mexico), Mexico
Myochrous darlingtoni Blake, 1950 – Colombia
Myochrous denticollis (Say, 1824) (southern corn leaf beetle) – eastern Canada and US, Mexico
Myochrous elachius Blake, 1950 – Panama, Colombia
Myochrous explanatus Baly, 1865 – Venezuela, Colombia, Bolivia
Myochrous femoralis Jacoby, 1882 – Belize
Myochrous figueroae Brèthes, 1923 – Argentina
Myochrous floridanus Schaeffer, 1933
- Myochrous floridanus floridanus Schaeffer, 1933 – United States (Virginia to Florida to Louisiana)
- Myochrous floridanus texanus Blake, 1950 – United States (Texas)
Myochrous geminus Blake, 1950 – Ecuador, Peru
Myochrous hispaniolae Blake, 1947 – Haiti, Dominican Republic
Myochrous immundus Erichson, 1847 – Peru, Chile
Myochrous intermedius Blake, 1950 – United States (Iowa to Texas)
Myochrous jamaicensis Blake, 1947 – Jamaica
Myochrous latisetiger Blake, 1950 – Colombia, Venezuela
Myochrous leucurus Blake, 1950 – French Guiana
Myochrous longipes Blake, 1950 – Colombia, Peru, Venezuela, Brazil, Bolivia
Myochrous longulus LeConte, 1858 – western US, Mexico
Myochrous magnus Schaeffer, 1904 – United States (Texas), Mexico
Myochrous mamorensis Blake, 1950 – Bolivia
Myochrous melancholicus Jacoby, 1882 – Mexico
Myochrous monrosi Blake, 1950 – Argentina
Myochrous movallus Johnson, 1931 – United States (South Dakota to Texas)
Myochrous nanus Blake, 1950 – Bolivia, Paraguay
Myochrous normalis Blake, 1950 – Paraguay
Myochrous paulus Blake, 1950 – Guyana, French Guiana, Suriname, Venezuela
Myochrous pauxillus Schaeffer, 1933 – United States (Texas)
Myochrous platylonchus Blake, 1950 – Panama, Colombia, Venezuela
Myochrous portoricensis Blake, 1947 – Puerto Rico
Myochrous ranella Blake, 1950 – United States (Virginia to Florida to Louisiana)
Myochrous rhabdotus Blake, 1950 – Trinidad, Guyana
Myochrous sallei Baly, 1865 – Mexico
Myochrous sapucayensis Blake, 1950 – Paraguay
Myochrous severini Blake, 1950 – United States (North Dakota, South Dakota)
Myochrous spinipes Blake, 1950 – Venezuela
Myochrous squamosus LeConte, 1859 – western North America
Myochrous stenomorphus Blake, 1950 – Argentina
Myochrous tibialis Jacoby, 1882 – Mexico, Belize, Guatemala
Myochrous whitei Blake, 1950 – United States (California)

Species doubtfully included in the genus:

Myochrous dubius (Fabricius, 1801) – "America meridionali", possibly from Saint Croix?

References

1 2 "Myochrous Genus Information". BugGuide.net. Retrieved 2018-02-16.
1 2 "Myochrous Report". Integrated Taxonomic Information System. Retrieved 2018-02-16.
↑ "Myochrous Overview". Encyclopedia of Life. Retrieved 2018-02-16.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 Blake, D. H. (1950). "A Revision of the Beetles of the Genus Myochrous" (PDF). Proceedings of the United States National Museum. 101 (3271): 1–64. doi:10.5479/si.00963801.101-3271.1.
↑ Steffey, Kevin (2002). "Southern Corn Leaf Beetles Are Right on Schedule". The Bulletin: Pest Management and Crop Development Information for Illinois (7): 74–75.
↑ Cruz-Zapata, G. de la; Moreno-Jiménez, M.; Osorio-Osorio, R.; Hernández-Hernández, L. U.; Márquez-Quiroz, C.; Cruz-Lázaro, E. de la; Valdez-Carrasco, J. M. (2018). "Fruit-scarring Beetle Myochrous melancholicus Jacoby as a Potential New Pest of Banana". Southwestern Entomologist. 43 (1): 57–66. doi:10.3958/059.043.0124. S2CID 90390923.
↑ Medvedev, L. N. (2004). "A new species of Myochrous Dejean, 1837 from Brazil (Coleoptera, Chrysomelidae, Eumolpinae)" (PDF). Amazoniana. XVIII (1–2): 151–155. Archived from the original (PDF) on 15 January 2026.
1 2 3 Baly, J. S. (1864). "Descriptions of new Genera and Species of Phytophaga". Transactions of the Entomological Society of London. 12 (4): 333–357. doi:10.1111/j.1365-2311.1864.tb00109.x.
1 2 3 4 5 Blake, D. H. (1947). "The species of Myochrous from the West Indies (Coleoptera)". Proceedings of the Entomological Society of Washington. 49 (1): 22–28.
↑ Bechyné, J. (1997). Savini, V. (ed.). "Evaluación de los datos sobre los Phytophaga dañinos en Venezuela (Coleoptera). Parte I" (PDF). Boletín de Entomología Venezolana. Serie Monografias. 1: 1–278.
↑ Shute, S. L. (1974). "The species of Myochrous Erichson (Coleoptera: Chrysomelidae) occurring in Central America". Journal of Entomology Series B, Taxonomy. 42 (2): 183–193. doi:10.1111/j.1365-3113.1974.tb00073.x.
↑ Jacoby, M. (1890). "Eumolpidae". Insecta. Coleoptera, Supplement to Phytophaga. Biologia Centrali-Americana. Vol. 6. pp. 183–241.
↑ Jacoby, M. (1897). "Descriptions of some new species of Clythridae and Eumolpidae". The Entomologist. 30 (413): 261–264.
1 2 3 Jacoby, M. (1881). "Eumolpidae". Insecta. Coleoptera. Biologia Centrali-Americana. Vol. 6. pp. 105–187.
1 2 Schaeffer, C. (1933). "Short studies in the Chrysomelidæ (Coleoptera) (Continued)". Journal of the New York Entomological Society. 41 (4): 457–480. JSTOR 25004529.
↑ LeConte, J. L. (1858). "Description of New Species of Coleoptera, chiefly collected by the United States and Mexican Boundary Commission, under Major W. H. Emory, U. S. A." Proceedings of the Academy of Natural Sciences of Philadelphia. 10: 59–89.
↑ Schaeffer, C. (1904). "New Genera and Species of Coleoptera". Journal of the New York Entomological Society. 12 (4): 197–236. JSTOR 25003118.
↑ LeConte, J. L. (1859). "The Coleoptera of Kansas and eastern New Mexico". Smithsonian Contributions to Knowledge. 11: i–vi, 1–58. doi:10.5962/bhl.title.18986.

[bugref-1] 1 2 "Myochrous Genus Information". BugGuide.net. Retrieved 2018-02-16.

[itis-2] 1 2 "Myochrous Report". Integrated Taxonomic Information System. Retrieved 2018-02-16.

[eol-3] "Myochrous Overview". Encyclopedia of Life. Retrieved 2018-02-16.

[Blake1950-4] 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 Blake, D. H. (1950). "A Revision of the Beetles of the Genus Myochrous" (PDF). Proceedings of the United States National Museum. 101 (3271): 1–64. doi:10.5479/si.00963801.101-3271.1.

[5] Steffey, Kevin (2002). "Southern Corn Leaf Beetles Are Right on Schedule". The Bulletin: Pest Management and Crop Development Information for Illinois (7): 74–75.

[6] Cruz-Zapata, G. de la; Moreno-Jiménez, M.; Osorio-Osorio, R.; Hernández-Hernández, L. U.; Márquez-Quiroz, C.; Cruz-Lázaro, E. de la; Valdez-Carrasco, J. M. (2018). "Fruit-scarring Beetle Myochrous melancholicus Jacoby as a Potential New Pest of Banana". Southwestern Entomologist. 43 (1): 57–66. doi:10.3958/059.043.0124. S2CID 90390923.

[Medvedev2004-7] Medvedev, L. N. (2004). "A new species of Myochrous Dejean, 1837 from Brazil (Coleoptera, Chrysomelidae, Eumolpinae)" (PDF). Amazoniana. XVIII (1–2): 151–155. Archived from the original (PDF) on 15 January 2026.

[Baly1864-8] 1 2 3 Baly, J. S. (1864). "Descriptions of new Genera and Species of Phytophaga". Transactions of the Entomological Society of London. 12 (4): 333–357. doi:10.1111/j.1365-2311.1864.tb00109.x.

[Blake1947-9] 1 2 3 4 5 Blake, D. H. (1947). "The species of Myochrous from the West Indies (Coleoptera)". Proceedings of the Entomological Society of Washington. 49 (1): 22–28.

[Bechyné1997-10] Bechyné, J. (1997). Savini, V. (ed.). "Evaluación de los datos sobre los Phytophaga dañinos en Venezuela (Coleoptera). Parte I" (PDF). Boletín de Entomología Venezolana. Serie Monografias. 1: 1–278.

[Shute1974-11] Shute, S. L. (1974). "The species of Myochrous Erichson (Coleoptera: Chrysomelidae) occurring in Central America". Journal of Entomology Series B, Taxonomy. 42 (2): 183–193. doi:10.1111/j.1365-3113.1974.tb00073.x.

[Jacoby1890-12] Jacoby, M. (1890). "Eumolpidae". Insecta. Coleoptera, Supplement to Phytophaga. Biologia Centrali-Americana. Vol. 6. pp. 183–241.

[Jacoby1897-13] Jacoby, M. (1897). "Descriptions of some new species of Clythridae and Eumolpidae". The Entomologist. 30 (413): 261–264.

[Jacoby1881-14] 1 2 3 Jacoby, M. (1881). "Eumolpidae". Insecta. Coleoptera. Biologia Centrali-Americana. Vol. 6. pp. 105–187.

[Schaeffer1933-15] 1 2 Schaeffer, C. (1933). "Short studies in the Chrysomelidæ (Coleoptera) (Continued)". Journal of the New York Entomological Society. 41 (4): 457–480. JSTOR 25004529.

[LeConte1858-16] LeConte, J. L. (1858). "Description of New Species of Coleoptera, chiefly collected by the United States and Mexican Boundary Commission, under Major W. H. Emory, U. S. A." Proceedings of the Academy of Natural Sciences of Philadelphia. 10: 59–89.

[Schaeffer1904-17] Schaeffer, C. (1904). "New Genera and Species of Coleoptera". Journal of the New York Entomological Society. 12 (4): 197–236. JSTOR 25003118.

[LeConte1859-18] LeConte, J. L. (1859). "The Coleoptera of Kansas and eastern New Mexico". Smithsonian Contributions to Knowledge. 11: i–vi, 1–58. doi:10.5962/bhl.title.18986.