Metachroma

Metachroma is a genus of leaf beetles in the subfamily Eumolpinae. It is distributed from Ontario, Canada to Mendoza, Argentina, including the Antilles (where a large number of species occur). It has also been suggested that the genus extends to the Pacific Islands, though this is not confirmed. There are about 140 described species in Metachroma, 40 of which are found north of Mexico.[2][3][4][5][6] An extinct species is also known from the Eocene of the United States.

Metachroma Temporal range: Eocene–Present PreꞒ Ꞓ O S D C P T J K Pg N
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Coleoptera
Family:	Chrysomelidae
Subfamily:	Eumolpinae
Tribe:	Typophorini
Genus:	Metachroma Chevrolat in Dejean, 1836
Type species
Colaspis quercata Fabricius, 1801
Synonyms[1]
Atrachela Gistel, 1848

The name of the genus comes from the Ancient Greek μετα ("different") and χρῶμα ("color"), referring to the variations in color pattern found within many of the species.[6]

Species

• Metachroma acunai Blake, 1946[7]
• Metachroma acutulum Blake, 1962[8]
• Metachroma adustum Suffrian, 1866
• Metachroma amplicollis Blake, 1947[9]
• Metachroma anaemicum Fall, 1927
• Metachroma angusticolle Blake, 1973[10]
• Metachroma angustulum Crotch, 1873[11]
• Metachroma annulare Blake, 1970[6]
• Metachroma antennale Weise, 1885[12]
• Metachroma argentinense Blake, 1970[6]
• Metachroma ashtonae Blake, 1966[13]
• Metachroma barahonense Blake, 1946[7]
• Metachroma bimarginatum Blake, 1970[6]
• Metachroma bipunctatum Jacoby, 1891[14]
• Metachroma bredeni Blake, 1958[15]
• Metachroma brevistriatum Blake, 1946[7]
• Metachroma bridwelli Blake, 1970[6]
• Metachroma californicum Crotch, 1873[11]
• Metachroma carolinense Blake, 1970[6]
• Metachroma cartagenense Blake, 1970[6]
• Metachroma castaneum Blake, 1965[16]
• Metachroma chapini Blake, 1944[17]
• Metachroma cinctipes Blake, 1946[7]
• Metachroma clarkei Blake, 1970[6]
• Metachroma clarum Blake, 1970[6]
• Metachroma convexum Jacoby, 1882[18]
• Metachroma coronadense Fall, 1927
• Metachroma cornutum Blake, 1958[15]
• Metachroma costaricanum Bechyné, 1958[19]
• Metachroma darlingtoni Blake, 1946[7]
• Metachroma dentatum Blake, 1965[16]
• Metachroma dicoelotrachelus Blake, 1970[6]
• Metachroma egleri Bechyné & Bechyné, 1961[20]
• Metachroma ensiforma Blake, 1947[9]
• Metachroma farri Blake, 1962[8]
• Metachroma felis Blake, 1948[21]
• Metachroma fenestratum Blake, 1947[9]
• Metachroma flavolimbatum Blake, 1948[21]
• Metachroma floridanum Crotch, 1873[11]
• †Metachroma florissantensis Wickham, 1912[22]
• Metachroma fuscifrons Blake, 1970[6]
• Metachroma gagnei Blake, 1968[23]
• Metachroma gracile Blake, 1937[24]
• Metachroma grande Blake, 1958[15]
• Metachroma guatemalense Jacoby, 1882[18]
• Metachroma gundlachi Fernandez Garcia, 1998[25]
• Metachroma hardwarense Blake, 1970[6]
• Metachroma haydeni Blake, 1965[16]
• Metachroma hirsutum Blake, 1970[6]
• Metachroma hottense Blake, 1948[21]
• Metachroma howdenae Blake, 1970[6]
• Metachroma ignotum Blake, 1970[6]
• Metachroma imitans Blake, 1947[9]
• Metachroma immaculatum Blake, 1970[6]
• Metachroma inconstans Blake, 1970[6]
• Metachroma insulare Fall, 1927
• Metachroma interruptum (Say, 1824)
• Metachroma jacobyi Bechyné, 1955[26]
• Metachroma labrale Blair, 1933
• Metachroma laevicolle Crotch, 1873[11]
• Metachroma laevius Blake, 1946[7]
• Metachroma laterale Crotch, 1873[11]
• Metachroma leiotrachelus Blake, 1970[6]
• Metachroma leonardi Blake, 1970[6]
• Metachroma leucurum Blake, 1970[6]
• Metachroma longicolle Jacoby, 1891[14]
• Metachroma longicornis Blake, 1966[13]
• Metachroma longipenne Blake, 1970[6]
• Metachroma longipunctatum Blake, 1966[13]
• Metachroma longitarsus Blake, 1946[7]
• Metachroma longulum Horn, 1892[27]
• Metachroma lucidum Blake, 1970[6]
• Metachroma luridum (Olivier, 1808) (dark-sided metachroma)
• Metachroma macrum Blake, 1962[8]
• Metachroma maculipenne Schwarz, 1878
• Metachroma magnipunctatum Blake, 1970[6]
• Metachroma maniocae Blake, 1966[13]
• Metachroma marginale Crotch, 1873[11]
• Metachroma melanochrotum Blake, 1970[6]
• Metachroma mendozae Blake, 1970[6]
• Metachroma metrium Blake, 1947[9]
• Metachroma mexicanum Jacoby, 1882[18]
• Metachroma minutum Jacoby, 1882[18]
• Metachroma moaense Blake, 1962[8]
• Metachroma montanense Blake, 1970[6]
• Metachroma multipunctatum Blake, 1958[15]
• Metachroma mutabile Blake, 1970[6]
• Metachroma nanum Blake, 1958[15]
• Metachroma nassauense Blake, 1962[8]
• Metachroma nigricollis Blake, 1970[6]
• Metachroma nigromaculatum Blake, 1962[8]
• Metachroma nigrosignatum Blake, 1970[6]
• Metachroma nigroviride Blake, 1948[21]
• Metachroma oakleyi Blake, 1970[6]
• Metachroma obesum Blake, 1946[7]
• Metachroma obscuricollis Blake, 1970[6]
• Metachroma occidentale Blake, 1970[6]
• Metachroma odontotum Blake, 1970[6]
• Metachroma orientale Blake, 1970[6]
• Metachroma ornatum Jacoby, 1891[14]
• Metachroma oteroi Blake, 1944[17]
• Metachroma pallidum (Say, 1824)
• Metachroma panamense Blake, 1970[6]
• Metachroma paulum Blake, 1962[8]
• Metachroma pellucidum Crotch, 1873[11]
• Metachroma peninsulare Crotch, 1873[11]
• Metachroma piceum Blake, 1948[21]
• Metachroma presidiense Blake, 1970[6]
• Metachroma prognathus Blake, 1970[6]
• Metachroma quadrimaculatum Jacoby, 1891[14]
• Metachroma quercatum (Fabricius, 1801)
• Metachroma quintanae Blake, 1970[6]
• Metachroma regulare Jacoby, 1882[18]
• Metachroma rhizophorae Blake, 1973[10]
• Metachroma rosae Bryant, 1923[28]
• Metachroma rugicollis Blake, 1970[6]
• Metachroma rugosum Blake, 1962[8]
• Metachroma sandersoni Blake, 1970[6]
• Metachroma schwarzi Blake, 1948[21]
• Metachroma septentrionale Blake, 1970[6]
• Metachroma simile Blake, 1970[6]
• Metachroma suturale LeConte, 1858[29]
• Metachroma testaceum Blatchley, 1920
• Metachroma texanum Schaeffer, 1919[30]
• Metachroma tricharthrum Blake, 1946[7]
• Metachroma ustum LeConte, 1858[29]
• Metachroma utahense Blake, 1970[6]
• Metachroma variabile Jacoby, 1882[18]
• Metachroma varium Blake, 1970[6]
• Metachroma venezuelense Bechyné, 1953[31]
• Metachroma viticola Linell, 1898[32]
• Metachroma vittipennis Blake, 1970[6]
• Metachroma vulgare Blake, 1970[6]
• Metachroma wolcotti Bryant, 1926
• Metachroma xanthacrum Blake, 1947[9]
• Metachroma zayasi Blake, 1958[15]

The following five species from Cuba described by Suffrian in 1866, some of which were renamed by Clavareau in 1914, were considered doubtful by Doris Holmes Blake in her 1970 review of the genus. However, since she was not able to examine the original specimens for them, they remained unknown to her.[6]

• Metachroma cubaecola Clavareau, 1914[33] (= Metachroma puncticolle Suffrian, 1866)
• Metachroma laeviasculum Suffrian, 1866
• Metachroma lituratum Suffrian, 1866
• Metachroma sordidum Suffrian, 1866
• Metachroma suffriani Clavareau, 1914[33] (= Metachroma suturale Suffrian, 1866)

References

1. Bezděk, J. (2020). "Review of the genus-level names proposed by Johannes Gistel in Chrysomelidae (Coleoptera)". Acta Entomologica Musei Nationalis Pragae. 60 (1): 173–188. doi:10.37520/aemnp.2020.011.
2. "Metachroma Genus Information". BugGuide.net. Retrieved 2018-02-21.
3. "Metachroma Report". Integrated Taxonomic Information System. Retrieved 2018-02-21.
4. "Metachroma Overview". Encyclopedia of Life. Retrieved 2018-02-21.
5. "Browse Metachroma". Catalogue of Life. Retrieved 2018-02-21.
6. Blake, Doris H. (1970). "A Review of the Beetles of the Genus Metachroma Chevrolat (Coleoptera: Chrysomelidae)" (PDF). Smithsonian Contributions to Zoology. 57 (57): 1–111. doi:10.5479/si.00810282.57.
7. Blake, D. H. (1946). "Nine new species of Metachroma (Coleoptera) from the West Indies". Journal of the Washington Academy of Sciences. 36 (1): 22–27.
8. Blake, D. H. (1962). "Eight New Species of Metachroma from the West Indies (Coleoptera: Chrysomelidae)". Proceedings of the Entomological Society of Washington. 64 (3): 175–180.
9. Blake, D. H. (1947). "New eumolpid beetles from the West Indies". Journal of the Washington Academy of Sciences. 37 (9): 310–312. PMID 20260177.
10. Blake, Doris H. (1973). "Two new species of the genus Metachroma Chevrolat. (Coleoptera: Chrysomelidae)". Proceedings of the Entomological Society of Washington. 75 (4): 408–410.
11. Crotch, G. R. (1873). "Materials for the Study of the Phytophaga of the United States". Proceedings of the Academy of Natural Sciences of Philadelphia. 25 (1): 19–83. JSTOR 4624297.
12. Weise, J. (1885). "Beitrag zur Chrysomeliden und Coccinelliden Fauna Portorico". Archiv für Naturgeschichte. 51 (1): 144–168.
13. Blake, D. H. (1966). "Ten new chrysomelid beetles from the West Indies and Key West". Proceedings of the Entomological Society of Washington. 68 (3): 213–222.
14. Jacoby, M. (1890). "Eumolpidae". Insecta. Coleoptera, Supplement to Phytophaga. Biologia Centrali-Americana. 6. pp. 183–241.
15. Blake, D. H. (1958). "Some New West Indian Eumolpid Beetles" (PDF). Psyche. 65 (4): 91–98. doi:10.1155/1958/64819.
16. Blake, D. H. (1965). "Twelve new species of chrysomelid beetles from the West Indies (Coleoptera, Chrysomelidae)" (PDF). American Museum Novitates. 2217: 1–13. hdl:2246/3315.
17. Blake, D. H. (1944). "Notes on Five West Indian Chrysomelidae (Coleoptera)". Proceedings of the Entomological Society of Washington. 49 (9): 249–253.
18. Jacoby, M. (1881). "Eumolpidae". Insecta. Coleoptera, Phytophaga. Biologia Centrali-Americana. 6. pp. 105–187.
19. Bechyné, J. (1958). "Notizen zu den neotropischen Chrysomeloidea (Col. Phytophaga)". Entomologische Arbeiten aus dem Museum G. Frey Tutzing bei München. 9: 478–706.
20. Bechyné, J.; Špringlová de Bechyné, B. (1961). "Notas sobre Chrysomeloidea Neotropicais II" (PDF). Boletim do Museu Paraense Emilio Goeldi N.S. 37: 1–93.
21. Blake, D. H. (1948). "New species of Metachroma and other Chrysomelid beetles from the West Indies". Journal of the Washington Academy of Sciences. 38 (8): 274–279.
22. Wickham, H. F. (1912). "A report on some recent collections of fossil Coleoptera from the Miocene shales of Florissant". Bulletin from the Laboratories of Natural History of the State University of Iowa. 6 (3): 3–38.
23. Blake, D. H. (1968). "Ten new chrysomelid beetles from Dominica and Jamaica". Proceedings of the Entomological Society of Washington. 70 (1): 60–67.
24. Blake, D. H. (1937). "Ten New Species of West Indian Chrysomelidae (Coleoptera)". Proceedings of the Entomological Society of Washington. 39 (4): 67–78.
25. Fernandez Garcia, I. (1998). "Nueva especie de Metachroma Chevrolat (Coleoptera: Chrysomelidae) de Cuba" (PDF). Poeyana (455): 1–3.
26. Bechyné, J. (1955). "Reise des Herrn G. Frey in Südamerika: Eumolpidae (Col. Phytophaga)". Entomologische Arbeiten aus dem Museum G. Frey Tutzing bei München. 6: 569–657.
27. Horn, G. H. (1892). "The Eumolpini of Boreal America". Transactions of the American Entomological Society. 19: 195–234. JSTOR 25076581.
28. Bryant, G. E. (1923). "New Injurious Phytophaga from India and Brazil". Bulletin of Entomological Research. 13 (3): 261–265. doi:10.1017/S0007485300045338.
29. 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.
30. Schaeffer, C. (1919). "Synonymical and other notes on some species of the family Chrysomelidae and descriptions of new species". Journal of the New York Entomological Society. 27 (4): 307–340. JSTOR 25003871.
31. Bechyné, J. (1953). "Katalog der neotropischen Eumolpiden (Col. Phytoph. Chrysomeloidea)". Entomologische Arbeiten aus dem Museum G. Frey (in German). 4: 26–303.
32. Linell, M. (1898). "New species of Coleoptera of the family Chrysomelidae, with a short review of the tribe Chlamydini". Proceedings of the United States National Museum. 20 (1130): 473–485. doi:10.5479/si.00963801.1130.473.
33. Clavareau, H. (1914). "Chrysomelidae: 11. Eumolpinae". In Junk, W.; Schenkling, S. (eds.). Coleopterorum Catalogus. 59. Berlin: W. Junk. pp. 1–215.

Further reading

• Arnett, R.H. Jr.; Thomas, M. C.; Skelley, P. E.; Frank, J. H., eds. (2002). American Beetles, Volume II: Polyphaga: Scarabaeoidea through Curculionoidea. CRC Press.
• Arnett, Ross H. Jr. (2000). American Insects: A Handbook of the Insects of America North of Mexico. 2nd Edition. CRC Press. ISBN 978-0-8493-0212-1.
• Leng, Charles W. (1920). Catalogue of the Coleoptera of America, North of Mexico. John D. Sherman, Jr.
• Crotch, G.R. (1873). Check list of the Coleoptera of America, north of Mexico. Naturalists' Agency.
• Capinera, John L., ed. (2008). Encyclopedia of Entomology. Springer. ISBN 978-1402062421.
• Blatchley, W.S. (1910). An illustrated descriptive catalogue of the Coleoptera, beetles (exclusive of the Rhynchophora) known to occur in Indiana. Nature Pub.
• Papp, Charles S. (1984). Introduction to North American Beetles. Entomography Pubns.
• Riley, Edward G.; Clark, Shawn M.; Gilbert, Arthur J. (2001). "New records, nomenclatural changes, and taxonomic notes for select North American leaf beetles". Insecta Mundi. 15 (1): 1–17.
• White, Richard E. (1983). Peterson Field Guides: Beetles. Houghton Mifflin.