Isodacrys Sharp, 1911

Cortés-Hernández, Kevin A. & Morrone, Juan J., 2019, A key to the Mexican genera of Tanymecini (Coleoptera: Curculionidae), Zootaxa 4615 (1), pp. 46-56 : 50

publication ID	https://doi.org/10.11646/zootaxa.4615.1.2
publication LSID	lsid:zoobank.org:pub:A92644B1-DA05-438C-B5D6-10C3102FFB3F
DOI	https://doi.org/10.5281/zenodo.4330094
persistent identifier	https://treatment.plazi.org/id/03A46D12-1C7A-FFAF-FF1B-4DCEAA2AFB59
treatment provided by	Felipe (2020-08-22 00:38:03, last updated 2024-11-29 16:20:09)
scientific name	Isodacrys Sharp, 1911
status

Treatment

Isodacrys Sharp, 1911 View in CoL

( figures 15, 16 View FIGURES 11–16 )

Of the 13 described species, 10 are distributed in Mexico ( Morrone 1999). Adults have been collected either from herbaceous plants of different families ( Asteraceae , Verbenaceae , Fabaceae , Cucurbitaceae and Solanaceae ) and trees ( Pinus , Quercus , Celtis , Condalia and Eucalyptus ), suggesting that species are general feeders during this stage ( Howden 1961; Anderson 2002). They can be also found in leaf litter and under rocks. All Isodacrys are apterous and there are some undescribed species ( Howden 1970). Its taxonomic position in Tanymecini is due to morphological affinities with other genera ( Sharp 1911; Howden 1961. 1970). Differences among Isodacrys , Pandeleteinus and some West Indian genera such as Paradacrys and Paululusus are mainly based on wing presence and other characteristics like width, length or curvature of aedeagus, distance between procoxae, depth of anterior sulcus on ventrites 3–5, among others ( Howden 1961, 1969, 1970), that sometimes overlap, therefore their phylogenetic relationships and generic definitions need further study. See Howden (1961) to separate species.

Isodacrys apicale Howden, 1961 View in CoL .

Isodacrys brevirostre Howden, 1961 View in CoL .

Isodacrys buchanani Howden, 1961 View in CoL .

Isodacrys crispum Howden, 1961 View in CoL .

Isodacrys geminatum Howden, 1961 View in CoL .

Isodacrys mexicanum Sharp, 1911 View in CoL .

Isodacrys minutum Sharp, 1911 View in CoL .

Isodacrys orizabae Sharp, 1911 View in CoL .

Isodacrys ovipennis (Schaeffer, 1908) View in CoL .

Isodacrys schwarzi Champion, 1911 View in CoL .

References

Anderson, R. S. (2002) Curculionidae. In: Arnett, R. H., Thomas, M. C., Skelley, P. E. & Frank, J. H. (Eds.), American Beetles. Vol. 2. Polyphaga: Scarabaeoidea though Curculionoidea. CRS Press, Boca Raton, Florida, pp. 722 - 815.

Champion, G. C. (1911) Tanymecus. In: Sharp, D. (Ed.), Biologia Centrali-Americana. Insecta, Coleoptera, Rhynchophora. Vol. 4. Part 3. Published for the editors by R. H. Porter, London, pp. 179.

Howden, A. T. (1961) A revision of the genus Isodacrys Sharp (Curculionidae, Tanymecini). The Coleopterists Bulletin, 15, 75 - 95.

Howden, A. T. (1969) The genus Pandeleteinus Champion with the description of a new species form Mexico (Curculionidae, Tanymecini). The Coleopterists Bulletin, 23, 76 - 83.

Howden, A. T. (1970) The Tanymecini of the West Indies (Coleoptera: Curculionidae). Contributions of the American Entomological Institute, 5, 1 - 73.

Morrone, J. J. (1999) The species of Entiminae (Coleoptera: Curculionidae) ranged in America south of the United States. Anales del Instituto de Biologia, Universidad Nacional Autonoma de Mexico, Serie Zoologia, 70, 99 - 168.

Sharp, D. (1911) Isodacrys. In: Sharp, D. (Ed.), Biologia Centrali-Americana. Insecta, Coleoptera, Rhynchophora. Vol. 4. Part 3. Published for the editors by R. H. Porter, London, pp. 175 - 177.

Figures

FIGURES 11–16. Species of Mexican Tanymecini. 11. Airosimus callifer, dorsal habitus. 12. A. callifer, lateral habitus. 13. Hadromeropsis brevicoma, dorsal habitus. 14. H. brevicoma, lateral habitus. 15. Isodacrys mexicanum, dorsal habitus. 16. I. mexicanum, lateral habitus.