Thaumastodinae Champion, 1924

Yoshitomi, Hiroyuki, 2019, Review of the Asian Thaumastodinae (Coleoptera, Byrrhoidea, Limnichidae), with a phylogeny of the genera, European Journal of Taxonomy 583, pp. 1-45 : 4-6

publication ID	https://doi.org/10.5852/ejt.2019.583
publication LSID	lsid:zoobank.org:pub:4F834ADD-57E7-4CE3-B16A-127F1BE4AE14
DOI	https://doi.org/10.5281/zenodo.5386683
persistent identifier	https://treatment.plazi.org/id/03F9EF19-9F55-FFC7-FDE9-FD625E4B2FE4
treatment provided by	Plazi (2019-12-05 14:59:33, last updated 2024-12-20 16:37:20)
scientific name	Thaumastodinae Champion, 1924
status

Treatment

Subfamily Thaumastodinae Champion, 1924 View in CoL

Thaumastodinae Champion, 1924a: 25 View in CoL

(type genus: Thaumastodus Champion, 1924 [junior synonym of Pseudeucinetus Heller, 1921 View in CoL ]).

Thaumastodinae View in CoL – Spilman 1959: 111; 1972: 113 [key to genera]. — Skelley 2005: 119.

Diagnosis

Body elongate to oblong, slightly shining, closely covered with short suberect setae. Eyes ( Fig. 2 View Fig ) large, situated on dorso-lateral parts of head, separated narrowly on vertex. Antennae short to relatively short, 7- or 11-segmented, compactly articulated in terminal 6 antennomeres. Basal margin of elytra not crenulate. Tarsal formula 4-4-4 or 4-5-5. Hind legs long, capable of jumping; hind tibiae bearing spines. Sexual dimorphism distinct in fore tarsi (genus Pseudeucinetus ) or in sternite VII.

Key to genera of the subfamily Thaumastodinae View in CoL

1. Tarsal formula 4-5–5; legs long and slender; antennal insertions situated near eyes ( Fig. 2A View Fig ); metaventrite short, not covering metacoxa ( Fig. 3A View Fig ); in freshwater environments; Oriental Region................................................................................................. Acontosceles Champion, 1924 View in CoL

– Tarsal formula 4-4-4; legs long and stout; antennal insertions situated near mandibles ( Fig. 2C, E View Fig ); metaventrite projecting posteriorly, covering metacoxa ( Fig. 3B View Fig ); in both fresh- and saltwater environments...................................................................................................................................... 2

2. Frons distinctly projecting anteriorly, narrow ( Fig. 2 View Fig E–F); male fore tarsi enlarged ( Fig. 3E View Fig ); in freshwater environments; Oriental Region............................................ Pseudeucinetus Heller, 1921 View in CoL

– Frons gently projecting anteriorly, wide ( Fig. 2 View Fig C–D); male fore tarsi normal; on rocky seashores ... ........................................................................................................................................................... 3

3. Antennae 7-segmented; antennal groove on gena absent; Neotropical Region................................... ..................................................................................................................... Martinius Spilman, 1959 View in CoL

– Antennae 11-segmented; antennal groove on gena present; Neotropical and Oriental Regions......... ......................................................................................................................... Mexico Spilman, 1972 View in CoL

References

Champion G. C. 1924 a. On a new subfamily of clavicorn Coleoptera. Entomologist's Monthly Magazine 60: 25 - 29.

Heller K. M. 1921. Philippinische Melandryidae. Entomologische Blatter 17 (10 - 12): 155 - 157.

Sato M. 1994. Note on the genus Pseudeucinetus Heller and its new relative (Coleoptera, Limnichidae). Special Bulletin of the Essa Entomological Society 2: 173 - 177.

Skelley P. E. 2005. A new species of ' jumping shore beetle' in the genus Mexico Spilman from the Bahamas (Coleoptera: Limnichidae: Thaumastodinae). Insecta Mundi 19 (1 - 2): 119 - 122.

Spilman T. J. 1959. A study of the Thaumastodinae, with one new genus and two new species (Limnichidae). Coleopterist's Bulletin 13: 111 - 122.

Spilman T. J. 1972. A new genus and species of jumping shore beetle from Mexico. Pan-Pacific Entomologist 48: 108 - 115.

Yoshitomi H. & Sato M. 2005. A new species of the genus Acontosceles (Coleoptera, Limnichidae) from Laos, with the description of the genitalia of A. yorioi M. Sato. Elytra, Tokyo 33: 34 - 41.

Figures

Fig. 2. Head in frontal (A, C, E) and lateral (B, D, F) views. A, D. Acontosceles chujoi Yoshitomi & Satô, 2005. B, E. Mexico masamii (Satô, 1994). C, F. Pseudeucinetus zygops Heller, 1921.

Fig. 3. Metacoxal plates (A–B), hind tibiae (C–D) and male protarsus (E). A, C. Acontosceles chujoi Yoshitomi & Satô, 2005. B, D. Mexico taiwanus (Satô, 1994). E. Pseudeucinetus zygops Heller, 1921.