Strongylium

Strongylium tenuicolle, copyright Jacy Lucier.

Belongs within: Stenochiinae.

Strongylium is a pantropical genus of darkling beetles including over 1000 species. Many of these species remain undescribed (Matthews & Bouchard 2008).

Characters (from Matthews & Bouchard 2008): Elongate-oblong, parallel-sided, convex. Edge of clypeus straight in middle. Eyes large, separated by distance much less than one eye diameter. Clypeolabral membrane widely exposed, with lateral edges attached to corners of clypeus. Antennae reaching well beyond base of prothorax, segments elongate and subparallel, segments 7–11 a little wider and bearing numerous scattered stellate sensoria. Maxilla with single lacinial uncus, palpi with apical segment securiform. Pronotum subquadrate with lateral margins not at all prominent. Prosternum less than twice as long before coxae as postcoxal bridge. Prosternal process slightly wider between procoxae. Elytral striation complete, epipleura complete to apex. Wings developed, venation complete but with CuA1 partly anastomosed with MP3+4. Metaventrite along midline longer than first abdominal ventrite. Legs slender, tarsomeres elongate, cylindrical, soled with dense dark bristles, no tomentum on apices of tibiae. Apical tarsomere of hind legs shorter than length of first tarsal segment. Abdomen with defensive reservoirs small, not reaching anterior edge of abdominal ventrite 2, pocket-like with wide openings, with common volume. Aedeagus with basal piece a little longer than apical, with alae in form of extensions of apical piece.

<==Strongylium Kirby 1819MB08 (see below for synonymy)
|--*S. chalconotum Kirby 1819MB08
|--S. auratum (Laporte 1840)B14
|--S. australe Mäklin 1864M86
|--S. brittoni Kaszab 1977MB08
|--S. campanulatum Kaszab 1977 [=S. macleayi Carter 1914 non Pascoe 1864, S. robustum Kaszab 1977]MB08
|--S. carteri Kaszab 1977MB08
|--S. corrugatum Carter 1915MB08
|--S. costatissimum Kaszab 1977MB08
|--S. cylindripenne Carter 1915MB08
|--S. delauneyi Fleutiaux & Sallé 1890FS90
|--S. demarzi Kulzer 1966MB08
|--S. doddi (Carter 1918) [=Tarpela doddi]MB08
|--S. finschi Gebien 1920MB08
|--S. fuscovestitum Carter 1914MB08
|--S. gebieni (Kulzer 1966) [=Bionesus gebieni]MB08
|--S. inaequale Fleutiaux & Sallé 1890FS90
|--S. koala Kaszab 1977MB08
|--S. macleayi Pascoe 1864 [incl. Ebenolus banksi Carter 1924, S. continentale Kaszab 1977]MB08
|--S. mastersi Macleay 1872 [incl. S. longicrurum Carter 1918, S. longipes Carter 1915 (preoc.)]MB08
|--S. matthewsi Kaszab 1977MB08
|--S. minor (Carter 1924) [=Ebenolus minor]MB08
|--S. neboissi Kulzer 1966MB08
|--S. neboissianum Kaszab 1977 [=Bionesus neboissi Kulzer 1966 non S. neboissi Kulzer 1966]MB08
|--S. okei Kulzer 1966 [incl. S. pseudokei Kaszab 1977]MB08
|--S. punctithorax Carter 1915MB08
|--S. queenslandicum Kaszab 1977MB08
|--S. reticulatum Mäklin 1867MB08
|--S. rufescens (Kulzer 1966) [=Bionesus rufescens]MB08
|--S. ruficolle Macleay 1872MB08
|--S. rugosicolle (Carter 1915) [=*Notostrongylium rugosicolle; incl. S. horridum Gebien 1920]MB08
|--S. sculptipunctatum Gebien 1920MB08
|--S. tenuicolleAT02
`--S. vertebrale Carter 1924 [incl. S. unicolor Kulzer 1966]MB08

Strongylium Kirby 1819 non Ditmar 1809 (ICBN)MB08 [incl. Anomaearthrum Mklin 1864AT02, Doichopterum Murray 1862AT02, Eustrongylium Kolbe 1894AT02, Notostrongylium Carter 1915MB08, Reminius Casey 1924AT02, Stenochia Kirby 1818AT02, Zurecheria Reitter 1908AT02]

*Type species of generic name indicated

References

[AT02] Aalbu, R. L., C. A. Triplehorn, J. M. Campbell, K. W. Brown, R. E. Somerby & D. B. Thomas. 2002. Tenebrionidae Latreille 1802. In: Arnett, R. H., Jr, M. C. Thomas, P. E. Skelley & J. H. Frank (eds) American Beetles vol. 2. Polyphaga: Scarabaeoidea through Curculionoidea pp. 463–509. CRC Press.

[B14] Bouchard, P. (ed.) 2014. The Book of Beetles: A lifesize guide to six hundred of nature’s gems. Ivy Press: Lewes (United Kingdom).

[FS90] Fleutiaux, E., & A. Sallé. 1890. Liste des coléoptères de la Guadeloupe et descriptions d’espèces nouvelles. Annales de la Société Entomologique de France, 6e série 9: 351–484.

[M86] Masters, G. 1886. Catalogue of the described Coleoptera of Australia. Part IV. Proceedings of the Linnean Society of New South Wales, series 2, 1 (2): 259–380.

[MB08] Matthews, E. G., & P. Bouchard. 2008. Tenebrionid Beetles of Australia: Descriptions of tribes, keys to genera, catalogue of species. Australian Biological Resources Study: Canberra.

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