Biology:Crowsoniella
| Crowsoniella | |
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| Drawing of Crowsoniella relicta | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Coleoptera |
| Suborder: | Archostemata |
| Family: | Crowsoniellidae Iablokoff-Khnzorian, 1983 |
| Genus: | Crowsoniella Pace, 1975 |
| Species: | C. relicta
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| Binomial name | |
| Crowsoniella relicta Pace, 1975
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The Crowsoniellidae are a monotypic family of beetles, in the suborder Archostemata. So far, only a single species, Crowsoniella relicta, has been attributed to this family. It is known only from three male specimens collected in 1973 in Italy by Roberto Pace. In a degraded pasture, the beetles were found among the roots of a large hawthorn tree, in deep calcareous soil.[1] No other specimens have been found since.[2]
At only 1.5 mm (1⁄16 in) in length, this species is comparatively small for this suborder. They also feature several unusual morphological features such as missing alae, modified and reduced mouth parts, and smooth elytra (lacking window punctures characteristic of this suborder). Nothing is known about this species' biology.[3] Some authors have proposed a close relationship to Micromalthidae.[2]
References
- ↑ Pace, R. (1975). "An exceptional endogeous beetle: Crowsoniella relicta n. gen. n. sp. of Archostemata Tetraphaleridae from central Italy". Bollettino del Museo Civico di Storia Naturale di Verona 2: 445–458.
- ↑ 2.0 2.1 Li, Yan‐Da; Liu, Zhen‐Hua; Jarzembowski, Edmund A.; Yin, Zi‐Wei; Huang, Di‐Ying; Cai, Chen‐Yang (October 2019). "Early evolution of Cupedidae revealed by a mid‐Cretaceous reticulated beetle from Myanmar (Coleoptera: Archostemata)" (in en). Systematic Entomology 44 (4): 777–786. doi:10.1111/syen.12355. ISSN 0307-6970. https://onlinelibrary.wiley.com/doi/10.1111/syen.12355.
- ↑ Hörnschemeyer, Thomas (2009). "The species-level phylogeny of archostematan beetles-where do Micromalthus debilis and Crowsoniella relicta belong?". Systematic Entomology 34 (3): 533–558. doi:10.1111/j.1365-3113.2009.00476.x.
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