Elektrithone
Elektrithone Temporal range:
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Holotype forewing, Baltic amber | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Arthropoda |
Class: | Insecta |
Order: | Neuroptera |
Family: | Ithonidae |
Genus: | †Elektrithone Makarkin, Wedmann, & Weiterschan, 2014 |
Species: | †E. expectata
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Binomial name | |
†Elektrithone expectata Makarkin, Wedmann, & Weiterschan, 2014
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Elektrithone is an
History and classification
Elektrithone expectata is known only from the one fossil, the
Using the Comstock–Needham system for describing insect venation patterns, the Elektrithone CuP (cubitus posterior, the "rear elbow") venation is similar to members of the neuropteran families Brongniartiellidae and Osmylopsychopidae, in that the CuP in both families is short and not comb like. However, both families have wings with an anal area that has at least one or two highly branched anal veins, a character that is not seen in Elektrithone.[1] The broad costal area of Elektrithone along with the strongly curved humeral veinlet, comb like MP (medial posterior) and CuA (cubitus anterior) veins and the series structure of the radial crossveins are all features seen in Ithonidae. The features found in Elektrithone are a mosaic of characters found in several genera of Ithonids.[1]
Description
The holotype is composed of a single partially complete forewing which is missing a section of the central wing area. The preserved section of the forewing is approximately 19 mm (0.75 in) long and 10 mm (0.39 in) wide, with an estimated length, if whole, of 30 mm (1.2 in). The wing has a costal space that is wide, widening towards the wing base and a number of trichosors are present along the leading edge of the wing.[1] The ScA (subcostal anterior) veinlet is well developed, thick, and connecting to the ScP (subcostal posterior) vein before the humeral veinlet. The subcostal veinlets mostly are only shallowly forked, and the radial crossveins being grouped into a pair of gradate series. The wing does not show any evidence that nygma were present in life.[1]
References
- ^ PMID 24870683.
- ^ Henderickx, H.; Tafforeau, P.; Soriano, C (2012). "Phase-contrast synchrotron microtomography reveals the morphology of a partially visible new Pseudogarypus in Baltic amber (Pseudoscorpiones: Pseudogarypidae)". Palaeontologia Electronica. 15 (2, 17A, 11p): 1–11.