Difference between revisions of "Rasnitsynaphis quadrata"
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Latest revision as of 11:53, 24 September 2011
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Ordo: Hemiptera
Familia: Rasnitsynaphididae
Genus: Rasnitsynaphis
Name
Rasnitsynaphis quadrata Homan & Wegierek, 2011 sp. n. – Wikispecies link – ZooBank link – Pensoft Profile
Material
Holotype: 3064/2279; Baissa, Transbaikalia; Zaza Formation, bed 31.
Etymology
From the Latin term quadratus for “square” in reference to the square shape of antennal segments IV–VII.
Diagnosis
Antennae quite short; segment III two times as long as wide; segments IV–VII of the same length, square, as long as wide. Media with two branches.
Description
Length of the body 2.0 (Fig. 3b). Length of head 0.28. Head with lateral sutures. Length of the apical segment of rostrum 0.14 (Fig. 3c). Antennae 0.71 long, about 1/2 of thorax height (Fig. 3a, b). Length of antennal segments: I 0.06; II 0.07; III 0.16; each of IV–IX 0.06. Antennal segment III with about 9 rows of rhinaria, with at most 8 rhinaria arranged in one row. Segments IV–VIII at most with 4 rows of rhinaria. Femur of middle legs 0.54 long, tibia 0.73. Hind femur 0.57 long. Mesothoracic sternite 0.49 long. The distance from the base of the wing to the end of pterostigma 2.7. The distance between bases of cubital veins CuA1 & CuA2 0.11. The posterior part of abdomen weakly sclerotized.
Original Description
- Homan, A; Wegierek, P; 2011: A new family of aphids (Hemiptera, Sternorrhyncha) from the Lower Cretaceous of Baissa, Transbaikalia ZooKeys, 130: 167-174. doi
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