Difference between revisions of "Rasnitsynaphis ennearticulata"
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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 ennearticulata Homan & Wegierek, 2011 sp. n. – Wikispecies link – ZooBank link – Pensoft Profile
Material
Holotype: PIN 3064/2109(2211); Baissa, Transbaikalia; Zaza Formation, bed 31.
Etymology
From the Greek term ennea for “nine” and from the Latin term articulum for “segment” in reference to the 9-segmented antennae.
Diagnosis
Antennae rather long; segment III three times as long as wide;segments IV–VIII of about the same length, rectangular, longer than wide. Media with three branches.
Description
Length of the body 2.1 (Fig. 1c). Width of head 0.43 (Fig. 1a). Lateral sutures join in the middle of epicranium in the four fifth of the head length. On the dorsal side of head capsule there are three diagonal strips, running from the middle part of epicranium to the frontolateral edge of head. The distance between ocelli (situated on the back of head) 0.27. Length of the apical segment of rostrum 0.18 (Fig 1e). Antennae 0.93 long, ca. 0.8 of thorax width (Figs 1b, d). Length of antennal segments: I 0.06; II 0.08; III 0.23; each of IV–VII 0.09; VIII 0.08; IX 0.07. Antennal segment III with about 17 rows of rhinaria, with at most 8 rhinaria arranged in one row. Segments IV–VIII at most with 7 rows of rhinaria. Tibia of fore legs 0.75 long, middle tibiae 0.83 to 0.86. Mesothoracic sternite 0.93 wide, 0.53 long. Fore wings about 3.8 long. The distance from the base of the wing to the end of pterostigma 2.8. Distance between bases of cubital veins CuA1 & CuA2 0.14. The length of M1+2 more or less equals the length of the common stem of M. The posterior part of abdomen strongly sclerotized (Fig. 1f).
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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