Parvifuzia peregrina
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Ordo: Blattodea
Familia: Fuziidae
Genus: Parvifuzia
Name
Parvifuzia peregrina Wei, Liang & Ren sp. n. – Wikispecies link – ZooBank link – Pensoft Profile
Diagnosis
Apex of wing almost reaching the end of the abdomen, forewing venation with 30–32 veins at margin.
Comments
Parvifuzia peregrina sp. n. is similar to Parvifuzia marsa Guo & Ren, 2011 in the following aspects: small-sized; apex of cerci strongly curved inward and rounded in shape, with a narrow gap at the center; wing venation simple; forewing R strongly curved like waves, CuA almost straight, then curved to posterior wing margin, anal area wide.
However, Parvifuzia peregrina sp. n. can be easily differentiated from the other two previously described species: apex of wing almost reaching the end of the abdomen in Parvifuzia peregrina sp. n. vs. apex of wing just reaching the middle of the 8th abdominal segment; forewing length is longer (forewing length 8.5–8.8 mm in Parvifuzia peregrina sp. n., vs. forewing length 6.3–6.4 mm); and forewing venation with 30–32 veins at margin in Parvifuzia peregrina sp. n., vs. forewing venation with 25–27 veins at margin.
Description
Small-sized, body length about 10.4–10.6 mm (with head), width 2.8–3.1 mm; head small, significantly elongated (length/width= 1.4–1.6 mm/1.3–1.4 mm), antennal socket conspicuous at sides, mouthparts unclear; pronotum length 1.6–1.9 mm, width 2.3–2.7 mm, elliptical, as wide as the body; abdomen 6–7 segments visible, terminal sternum rounded; long cerci has 14 segments and apex of cerci strongly curved inward and rounded in shape, forming a narrow gap at center (Fig. 3A), segments of cerci joined together after the 8th segment.
Forewings (Figs 1, 2, 3B): length range about 8.5–8.8 mm, width range about 2.6–2.9 mm; narrow, without coloration, with intercalaries and wing venation simple, with 30–32 veins at margin; costal area wide (1/3 width of the wing); Sc simple, curved upward, longer than clavus; R strongly curved like waves and with 9–14 branches, reaching the anterior wing margin; M slightly curved and with 5–7 branches, most posterior branch of M reaching wing apex; CuA almost straight to posterior wing margin and with 5–8 branches; CuP strongly curved and simple; clavus short, less than a third of the wing’s length; A simple, arc bending and with about 4 veins.
Hind wings: length about 6.5–7.1 mm, width of remigium 2.8–3.5 mm; with intercalaries and without pterostigma; with about 22 veins of remigium; Sc simple, sometimes unclear; R terminating to wing apex, differentiated into darkened R1 with 2–3 branches and Rs with 7–9 branches; M almost straight to posterior wing margin, with 3–5 branches; CuA with about 7 branches.
Legs: length of fore femora 1.16–1.49 mm and tibiae 1.16–1.22 mm, length of mid femora 1.89–1.93 mm and tibiae 1.47–1.56 mm, length of hind femora 2.12–2.19 mm and tibiae 2.59–3.45 mm; legs gradually get longer from the front to the hind legs; mid and hind leg with spines on the tibiae.
Materials
Holotype, A completely preserved male specimen, CNU-BLA-NN-2011055. Paratypes, CNU-BLA-NN-2011056, CNU-BLA-NN-2011057.
Type locality and horizon
Jiulongshan Formation; Daohugou Village, Wuhua Township, Ningcheng County, Inner Mongolia, China; Middle Jurassic.
Etymology
The specific name is derived from the Latin word “peregrinus”, (meaning “strange”), for this new species is special for specific characters.
Original Description
- Wei, D; Liang, J; Ren, D; 2012: A new species of Fuziidae (Insecta, Blattida) from the Inner Mongolia, China ZooKeys, 217: 53-61. doi
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