Phryganogryllacris flavistria, Pang & Zhang & Bian, 2023
|
publication ID |
https://doi.org/ 10.11646/zootaxa.5357.1.5 |
|
publication LSID |
lsid:zoobank.org:pub:36CCD98E-02D7-4470-9733-34FD8ABCE80E |
|
DOI |
https://doi.org/10.5281/zenodo.10012623 |
|
persistent identifier |
https://treatment.plazi.org/id/039A8725-4A14-FFCF-7ABD-B5EF4D58FE3B |
|
treatment provided by |
Plazi |
|
scientific name |
Phryganogryllacris flavistria |
| status |
sp. nov. |
Phryganogryllacris flavistria sp. nov.
ĦḢHDzdz
Figures 5–6 View FIGURE 5 View FIGURE 6
Description. Male. Body large and slender. Fastigium verticis narrower, about 1.5 times as broad as scape. Face with impressed dots ( Fig. 5A View FIGURE 5 ). Ocelli distinct, median ocellus slightly larger than lateral ocelli. Fastigium frontis separated from fastigium verticis by a fine suture.
Pronotum with anterior margin arched, posterior margin nearly straight ( Fig. 5B View FIGURE 5 ); lateral lobes longer than high, anterior angle widely rounded, posterior angle rounded angular, humeral sinus indicated ( Fig. 5C View FIGURE 5 ).
Fore coxae with 1 spine. Fore and middle femora unarmed on ventral surfaces, hind femora with 9–11 internal and 4–6 external spines on ventral surface. Fore and middle tibiae with 5 pairs of ventral spurs, including 1 pair of apical ones, middle tibiae with 1 internal spine on dorsal surface; hind tibiae with 5 internal and 4–5 external spines on dorsal surface, apices with 1 pair of dorsal spurs, 1 pair of subapical ventral spurs and 2 pairs of ventral spurs.
Wings developed, far surpassing the apex of abdomen. Second and third abdominal tergites with 2 rows of stridulatory pegs ( Fig. 5D View FIGURE 5 ). Eighth abdominal tergite prolonged backward. Posterior margin of ninth abdominal tergite straight, the lateral margin prolonged into a spine which directing outwards ( Fig. 5E, G View FIGURE 5 ). Tenth abdominal tergite transverse with 1 pair of small cylindrical processes in the middle ( Fig. 5E View FIGURE 5 ). Cerci long. Subgenital plate wide in basal area, the lateral margin convex, posterior margin U-shaped concave with rounded lateral lobes ( Fig. 5I View FIGURE 5 ). Styli depressed inserted at lateral angles of wide basal area and only little surpassing tip of medial process ( Fig. 5I View FIGURE 5 ).
Female. Seventh abdominal sternite broader than other sternites, on both sides at latero-apical angle swollen, ventral surface with a pair of copulatory depressions. Membranous zone between subgenital plate preceding sternite with fine transverse folds ( Fig. 6E–F View FIGURE 6 ). Subgenital plate with convex lateral margins; posterior margin triangularly concave, the lateral lobes rounded on both sides ( Fig. 6E–F View FIGURE 6 ). Ovipositor moderately long, regularly upcurved and with gradually approaching margins; apices narrow subobtuse ( Fig. 6G View FIGURE 6 ).
Coloration. Body yellow-brown. External margins of antennal cavities black, antennae black ( Figs. 5C View FIGURE 5 , 6C View FIGURE 6 ). Dorsal surface of head with interrupted semicircular black transverse band, behind area black (sometimes yellow). Pronotum with narrow black margins, disc with longitudinal black band surrounding a tandem yellow spot and a transverse yellow spot ( Figs. 5B View FIGURE 5 , 6B View FIGURE 6 ). Tegmina semi-transparent with black veins. External surfaces of all femora with blackish spots. Eighth and ninth abdominal tergites ranging from brown to black.Anterior margin of abdominal tergites blackish. Ovipositor blackish brown.
Measurements (mm). Male: BL 23.00–23.22, PL 5.58–5.89, TL 32.50–34.71, HFL 12.75–13.94. Female: BL 28.39–31.00, PL 6.74–7.01, TL 36.07– 36.15, HFL 15.11–15.12, OvL 19.02–22.16.
Material examined. Holotype: male, Nayong , Guizhou, July 22, 2023, coll. by Yao Zhang ; Paratypes: 2 males, Nayong , Guizhou, July 18, 2023, coll. by Yao Zhang ; 1 male and 1 female, Nayong , Guizhou, July 21, 2023, coll. by Yao Zhang ; 1 male and 2 females, Nayong , Guizhou, July 25, 2023, coll. by Yao Zhang ; 1 female, Nayong , Guizhou, July 28, 2023, coll. by Yao Zhang .
Distribution. Guizhou (Nayong).
Discussion. The new species differs from Phryganogryllacris longicerca Li, Liu & Li, 2014 (Chinese name: K MHDzdz, Fig. 7 View FIGURE 7 ) by the color pattern of pronotum ( Figs. 5B View FIGURE 5 , 6B View FIGURE 6 ), the posterior concavity of male subgenital plate nearly U-shaped, wider and deeper ( Fig. 5I View FIGURE 5 ).
Etymology. Name is derived from Latin flav and stri, referring to pronotum with longitudinal yellow stripe along the midline ( Figs. 5B View FIGURE 5 , 6B View FIGURE 6 ).
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.