Caryanda zheminzhengi Storozhenko, 2021

Storozhenko, S. Yu., 2021, A new species of the genus Caryanda Stål, 1878 (Orthoptera: Acrididae) from Thailand, Far Eastern Entomologist 442, pp. 1-6 : 2-5

Caryanda zheminzhengi Storozhenko , sp. n.

http://zoobank.org/NomenclaturalActs/ 5DD04AD9-64B8-4EA6-A400-0C2DEDCE21C5

Figs 1–5

MATERIAL. Holotype: ♂, Thailand: prov. Nakon Savan , 12 km S Mae Wong,

15°46ʹ5ʹʹ N, 99°32ʹ0ʹʹ E, 8–9.VIII 2009, coll. V . Bezborodov ( ZISP). Paratype: ♀ ,

the same label as holotype ( ZISP) .

DESCRIPTION. Male. Body slender, medium-sized for the genus. Head distinctly shorter than pronotum. Frons and genae rugosely punctured; vertex and occiput smooth. Face in profile reclinate. Frontal ridge distinct almost to clypeal margin,

deeply sulcate, slightly narrowed near median ocellus. Vertex between eyes as broad as maximal width of frontal ridge. Fastigium of vertex short; foveolae absent. Eyes large, oval; vertical diameter of eye 3.4 times as long as subocular furrow. Antennae

23-segmented, reaching the base of mid femora; mid segments of antennae 2.8–3.0

times as long as width. Pronotum punctured, crossed by three transverse furrows;

median and lateral carinae vestigial; prozona 2.25 times as long as metazona; anterior margin of prozona not excised near median carina; posterior margin of metazona broadly rounded. Prosternal spine straight, conical, with pointed apex. Mesosternal lobes square, mesosternal interspace narrow, 3.0 times as long as wide; metasternal lobes fused. Tegmina lateral, not touching each other in a resting position, reaching the base of 2nd abdominal tergite, 2.1 times as long as wide; apex of tegmen rounded. Hind wings absent. Hind femora slender, 4.5 times as long as their maximal width; dorso-median carina smooth; ventral genicular lobes with spine. Hind tibiae with 9 outer and 9 inner dorsal spines; outer apical dorsal spine very small. Hind tarsi short, not longer than the half of hind tibiae; third segment (without claws) as long as basitarsus; arolium large, surpassing apex of claws. Tympanum large, oval.

10th abdominal tergite without furculae on posterior margin; supra-anal plate trapezoid, as long as its width near base, with triangular apex; its surface slightly concave near the base. Cerci overreaching the supra-anal plate, conical, with pointed apex, 3.0 times as long as their width near base. Subgenital plate short.

– the same, dorsal view; 3 – genitalia, dorsal view; 4 – the same, lateral view; 5 – female

(paratype), body, lateral view.

Epiphallus bridge-shaped; bridge broad and completely divided; ancorae relati-

vely short, triangular; anterior projections as long as ancorae; posterior projections broadly rounded; lophi of epiphallus great, extending, with enlarged outer and distinct inner lophi; oval sclerites elongated. Cingulum sclerotised, consisting of almost straight apodemes, zygoma, and narrow rami; zygoma straight apically, covering the arch of cingulum. Valves of cingulum divided, parallel-side, apically with rounded apex. Apical valves of penis lobe-like with rounded apex, almost as long as cingular valves; basal and apical penis valves connected by a strongly curved, unbroken flexure.

Body yellowish green with black marks ( Figs 1, 2 ). Dorsal side of head yellowish green; genae yellow with black vertical stripe; postocular stripe black; face yellow with numerous small brown dots; mandibles yellow with brown apex. Basal half of antennae light brown, apical part dark brown. Disc of pronotum yellowish green;

lateral lobes black with two yellow spots. Tegmina black with light stripe along posterior margin. Fore and mid femora yellow; for and mid tibia bluish. Hind femur yellowish green with reddish apical part; dorsal and ventral genicular lobes black.

Hind tibia red with black and yellow base and blackish apex; dorsal spines with black apex. Hind tarsi bluish. Abdomen dorsally light brown; 9–10th abdominal tergites and supra-anal plate brownish; cerci brown with blackish apex; lateral side of 1st–5th tergites with black stripe. Abdomen ventrally yellow; sternal plate with black margins; subgenital plate yellow.

Female. Similar to male, but larger. Head distinctly shorter than pronotum. Frons rugosely punctured; genae, vertex and occiput smooth. Face in profile reclinate.

Frontal ridge distinct almost to clypeal margin, deeply sulcate, slightly narrowed near median ocellus. Vertex between eyes almost as broad as maximal width of frontal ridge. Fastigium of vertex short; foveolae absent. Eyes large, oval; vertical diameter of eye 2.7 times as long as subocular furrow. Antennae 23-segmented, reaching the base of fore femora; mid segments of antennae 3.0 times as long as width. Pronotum as in male but prozona 2.4 times as long as metazona and posterior margin of metazona almost straight. Prosternal spine straight, conical, with pointed apex.

Mesosternal lobes 1.1 times as wide as long; mesosternal interspace 2.5 times as long as wide; metasternal lobes fused. Tegmina lateral, reaching the base of 2nd

abdominal tergite; 2.0 times as long as wide. Hind wings absent. Hind femora as in male, 4.5 times as long as their maximal width. Hind tibiae with 9 outer and 10 inner dorsal spines; outher apical dorsal spine very small. Hind not longer than the half of hind tibiae; third segment (without claws) as long as basitarsus; arolium large,

surpassing apex of claws. Tympanum large, oval. 10th abdominal tergite deeply excised; supra-anal plate triangular, almost as long as its width near base. Cerci reaching apex of supra-anal plate, conical, with pointed apex, 2.7 times as long as their width near base. Subgenital plate elongated, 1.4 times as long as wide, with triangular posterior margin. Ovipositor short; dorsal valves as long as lower ones,

dentate; ventral valves slightly curved and also dentate.

Body colored as in male, but genae below eyes with narrow black stripe,

dorsally abdominal tergites and supra-anal plate greenish yellow, cerci light brown with blackish apex, abdomen ventrally yellowish green, and ovipositor light brown with black spines.

MEASUREMENTS (length in mm). Body: male 192.5, female 27.0; antenna:

male 8.6, female 9.70; pronotum: male 3.9, female 5.2; tegmen: male 3.35, female

4.2; hind femur: male 11.3, female 14.5; ovipositor 1.9.

DIAGNOSIS. The new species is most similar to Caryanda beybienkoi Storozhenko, 2005 from Thailand ( Fig. 6 ) but easy recognizable from latter by short cingular valves of penis and color of hind tibia and tarsi (in C. beybienkoi , the cingular valves of penis distinctly longer than apical penis valves, basal third of hind tibia blue, apical part of tibia and basitarsus red). From C. tamdaoensis

Storozhenko, 1992 and C. azurea Gorochov et Storozhenko, 1994 (both from

Vietnam), C. zheminzhengi sp. n. differs in the color of hind tibia and the shape of cingular valves and apical penis valves (in the latter Vietnamese species, hind tibia are blue and both valves are long and narrow). The new species is also similar to C.

spuria Stål, 1861 from Java and C. neoelegans Otte, 1995 from Vietnam and South

China in the red hind tibia, but differs from the former in the lobe-like apical penis valves (in C. spuria , valves are long and with parallel sides) and from the latter in the rounded apex of valves of cingulum (in C. neoelegans , valves are pointed apically).

DISTRIBUTION. Thailand: province Nakon Savan.

ETYMOLOGY. New species is named in memory of professor Zhe-Min ZHENG

(1932–2021), a founder of Chinese acridology.

Figures

Figs 1–5. Caryanda zheminzhengi sp. n. 1–4 – male (holotype): 1 – body, lateral view; 2

Fig. 6. Caryanda beybienkoi Storozhenko, 2005 (paratype, male from Thailand: prov. Phetchaburi, environs of National Park Kaeng Krachan, 12°45ʹ0ʹʹ N, 99°36ʹ0ʹʹ E).