Falconius bogor Storozhenko, 2020

Storozhenko, S. Yu., 2020, NEW SPECIES OF THE PYGMY GRASSHOPPERS GENUS FALCONIUS BOLÍVAR, 1898 (ORTHOPTERA: TETRIGIDAE) FROM JAVA ISLAND, Far Eastern Entomologist 411, pp. 15-20 : 16-19

Falconius bogor Storozhenko , sp. n.

http://zoobank.org/NomenclaturalActs/ 90A53FA8-348C-4554-83C7-DB09045E8627

Figs 1–14

TYPE MATERIAL. Holotype – ♀, Indonesia: Java, 20–25 km SE of Bogor , env. of

Cemanda, Mt. Pangrango, 1000 m, 27.XI–7.XII 1999, leg. A. Gorochov ( ZIN). Paratypes:

2♂, the same data as holotype ( ZIN) .

DESCRIPTION. Female. Body medium-sized for genus. Antennae filiform, 15-segmented,

2.4 times as long as fore femur; middle segments (7–9th) 9.2–10.1 times as long as wide. Antennal sockets situated between lower margins of eyes. Fastigium of vertex 1.25 times as wide as one eye from above; median carina of fastigium distinct; transverse carinae disappearing near middle of fastigium and distinctly elevated between eyes; supraocular lobes vestigial. Eyes not protruding above pronotum in lateral view. Lateral ocelli large, situated between middle of eyes. Frontal ridge in lateral view broadly rounded between the antennal sockets and slightly excised below the median ocellus; in frontal view the ridge widened below the antennal sockets.

Width of frontal ridge near the base of the antennae 1.5 times narrower than width of the 1st

antennal segment. Pronotum in dorsal view with almost straight anterior margin; posterior process of pronotum narrow and very long, far surpassing apex of hind tarsi. Median carina of pronotum in profile low, distinctly sinuate in anterior part, straight in posterior part. Lateral carinae in prozona parallel-side; prozona subsquare, its width 1.05 times its length. Disc of pronotum distinctly depressed between prozona and humeral angles and concave behind apex of tegmina, with a pair of interhumeral carina; short additional keels situated near middle of hind femora absent; posterior process of pronotum almost smooth. Hind margin of lateral lobes of pronotum with tegminal (upper) sinus as deep as lower sinus; lower side of lateral lobes pronotum in dorsal view forming long transverse but slightly curved forwards spine.

Tegmina ovate, with acutely rounded apex; visible part of tegmen 2.9 times as long as wide;

width of visible part of tegmen 1.8 times width of mid femur. Hind wing almost reaching apex of posterior process of pronotum. Upper side of fore femora sinuate and serrate, lower side straight, serrated, without lobules. Upper and lower side of mid femora straight. Fore femur 5.4 times, and mid femur 6.2 times as long as wide. Upper side of hind femur serrate, lower side almost smooth. Hind femur 3.7 times as long as wide. Upper side of hind tibia without outer and inner teeth, lamelliform, finely serrate. First tarsal segment of hind leg compressed, 1.3 times as long as 3rd segment (without claws); dorsal side of 1st segment with 3 subequal and distinctly pointed pads; 3rd segment swollen. Epiproct triangular, with pointed apex. Subgenital plate elongated, 1.3 times as long as wide; posterior side of plate weakly triangular near middle. Cerci conical, with pointed apices, 1.8 times as long as wide near base. Valves of ovipositor short, dentate; length of upper valve 3.2 times its maximum width; length of lower valve 4.6 times its maximum width.

(holotype); 3, 4 – male (paratype). Scale bars = 5 mm.

General coloration of body brownish black with light brown marks. Apical segments of antennae black with pale rings near base of each segment; basal part of antennae brown. Disc of pronotum blackish brown; lower part of lateral lobes of pronotum and spine light brown.

Visible part of tegmina and anterior margin of hind wings blackish. Fore and mid femora black with small light marks. Fore and middle tibiae black with 3 pale rings. Hind femur blackish.

Hind tibia black, with 2 light brown rings. First tarsal segment of hind leg pale brown, 3rd

segment shiny brown. Tergites, sternites, epiproct and subgenital plate blackish brown. Cerci brown. Ovipositor blackish brown.

head, frontal view; 6 – head and anterior part of pronotum, dorsal view; 7 – fore leg, lateral view; 8 – hind tarsus, lateral view; 9 – the same, ventral view; 10 – apex of abdomen, ventral view; 11 – the same, lateral view; 12 – fore femur, lateral view; 13 – hind tarsus, lateral view;

14 – apex of abdomen, ventral view. Scale bars = 1 mm.

Male. Similar to female but smaller. Fastigium of vertex 1.2 times as wide as one eye from above. Antennae filiform, 14-segmented, 2.5 times as long as fore femur; middle segments (7–9th) 9.0–9.3 times as long as wide. Width of frontal ridge near the base of the antennae 2.0 times narrower than width of the 1st antennal segment. Visible part of tegmen

2.6–2.7 times as long as wide and 1.8–1.9 times as wide as mid femur. Hind wing almost reaching apex of posterior process of pronotum. Fore femur 6.0 times, mid femur 5.4–5.8

times, and hind femur 3.4–3.6 times as long as wide. First tarsal segment of hind leg compressed, 1.1 times as long as 3rd segment (without claws); dorsal side of 1st segment with

3 subequal and distinctly pointed pads; 3rd segment not swollen. Subgenital plate conical;

cerci 2.1 times as long as wide near base.

MEASUREMENTS (in mm). Length body: ♀ 12.1, ♂ 10.0–10.2; antenna: ♀ 6.5, ♂ 6.0;

pronotum: ♀ 20.6, ♂ 17.0–17.5; tegmen: ♀ 2.6, ♂ 2.1–2.3; fore femur: ♀ 2.7, ♂ 2.4; mid femur: ♀ 3.1, ♂ 2.6–2.7; hind femur: ♀ 6.6, ♂ 5.4–5.5; ovipositor 1.6 mm.

DIAGNOSIS. The new species is similar to Falconius clavatus Bolívar, 1898 from Mentawai Islands situated approximately 150 km off the western coast of Sumatra Island, but differs from latter by broad fastigium of vertex and sinuate upper side of fore femora (in F.

clavatus, fastigium as wide as one eye from above and the upper side of fore femora straight).

From other congeners F. bogor sp. n. is distinguished by the shape of spine situated on the lower side of lateral lobes of pronotum.

DISTRIBUTION. Indonesia: Java Island.

ETHYMOLOGY. The new species is named after the type locality. Treat as a noun in apposition.

Figures

Figs 1–4. Falconius bogor sp. n., body, lateral (1, 3) and dorsal (2, 4) view. 1, 2 – female

Figs 5–14. Falconius bogor sp. n. 5–11 – female (holotype), 12–14 – male (paratype). 5 –