Lipotactes (Prolipotactes) hamatus irisovi, Gorochov, 2021

Gorochov, A. V., 2021, Taxonomy of the katydids (Orthoptera: Tettigoniidae) from East Asia and adjacent islands. Communication 14, Far Eastern Entomologist 434, pp. 1-25 : 17-18

Lipotactes (Prolipotactes) hamatus irisovi Gorochov, sp. n.

http://zoobank.org/NomenclaturalActs/ 5AC3E93C-BFAE-440E-9314-316E6CB5AB6C

Figs 44, 45 , 73–76 , 87

MATERIAL. Holotype – ♂, Indonesia: central part of Sulawesi I., Sulawesi

Tengah Prov., Lore Lindu National Park, ~ 45 km SSE of Palu City, environs of

Tomado Vill. on Lindu Lake, ~ 1000 m, 13–17.II 2011, A. Gorochov. Paratypes: 6

males, 2 females, same data as for holotype .

DESCRIPTION. Male (holotype). Body slightly larger than in L. (P.) h. wartabone and L. (P.) h. lorelindu, i. e. medium-sized for this genus. Coloration uniformly yellowish (light greenish in living condition), but antennal flagellum light brown to brown, spines and spurs of legs as well as claws and distal lobes of tarsi light brown,

and ventral surface of hind tibia as well as distal half of cercus and its proximedial hook intermediate between yellowish and light brown ( Figs 73, 74 ). External structure of body similar to that of L. (P.) h. wartabone , but posterior edge of pronotum reaching distal third of tegminal mirror, left tegmen more similar to that of L. (P.)

lorelindu (i.e. its distal part narrower than in L. wartabone ) but with slightly wider apical area ( Fig. 87 ), lobules of anal plate located more near each other, cercus somewhat longer, and genital plate almost without thickenings in distal part as well as with more or less straight posteromedian edge between styles ( Fig. 44 ). Genitalia completely membranous.

Variations. Some males with poorly distinct traces of light brownish stripes on head dorsum; sometimes pronotum reaching apex of tegminal mirror, anal plate with slightly shorter lobules, and genital plate with barely convex posteromedian edge ( Fig. 45 ).

Female. General appearance as in males, but abdomen with four anterior tergites having more or less distinct light brown to brown spots on lateral parts ( Figs 75,

76); characters of external structure similar to those of L. (P.) h. lorelindu, but genital plate more transverse and with almost truncate apex (ovipositor practically indistinguishable from that of L. h. lorelindu).

MEASUREMENTS. Length (in mm). Body: ♂ 10–12, ♀ 11–12.5; pronotum: ♂

4.5–4.8, ♀ 3.2–3.3; tegminal parts visible behind pronotum, ♂ 1–1.5; hind femora:

♂ 11–12, ♀ 11.5–12; ovipositor 6–6.5.

COMPARISON. The new subspecies originates from the western part of Lore

Lindu National Park and was collected in another mountain range than L. (P.) h.

lorelindu; it differs from the latter subspecies in the male cercal apex normal, and in the male genitalia completely membranous. From L. (P.) h. wartabone , it is distinguished by some characters of the external structure listed above, and from L. (P.)

h. hamatus by the male anal plate having its lobules located more near each other,

by the male cercus longer and with thinner apical part, and by the male genital plate lacking distinct distal thickenings. From all these subspecies, the new one also differs in the hind femur distinctly more uniformly light.

ETYMOLOGY. This subspecies is named in memory of the big nature lover

Grigory Irisov who organized a trip to Lore Lindu National Park in 2011.

Subgenus Dialipotactes Gorochov , subgen. n.

http://zoobank.org/NomenclaturalActs/ 5BDBAB22-B9F3-4662-A0A6-D25CF52EEB68

Type species Lipotactes maculatus Hebard, 1922 ( Singapore) .

DIAGNOSIS. Rostrum of head almost lamellar (laterally compressed), unique for Lipotactes s. l. Male abdominal apex as in Lipotactes s. str., but epiproct with additional lateral lobules, paraproct with roundly angular projection at apex, and male cercus as in Prolipotactes (i.e. without dorsal tubercle at base of proximedial hook or near it; Fig. 46 ) or possibly with proximedial hook moved to subapical part of cercus.

INCLUDED SPECIES. Type species; possibly L. minutus Ingrisch, 1995 ( Thailand) .

COMPARISON. The new subgenus differs from all the congeners in the head rostrum lamellar, and from the nominotypical subgenus in the abdominal characters listed above. From the subgenus Mortoniellus , it is distinguished by the male cercus without a dorsal tubercle at the base of the proximedial hook or near it, and by the male genitalia completely membranous; and from Prolipotactes , by the male last tergite lacking a distinct posteromedian lobe, and by the male epiproct normal in the size (rather large and well visible) and with a pair of lateral lobules.

ETYMOLOGY. This subgeneric name consists of the Latinized Greek prefix

“dia-” (divided, separated) and the generic name Lipotactes .

Figures

Figs 41–65. Lipotactes spp., schematically: 41 – L. (Prolipotactes) hamatus wartabone

Figs 66–76. Lipotactes spp.: 66, 67 - L. (Prolipotactes) hamatus wartabone subsp. n.;

Figs 77–87. Lipotactes spp.: 77 – L. (Lipotactes) alienus lambir subsp. n.; 78 – L. (L.) a.