Cranae lolobatensis Storozhenko, 2020

Storozhenko, S. Yu., 2020, New species of the genera Cranae and Lucretilis (Orthoptera: Acrididae) from Indonesia with taxonomic notes on the tribe Cranaeini, Zoosystematica Rossica (China) 29 (2), pp. 267-277 : 268-271

Cranae lolobatensis Storozhenko , sp. nov.

( Figs 1–8)

Holotype. Male, Indonesia, Maluku Utara Prov., Halmahera Island, env. of Subaim Vill. to S from Lolobata Vill. (not far from it), near coast of Wasile Bay , 27.I–1.II 2011, coll. A. Gorochov ( ZIN).

Paratype. Female, same data as for holotype ( ZIN) .

Description. Male (holotype). Body medium-sized for this genus; integument shiny ( Figs 1, 2). Head thick, rounded, as long as pronotum.

S.Yu. Storozhenko. New species of the genera Cranae and Lucretilis

Face in profile slightly reclinate. Frontal ridge distinct only above median ocellus, weakly sulcate, with margins obtuse and nearly parallel ( Fig. 3). Vertex between eyes 1.4 times as wide as frontal ridge between antennae. Fastigium of vertex slightly marked off from rest of vertex, more or less widely triangular from above, with truncated apex not reaching tip of 1st antennal segment, and without foveolae. Eyes ovoid-hemispherical; vertical diameter of eye 2.0 times as long as subocular furrow. Antennae filiform, 24-segmented, reaching basal third of hind femora; mid segments of antennae about 4 times as long as width. Pronotum about as long and as wide as head, crossed by four transverse furrows; prozona 2.5 times as long as metazona; anterior margin of prozona not excised; posterior margin of metazona weakly rounded; median and lateral carinae absent. Lateral lobe of pronotum about as long as high. Prosternal process strong, vertical, laterally compressed, in

S.Yu. Storozhenko. New species of the genera Cranae and Lucretilis frontal view slightly widened distally and with truncated apex. Mesosternal lobes wider than long, with inner margins convex; mesosternal interspace trapezoid; metasternal lobes fused. Tegmina short, 2.1 times as long as wide, not touching each other in resting position, reaching posteri- or margin of third abdominal tergite, with apex weakly excised. Hind wings slightly shorter than tegmina. Hind femora moderately stout, 3.8 times as long as their maximal width; dorsomedian carina slightly crenulate, terminating in a small tooth; ventral genicular lobes truncate. Hind tibiae with 5 outer and 7 inner dorsal spines; outer apical dorsal spine present. Hind tarsi slightly longer than half of hind tibiae; third segment (without claws) short, 0.5 times as long as two others together; arolium wide and long, surpassing apex of claws. Tympanum large, oval. Tenth abdominal tergite triangularly excised with a pair of well-separated small furculae on posterior margin. Supra-anal plate roughly triangular, as long as its width near base, with tranverse ridges near middle and longitudinal depression in basal half of plate as well as with smooth apex. Cerci slender, 4.0 times as long as their width near base, slightly up- and incurved, and with pointed apex reaching tip of subgenital plate. Subgenital plate subconical, short and with obtuse apex.

Male genitalia ( Figs 4, 5). Epiphallus not divided into two symmetric halves; anterior projections large; ancorae elongate and lamellate, with apices rounded; posterior projections short, with apices rounded; bridge narrow, with anterior and posterior margins nearly straight; outer lophi of epiphallus large, projecting ecto-dorsally and separated distinctly from posterior projections; inner lophi shorter and also projecting ecto-dorsally; oval sclerites large. Ectophallic membrane with sclerotised plate near the middle. Cingulum sclerotised, consisting of broad apodemes, zygoma and rami; zygoma apically with deep excision, not covering arch of cingulum; valves of cingulum short, divided, apically pointed. Apical valves of penis with pointed apex, as long as cingular valves; basal and apical penis valves touch each other but disconnected; flexure absent.

Body (after alcohol preservation) light brown with black marks ( Figs 1, 2). Dorsal side of head light brown with black median stripe almost reaching fastigium of vertex; black postocular stripe wide; genae and face light brown; apical part of mandibles black; antennae brown. Pronotum completely light brown, without any black marks. Tegmina yellowish with black stripe along costal and apical margins. Hind wings black. Fore and mid legs light brown. Hind femur light brown, without any dark marks; dorsal genicular lobes blackish brown; ventral genicular lobes light brown. Hind tibia light brown; dorsal spines with black apex. Abdomen dorsally light brown; tenth tergite with black furculae; supra-anal plate light brown with black transverse ridges; cercus light brown. Body ventrally (including subgenital plate) light brown.

Female ( Figs 6–8). Similar to male. Head as in male, but eyes hemispherical and vertical diameter of eye 1.5 times as long as subocular furrow. Antennae 25-segmented, reaching basal third of hind femora; mid segments of antennae 4.0–4.3 times as long as wide. Pronotum as in male, but prozona 2.6 times as long as metazona. Prosternal process, mesosternal and metasternal lobes as in male; mesosternal interspace 1.2 times as long as wide. Tegmina as in male, but 2.8 times as long as wide, almost reaching posterior margin of fourth abdominal tergite. Hind wings vestigial. Hind femora 4.1 times as long as their maximal width; dorsomedian carina and ventral genicular lobes as in male. Hind tibiae with five outer and seven inner dorsal spines; outer apical dorsal spine present. Hind tarsi and tympanum as in male. Posterior margin of tenth abdominal tergite angularly excised. Supra-anal plate tongue-like, 1.75 times as long as its width near base; median longitudinal sulcus absent. Cerci conical, slightly outcurved, 2.8 times as long as their width near base, almost reaching apex of supra-anal plate. Subgenital plate 1.4 times as long as wide, deeply sulcated between a pair of longitudinal keels; hind margin tridentate. Basivalvular plates elongated. Ovipositor short; upper margin of dorsal valves and lower margin of ventral valves scarcely serrated; apices of both valves not definitely hooked.

Body (after alcohol preservation) generally coloured as in male, but head completely light brown, while apical half of mandibles black. Pronotum, sternal plate and abdomen light brown. Legs as in male. Supra-anal plate light brown with narrow blackish stripe around lateral and apical margins; apex of cercus blackish; subgenital plate light brown with blackish distal part of lateral keels; ovipositor black with light lateral sides.

Measurements (length in mm). Body: male 22.5, female 22.8; antenna: male 16.0, female 17.0; pronotum: male 4.2, female 4.7; tegmen: male 4.5, female 7.4; hind femur: male 12.0, female 13.8; hind tibia: male 9.8, female 10.5; ovipositor 1.4.

Distribution. Indonesia: Halmahera Island (Maluku Utara Province).

Comparison. The new species is similar to Cranae emendata and C. tibialis in the brown pronotum without any black marks. All other species of the genus Cranae has black or dark brown stripes or spots on the disc and the lateral lobes of pronotum (C. Willemse, 1956; F. Willemse, 1977a). The female of the new species differs from C. emendata , in which the male is unknown, in the colour of tegmen (in latter, the tegmen is light brown with dark brown apex). In both sexes of C. tibialis , the tegmina are completely light, and the valves of cingulum and apical valves of penis are long and narrow (see F. Willemse, 1977a: figs 18, 19); while in the new species, tegmina with narrow black stripe along anterior (lower) side reaching the apex of tegmen ( Figs 1, 7), and the valves of cingulum and apical valves of penis are short and broad ( Fig. 4).

Etymology. The new species is named after the type locality.