Loxoblemmus (Asonicogryllus) bronzus He, 2021

Xu, Jing-Yi, Liu, Yi-Jiao, Li, Shi-Yu & He, Zhu-Qing, 2021, A new species of subgenus Asonicogryllus He, 2019 from Yunnan (Orthoptera: Gryllidae: Gryllinae), Zootaxa 5040 (2), pp. 238-246 : 242-245

Loxoblemmus (Asonicogryllus) bronzus He sp. nov. ffiů濯Dz

Figs 1–5

Holotype: male, CHINA, Yunnan, Dehong, Ruili (E 97.86 N 24.02), 26-iv-2018, coll. He Zhu-Qing.

Paratypes: 3 females & 2 males, same data as holotype ; 1 female, CHINA, Yunnan, Dehong, Longchuan (E 97.79 N 24.18), Alt. 1600 m, 10-vi-2018, coll. Bi Wen-Xuan.

Description. Male. Head: shining, vertex little protruding, frontal rostrum flat, 2 times as wide as the 1st antennal joint, median ocellus lower than lateral ocelli, maxillary palpi normal ( Fig. 2 CDE); Thorax: pronotum setose, anterior and posterior margin almost straight, without border between disc and lateral lobes, one oval tympanum on outside of foretibia and one small tympanum on inner side ( Fig. 2 FG); forewings well developed, 2–2.5 times as long as pronotum (Fig. A). Hind tibia with 5 pairs of dorsal spines, three inner apical spurs and three outer spurs ( Fig. 2 H ), epiproct normal ( Fig. 2 I ). Genitalia: posterior epiphallic lobes elongate and apically little curved upwards, mesal posterior epiphallus protruding but little concave in middle, posterior edge of ectoparameron large and swollen; as long as posterior epiphallic lobes ( Fig. 3 ABC).

Female. Similar to male; forewing 1.5 times the length of pronotum ( Fig. 2 B ), ovipositor long and straight ( Fig. 2 J ).

Coloration.

Hatchlings: head light yellow and antennae white ( Fig. 4 A ).

Nymphs: posterior part of head with a white stripe, antennae white with black apex ( Fig. 4 B ).

Adults: almost black, forewing brown ( Fig. 4 CD).

Etymology. The name bronzus is used to emphasize the color of its forewings.

Measurements (in mm).

Male: body length 12.02–13.06, pronotum length 2.59–2.88, hind femur length 6.80–7.40, forewing length 6.01–6.38

Female: body length 11.87–13.32, pronotum length 2.54–2.80, hind femur length 6.74–7.05, forewing length 3.57–3.63, ovipositor length 6.61–7.17.

Song. The song rate is about 98 pulse groups/minute. One pulse group consists of 9.029±1.243 pulses. The duration of pulse group is 0.419± 0.068s. The interval of pulse group is 0.205± 0.032s, as in Fig. 5 .

Distribution. China (Yunnan).

Figures

FIGURE 1. The phylogenetic relationship among some Gryllinae species inferred from the COI-cytb-18S-28S concatenated fragments. The tree was constructed by Maximum likelihood (ML) with GTR+G4+F model and rooted by Duolandrevus obsidianus. Topology supports of all major nodes are indicated above branches by SH-aLRT value and the bootstrap value.

FIGURE 2. Morphological features of Loxoblemmus (Asonicogryllus) bronzus. A. male pronotum and forewing; B. female pronotum and forewing; C. male head in front view; D. male head in dorsal view; E. male head in lateral view; F. male foretibia from inner side; G. male foretibia from outside; H. male hind tibiae in dorsal view; I. male epiproct in dorsal view; J. ovipositor in lateral view.

FIGURE 3. A. male genitalia in dorsal view; B. male genitalia in ventral view; C. male genitalia in lateral view.

FIGURE 4. Loxoblemmus (Asonicogryllus) bronzus in live. A. hatchling; B. nymph; C. female; D. male.

FIGURE 5. Oscillograms of Loxoblemmus (Asonicogryllus) bronzus calling song.