Alloeorhynchus (Alloeorhynchus) yunnanensis, Zhao, Ping, Mao, Runqian & Cao, Liangming, 2019

Zhao, Ping, Mao, Runqian & Cao, Liangming, 2019, Two new and one little-known damsel bug of the subfamily Prostemmatinae Reuter (Hemiptera, Heteroptera, Nabidae) from China, ZooKeys 845, pp. 139-152 : 146-147

Alloeorhynchus (Alloeorhynchus) yunnanensis sp. n. Figs 10, 11-18

Type material.

Holotype, male, China, Yunnan, Xishuangbannan, Mengla, Mengman Town, Nanping Village, 23-IV-2013, 21°17'18.86"N, 101°17'48.86"E, Wan Renjing and Zhao Ping leg.

Diagnosis.

Corium reddish brown, and its basal, middle and apical part with obscure yellow markings; fore femur beneath with four distinct tubercles; head greyish yellow, anterior pronotal lobe greyish brown with median longitudinal part yellow.

Description.

Color. Body greyish brown dorsally and pale yellowish ventrally. Basal, middle, and apical markings of corium, apical part of femur, basal part of tibia, two sides of abdomen ventrally tinged with red (Figs 10, 12). Antennae, neck dorsally, thorax (except metapleuron somber black), scutellum, corium (except markings), clavus (except basal part), subapical part of femur, hind tibia (except basal part), hind tarsus, basal part of fourth to seventh connexival segments brown (Figs 10, 12); spines beneath femur, tibiae of fore and mid legs, membrane black (Figs 10-12); head (except neck dorsally), rostrum, coxae, trochanters, femora (except apical part), fore and mid tibiae, markings of corium, middle part of abdominal sternum, second connexival segment, apical part of third to seventh connexival segments yellow.

Structure and vestiture. Body elongate oblong (Fig. 10). Body clothed with yellowish to white setae; first antennal segment sparsely clothed with oblique setae, second to fourth segments densely clothed with oblique setae; scutellum and corium of fore wing clothed with blackish setae (Figs 10-12). Subapical part of first antennal segment somewhat curving outward. Pronotum smooth and shiny, anterior pronotal lobe somewhat bulged; scutellum sub-angular, apical part somewhat produced posteriorly. Fore coxa strong, subequal to 1/2 of femur in length; fore and mid femora thickened and ventrally sub-basal 2/5 dilated in a protrusion, and fore femur beneath inside with four small short spines and outside with numerous black denticles from the protrusion to apical part of femur; fore tibiae apically dilated with spongy fossula and beneath with two lines of black spines; mid tibiae beneath with a line of distinct spines and a line of indistinct spines (Figs 10, 11); fore wing extending beyond tip of abdomen. Pygophore round, median pygophore process broad and produced acutely laterally (Fig. 13); paramere triangulate, apical part dilated (Figs 17, 18); basal plate of phallobase short and thick, pedicel short (Figs 14, 17). Phallosome elliptic, shown in Figs 17, 18.

Measurements. Male, n = 1. Body length 5.86; maximal width of abdomen 2.00. Length of head 0.80; length of anteocular part 0.27; length of postocular part 0.20; length of synthlipsis 0.33; interocellar space 0.07; length of antennal segments I–IV = 0.53, 1.20, 1.13, 1.71; length of rostral segments I–IV =0.33, 0.97, 0.73, 0.27; length of anterior lobe of pronotum 0.93; length of posterior lobe of pronotum 0.53; maximal width of thorax 1.73; length of scutellum 1.00; length of hemelytron 4.00.

Female. Unknown.

Distribution.

China (Yunnan).

Etymology.

The specific name refers to the type locality of the new species.

Remark.

The general body shape and the structure of fore leg resemble those of Alloeorhynchus (Alloeorhynchus) maculosus Kerzhner, 1992 (India, Sumatra). In the new species the neck of the head is greyish, the anterior pronotal lobe is greyish brown with pale markings, the markings on the corium of fore wing is obscure, and the fourth to seventh connexival segments are yellow basally with brown markings (vs. the anterior pronotal lobe yellowish and its anterior margin darker, the head is yellow, the markings on the corium of fore wing are distinct, and the fourth to fifth connexival segments have brown markings in A. (A.) maculosus ). The species is also similar to Alloeorhynchus (Alloeorhynchus) fuscescens Kerzhner, 1992 (Nepal, Vietnam) and Alloeorhynchus (Alloeorhynchus) himalayensis Kerzhner, 1992 (northern India) in the body coloration and the body size, but the paramere in the new species is triangular with an apical protuberance (Figs 15, 16) [vs. the paramere clavate without an apical protuberance in A. (A.) fuscescens and A. (A.) himalayensis ]. The fore femur of the new species is with many small spines and four distinct larger spines [vs. the fore femur beneath with many small spines but without four distinct larger spines in A. (A.) distanti Harris, 1940 (Northern India and Nepal)] ( Kerzhner 1992).