Semia brevidilata Yang & Wei 2014, sp. nov.
Creators: name: Yang, Mingsheng
name: Wei, Cong
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Cicadidae
Semia
Semia brevidilata

description: Semia brevidilata, sp. nov.
(Figures 4 – 6)
Type material
Holotype: ♂ (NWAFU), China: Yunnan Province, Malutang, 11 June 2009, 900m, light trap, coll. Cui Wei. Paratypes: 1♀ (NWAFU), China: Yunnan Province, Malutang, 11 June 2009, 900m, light trap, coll. Cui Wei; 1♀ (NWAFU), China: Yunnan Province, Yaoqu, 29 May 2009, 800m, light trap, coll. Cui Wei; 1♀ (NWAFU), China: Hainan Province, Mt. Wuzhishan, 2 August 2009, 720m, light trap, coll. Gao Xia.
Description of male
Head (Figures 4A – B, 5A) mostly yellowish green, with pair of large irregular brownish markings on vertex, a black median fascia from between lateral ocelli broadly connected with posterior margin of head; ocellus reddish, eye castaneous, distance between lateral ocellus and corresponding eye much longer than that between lateral ocelli; lorum with large blackish mark; postclypeus moderately prominent, with black stripes along transverse grooves mid-anteriorly and large black mark posteriorly; anteclypeus mostly yellowish green, with large median blackish marking; rostrum yellowish green with blackish tip, almost extending to hind margin of sternite II.
Pronotum (Figure 4A – B) mostly yellowish green, with pair of central longitudinal black fasciae broadened at both anterior and posterior parts; anterolateral margin of pronotal collar dentate and posterolateral angle developed. Mesonotum (Figure 4A – B) mostly yellowish green, with the following black marks: central longitudinal fascia with posterior end broadened; pair of outwardly curved fasciae on submedian sigillae, with anterior part a little broadened and fused with central fascia; pair of inwardly curved fasciae along parapsidal sutures, with posterior end broadened and connected with the outwardly curved fasciae; pair of slightly inwardly curved short fasciae and several small irregular spots on lateral sigillae; pair of roundish spots enclosing scutal depressions. Ventral surface of thorax (Figure 4B) yellowish, without distinct markings.
Wings (Figure 4A – B) hyaline, with veins brown or yellowish green; forewing with infuscations along crossveins r, m, r-m, vein CuA 2, bases of veins RA 2 and M 1, apices of veins RA 2, RP, M 1 – 4 and CuA 1; hind wing tinged with continuous infuscations along basal veins of apical cells 1 – 3.
Legs (Figure 4B) mostly yellowish green; generally with blackish markings on basal and apical parts of both femora and tibiae, and on apical parts of pretarsi and pretarsal claws; fore femur with primary spine long, digitate and slant, secondary and subapical spines short, sharp and erect.
Abdomen (Figure 4A – B) pale yellowish to brown; timbal cover (Figure 5B) dark brown, small and somewhat semicircular; timbal (Figure 5B) largely exposed with seven ribs and three intercalary ribs. Operculum (Figure 4B) pale yellowish green, not beyond posterior margin of sternite II, transverse but both opercula widely separated from each other. Ventral surface of abdomen (Figure 4B) pale brown, somewhat translucent.
Genitalia (Figure 5C – D). Pygofer somewhat rectangular in ventral view; dorsal beak relatively short with obtuse tip, slightly protruding upwards in lateral view; distal shoulder acute, slightly curved laterally; uncal lobe of pygofer relatively short, semicircle-like developed and separated from the other one subbasally; basal lobe of pygofer rudimentary. Sternite VII short, with posterior margin angularly produced.
Description of female
Head and thorax (Figure. 6A – B) yellowish green to yellow, sparsely covered with short golden hairs. Lateral part of ambient fissure of pronotum with narrow black fascia, respectively. Mesonotum with the following black marks: very slender central longitudinal fascia with posterior end distinctly broadened; pair of slender and outwardly curved fasciae on submedian sigillae, with broadened anterior end fused with central longitudinal fascia; pair of inwardly curved fasciae along parapsidal sutures, with posterior end of the outwardly curved fasciae; two pairs of black spots in front of anterior angles of cruciform elevation. Abdomen (Figure 6A – B) short, somewhat obconical, mostly reddish brown dorsally and black ventrally. Operculum (Figure 6B) somewhat semicircular, with basal half mostly yellowish brown except for black lateral margin, apical half green; posterior margin rounded, reaching to posterior margin of sternite II. Pygofer (Figure 6C – D) with dorsal beak short and acute; ovipositor short, not extending beyond tip of abdomen; sternite VII with median incision narrow and relatively deep.
Measurement (1 ♂, 3 ♀♀)
Length of body (excluding wings): ♂ 34.0, ♀ 21.0 – 25.0; length of forewing: ♂ 37.0, ♀ 32.0 – 36.0; width of forewing: ♂ 11.5, ♀ 11.0 – 11.5; width of head (including eyes): ♂ 9.5, ♀ 7.5 – 8.0; width of pronotum (including pronotal collar): ♂ 11.5, ♀ 9.5 – 10.0; width of mesonotum: ♂ 10.0, ♀ 8.0 – 9.0.
Distribution
China (Hainan and Yunnan).
Etymology
The specific name is derived from Latin ‘brevi’ and ‘dilata’ which refer to the relatively short uncal lobes of pygofer.
Remarks
This new species is very similar to S. watanabei in external morphology, but it can be distinguished from the latter and other species of Semia by the relatively short uncal lobes of male pygofer.
description: Published as part of Yang, Mingsheng & Wei, Cong, 2014, New species of the cicada genus Semia Matsumura (Hemiptera: Cicadidae) from China and a phylogeny of Semia spp. and their relatives based on molecular data, pp. 2307-2323 in Journal of Natural History (J. Nat. Hist.) (J. Nat. Hist.) 48 (37 - 38) on pages 2314-2318, DOI: 10.1080/00222933.2014.908975, http://zenodo.org/record/4631483