Kosemia radiator ( Uhler, 1896 )

Qi, Shengping, Hayashi, Masami & Wei, Cong, 2015, A review of the cicada genus Kosemia Matsumura (Hemiptera: Cicadidae), Zootaxa 3911 (4), pp. 451-492 : 489-490

Kosemia radiator ( Uhler, 1896)

Figure 32

Melampsalta radiator Uhler, 1896: 276 . Cicadetta radiator: Oshanin, 1908: 399 . Kosemia radiator: Matsumura, 1927: 55 . Leptopsalta radiator: Kato, 1928: 85 .

Material examined. 1♂ (SUU), Mt. Hiwada-yama, Saitama Prefecture, (central) Honshu, Japan, 17-x-1980, coll. M. Hayashi leg.

Description of male. Ground color of body black, polished, with silvery pile.

Head ( Fig. 32 A). Head including eyes about as wide as base of mesonotum. Vertex and antennae black. Supraantennal plates, paramedian posterior margin of vertex, lateral margins of postclypeus, all yellowish brown. Ocelli light red. Eyes brown. Rostrum black, reaching to middle coxae.

Thorax ( Fig. 32 A). Pronotum black with anterior and posterior margins reddish brown; central longitudinal fascia widened posteriorly (where it contains one small black spots) with pale yellowish. Lateral part of pronotal collar slightly ampliate laterally; lateral angle well ampliate posterolaterally. Mesonotum with a slender line in the same color of deltoid yellow spot on each side of disk, which is connected with corresponding deltoid spot and extends posteriorly to anterior arm of cruciform elevation. Cruciform elevation light brown.

Wings ( Fig. 32 A). Wings hyaline. Fore wing with costal, basal and ulnar veins greenish yellow, anal veins and apical margin dusky; basal membrane sanguineous; veins M and CuA adjacent to one another at basal cell, but not fused as one. Hind wing with a heavy brown infuscation along vein 2A to its distal end and around ambient vein of cubital cell 2 and anal cell 1; plaga on most of 3A and basal part of jugum also infuscated.

Legs ( Fig. 32 A). General color greenish yellow. Fore leg with fasciae of coxa, one or two spot(s) of trochanter, two longitudinal fasciae and tips of femur, tips and longitudinal fasciae of tibiae, all black. Fore femur with three strong spines beneath all slightly slanted and black, decreasing in size from primary to tertiary spine.

Abdomen ( Fig. 32 A). Abdomen long and narrow, slightly longer than head and thorax together. Abdominal tergites almost black, furnished with dense, short silvery pubescence; tergites I–II almost black; posterior margins of tergites III–VII and lateral side of tergite VIII yellowish brown or dark brown. Abdominal sternites fulvous with dense silvery pile, middle of venter striped with a series of black spots.

Genitalia. Dorsal beak of pygofer moderately long and spine-shaped, narrowly pointed at apex. Upper lobe of pygofer broadly triangular in lateral view, apex obtuse; basal lobe of pygofer broadly angled in lateral view. Median lobe of uncus small, apex slightly upswept in lateral view. Clasper moderately elongated, digitate, meeting the other one at base then widely separated anterolaterally, apex obtuse.

Measurements. (1♂) (in mm). Body length: 20.3; total length including forewings: 29.6.

Distribution. Japan.

Remarks. This species had been documented from Jilin, Liaoning, Shanxi, Qinghai, Hubei of China ( Chou et al., 1997; Hua, 2000; Lee et al., 2002). Recently, Hayashi & Saisho (2011) stated that this species is endemic to Japan, while the specimens collected from North Korea and Northeast China which has been mistakenly identified as K. radiator should be K. admirabilis (for detailed description see above). In our study, we have not found any material of K. radiator from China. Therefore, this species is removed from China cicada fauna.