Reticuluma hamata Wang & Zhang, 2019

Wang, Dongming & Zhang, Yalin, 2019, Two new species of the genus Reticuluma Cheng & Li (Hemiptera: Cicadellidae Deltocephalinae: Penthimiini) from China, Zootaxa 4668 (2), pp. 289-295 : 291-294

Reticuluma hamata Wang & Zhang sp. nov.

( Figs. 1 E–H, 2G–L)

Description. Coloration. Vertex pale yellowish, covered with black brown reticulation, six pale reddish brown spots arranged in an arc between eyes; ocelli yellowish brown; eyes grey with reddish brown strip ( Fig. 1G ). Face black ( Fig. 1H ). Pronotum pale yellowish, with pale reddish brown patches on the anterior margin. Scutellum pale yellowish with pale reddish brown spot near each basal angle and apical area, spots on the end of the transverse yellowish white ( Fig. 1G ). Tegmina with dense and dark brown reticulations ( Fig. 1E ).

Morphology. Head declivous, slightly narrower than pronotum; Crown medial length 0.5 times than width between eyes ( Figs. 1F, G ). Postclypeus slightly concave ( Fig. 1H ). Pronotum length 1.5 times medial length of crown. Scutellum length 0.9 times medial length of pronotum ( Fig. 1G ). Fore femur with short dorsal setae, IC row comprising 10 setae. Fore tibia with 8 setae on PD row, 7 on AD row, 18 on PV row, 25 on AV row. Hind femur macrosetal formula 2+2+1. Hind tibia with 22 macrosetae on PD row, 10 on AD row, 13 on AV row.

Male genitalia. Pygophore lobes rounded caudally with short and long macrosetae near posterior margin ( Fig. 2G ). Valve triangular. Subgenital plate longer than length of pygofer, lateral margin sinuate with sparsely distributed setae on ventral side ( Fig. 2H ). Connective ‘Y’-shaped, similar in length to style, arms slightly shorter than stem ( Fig. 2J ). Style apex cheliform with developed preapical lobe, lateral margin sinuate, preapical lobe with several setae near inner margin ( Fig. 2I ). Aedeagus simple, dorsal apodeme and preatrium plate-like, well developed, dorsal apodeme apex rounded in posterior view; shaft curved dorso-anteriorly, slightly narrowed caudally; gonopore apical ( Figs. 2K, L ).

Measurement. Length of male including tegmen: 3.8–4.0 mm.

Material examined. Holotype ♂ (NWAFU), CHINA, Yunnan Prov., Jingdong County, 28 April 2018, coll. Lu Lin ; Paratypes:1♂( NWAFU), same data as holotype; 1♂( IZCAS), CHINA, Yunnan Prov., Nujiang Prefecture , 22 May 2009, coll. Ding Liang.

Remarks. This species is similar to R. dactyla in the male genitalia but differs in having a longer dorsal apodeme and bilobed preatrium.

Etymology. This specific epithet is from the Latin word “ hamatus ” referring to the hook shaped aedeagus in lateral view.

Figures

FIGURE 1. A–D. Reticuluma lageniformia A, habitus, dorsal view; B, habitus, lateral view; C, head and pronotum, dorsalview; D, face. E–H. Reticuluma hamata E, habitus, dorsal view; F, habitus, lateral view; G, head and pronotum, dorsal view; H, face.

FIGURE 2. A–F. Reticuluma lageniformia A, male genital capsule, lateral view; B, genital valve and subgenital plate, ventral view; C, style, ventral view; D, connective, ventral view; E, aedeagus, posterior view; F, aedeagus, lateral view. G–L. Reticuluma hamata G, male genital capsule, lateral view; H, genital valve and subgenital plate, ventral view; I, style, ventral view; J, connective, ventral view; K, aedeagus, posterior view; L, aedeagus, lateral view.