Smyga Dworakowska, 1995

Webb, Michael D. & Xu, Ye, 2024, Revision of the leafhopper genus Smyga (Hemiptera, Cicadellidae, Typhlocybinae), ZooKeys 1198, pp. 135-141 : 135

Smyga Dworakowska, 1995

Smyga Dworakowska, 1995: 151.

Type species.

Smyga distincta Dworakowska, 1995 by original designation.

Description.

Body relatively robust. Pale yellow; head with a brown patch anteriorly (Figs 1 , 9 ); face with anteclypeus brown distally (Fig. 2 ), sometimes with more extensive brown marking ( S. divergens ); pronotum with a brown transverse narrow band at midlength, pale yellow anterior to band and silvery posterior to band (Figs 1 , 9 ); mesonotum with yellow to brown basal triangles (Figs 1 , 9 ).

Head including eyes broader than pronotum in dorsal view, crown short and broad, round anteriorly, length along midline shorter than one-half width between eyes; coronal suture well developed, extended onto face, and terminating at level of antennal bases (Fig. 2 ). Ocelli distinct, well separated from eyes (Fig. 2 ). Face moderately broad; lateral frontal suture well developed, curved mesad above antennal pit and meeting coronal suture at midline ventromesad of ocelli; anteclypeus slightly convex, not expanded (Fig. 2 ). Pronotum large with sinuate transverse depression (Figs 1 , 9 ). Forewing narrow, rounded apically; apical cells occupying almost one-third of total length; vein R2 and RM dissociated at bases, joined by cross-vein, both arising from r cell; vein ScP+RA is not detectable; vein MCu almost parallel with vein RM apically. Hindwing with MP+CuA confluent. Front femur seta AM1 stout, situated near ventral margin; intercalary row with one large basal seta and eight or nine smaller setae near tip of femur. Hind femur with macrosetal formula 2 + 1 + 1; tibia row AV with six or seven preapical macrosetae.

Male basal abdominal sternal apodemes (2S apodemes) well developed (Fig. 3 ). Male pygofer elongated, strongly narrowing caudad, posterior margin acute with few rigid microsetae distally, dorsal margin with macrosetae, long fine ventrolateral setae present, ventral appendage absent (Figs 4 , 10 ). Anal tube process elongate, extended to ventral margin of genital capsule (Figs 4 , 10 ). Subgenital plate broadest near base (Fig. 10 ) or subapically (Fig. 4 ), all categories of setae well differentiated; basal setae encompassing mid-length of plate; marginal setae well defined; macrosetae uniserate; feeble microsetae arranged in 2-4 irregular rows apically (Fig. 4 ). Connective with media sclerotization, anterior margin and posterior margin deeply emarginated (Fig. 7 ). Style short, sinuate, with tiny teeth and microsetae preapically (Fig. 11 ). Aedeagus shaft short, tubular, with basal apodeme long (Figs 5 , 13 ) or laterally compressed with basal apodeme short (Figs 6 , 12 ); gonopore apical on ventral surface (Fig. 12 ).

Notes.

Smyga superficially resembles Dapitana Mahmood, 1967 in the features of the head and wings (coronal suture extended onto face and terminating at level of antennal bases (Fig. 2 ), forewing with vein R2 and RM dissociated at bases, joined by cross-vein, both arising from r cell and vein ScP+RA is not detectable). It differs from Dapitana in color pattern (see generic description) and in having the male pygofer with one or two dorsal macrosetae and long fine ventrolateral setae (Figs 4 , 10 ) (pygofer without macrosetae and long fine setae in Dapitana ). Both genera occur on both sides of Wallace’s Line, separating the Oriental from Australian regions.

Smyga includes five previously known species, all from Borneo, described by Dworakowska (1995). In her treatment of the type species, S. distincta , Dworakowska also described and illustrated some "aberrant specimens" that she excluded from the type series because she considered the small, ventrally positioned aedeagal shaft to be "not functional." Here we recognize these specimens as a valid species: S. brevipenis sp. nov., as similar specimens of two new species have been seen in Xu’s (2019) PhD thesis.

As most Smyga species are from similar localities in Borneo (see Checklist) and as males are needed for identification, the female paratypes of two species ( S. distincta and S. zonata ) must be regarded as of uncertain identity (see also comments under S. distincta and S. zonata ). It is also of some interest that, compared to males, the number of known females is very low.

Distribution.

Oriental Region (Brunei, Malaysia).

Checklist to species of Smyga

S. brevipenis Webb & Xu, sp. nov. (Brunei, Ulu Temburong; Sarawak, Gunong Mulu National Park)

S. distincta Dworakowska, 1995: 153-155, figs 168-177 (Brunei, Ulu Temburong)

S. exhibita Dworakowska, 1995: 155, figs 198-205 (Brunei, Ulu Temburong)

S. niema Dworakowska, 1995: 155-156, figs 206-212 (Sabah)

S. ziewa Dworakowska, 1995: 155, figs 188-192 (Brunei, Bukit Sulang)

S. zonata Dworakowska, 1995: 155, figs 193-197 (Sarawak, Gunung Mulu National Park)

Figures

Figures 1 - 13. Smyga species 1 - 8 S. brevipenis 1 head and thorax, dorsal view (holotype) 2 face (holotype) 3 - 8 male genitalia after Dworakowska's (1995) figures of aberrant form of S. distincta 3 basal sternal apodemes 4 male genital capsule, left lateral view 5 aedeagus left lateral view 6 aedeagus, ventral view 7 connective 8 connective, style and subgenital plate 9 - 13 S. distincta 9 habitus (holotype) 10 - 13 male genitalia, after Dworakowska (1995) 10 genital capsule 11 style 12 aedeagus ventral view 13 aedeagus, left lateral view.