Wygomiris kaliyahae, Yasunaga, Tomohide, 2012

Yasunaga, Tomohide, 2012, Review of the phyline plant bug tribe Auricillocorini from Asia, with descriptions of a new genus and nine new species from Japan, Nepal and Thailand (Hemiptera: Heteroptera: Miridae: Phylinae), Zootaxa 3530, pp. 1-24 : 18-20

Wygomiris kaliyahae new species

( Figs. 3 , 4 , 10 A–B, 11)

Diagnosis. Recognized by the smallest size (as far as known) among the congeners, chestnut brown basic coloration, and form of the male genitalia. This new species is most closely related to W. dumaguete Schuh , from which it can be distinguished by the smaller size, larger eye, narrower vertex, developed sensory lobe of the left paramere, slender phallotheca that is terminated in the hooked apex, and longer apical spine of the endosoma.

Description. Body almost unicolorously chestnut brown, tiny, less than 3 mm in total length; dorsal surface weakly shining, with simple, semierect setae and sericeous, reclining setae. Head weakly shining; clypeus weakly projected. Antenna dull brown, short, terete. Labium mahogany brown, reaching apex of mesocoxa. Pronotum weakly shining; collar pruinosed, about as thick as base of antennal segment II; ostiolar peritreme with a median knob; posterior margin of evaporative area yellowish brown. Hemelytra somewhat lighter than reminder of body and appendages, with uniformly distributed, silvery, reclining setae and sparsely distributed, simple, semierect setae; membrane smoky brown. All coxae and legs dull brown, except for paler tarsi. Male genitalia ( Figs. 4 , 11 ): Genital segment with a ventral spine ( Fig. 4 ). Right paramere weakly curved; left paramere with developed sensory lobe. Phallotheca almost straight, tapered, terminated in an apical hook. Endosoma J-shaped, with slender apical spine. Female genitalia: Not examined.

Measurements. 3/Ƥ: Total body length 2.7–2.8/ 2.7–2.8; length from apex of clypeus to cuneal fracture 1.75–1.93/ 1.80–1.93; head width across eyes 0.57–0.60/ 0.56–0.59; vertex width 0.24–0.26/ 0.29–0.30; lengths of antennal segment I–IV 0.15–0.16, 0.64–0.66, 0.39–0.42, 0.30–0.32/ 0.15–0.18, 0.60–0.63, 0.39–0.45, 0.30–0.38; labial length 0.90–0.91/ 0.92–0.96; mesal pronotal length 0.57–0.59/ 0.51–0.54; basal pronotal width 0.90–0.91/ 0.90–0.91; width across hemelytron 0.96–1.05/ 1.05–1.17; and lengths of metafemur, tibia and tarsus 0.75–0.78, 1.02–1.04, 0.24–0.26/ 0.78–0.87, 1.08–1.11, 0.24–0.26.

Etymology. Named to celebrate the new birth of Kaliyah, a great granddaughter of Prof. Carl Schaefer who kindly supports us in various aspects.

Distribution. Thailand (Nakhon Ratchasima Prov.).

Biology. Collection records suggest this new species has at least two generations per year.

Holotype: 3, THAILAND: Nakhon Ratchasima Prov.: SERS, 14˚30'27”N, 101˚55'39”E, 410 m alt., light trap, 24 Jan 2009, T. Yasunaga ( AMNH _PBI 00379521) ( SUT).

Paratypes. THAILAND: 13, same data as for holotype, except for date 25–27 Feb 2009 (00379522) ( TYCN); 131Ƥ, same locality, light trap, 17–20 Mar 2010, T. Yasunaga & K. Yamada (00379523–00379524) ( AMNH, TYCN); 1Ƥ, same locality, light trap, 19–21 Aug 2008, T. Yasunaga & B. Shishido (00379525) ( TYCN).

Figures

FIGURE 3. Metathoracic scent-efferent system of 10 nominal species of Auricillocorini named on the figure.

FIGURE 4. Male genital segment (pygophore) of species of Artchawakomius, Cleotomiris, Cleotomiroides and Wygomiris named on the figure.

FIGURE 10. Habitus images of Wygomiris species, living individuals taken in Thailand (A – B) and Nepal (E – F). A – B W. kaliyahae: holotype male (AMNH _ PBI 00379521); B, female (00379524). C – D W. nanae, holotype female (00379518). E – F W. ramae: E, female (00379529); F, female (00379527).

FIGURE 11. Male genitalia of Wygomiris species named on the figure.