Hypseloecus siamensis, Yasunaga, Tomohide, Yamada, Kazutaka & Artchawakom, Taksin, 2015

Yasunaga, Tomohide, Yamada, Kazutaka & Artchawakom, Taksin, 2015, First Indochinese records of the plant bug genus Hypseloecus Reuter (Hemiptera: Heteroptera: Miridae: Phylinae: Pilophorini), with descriptions of eight new species from Thailand, Zootaxa 3925 (1), pp. 75-93 : 89-92

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Hypseloecus siamensis

sp. nov.

Hypseloecus siamensis sp. nov.

( Figs. 2 View FIGURE 2 A, 5–7)

Diagnosis. Recognized by the following combination of characters: medium-sized body; fuscous dorsum ( Fig. 2 View FIGURE 2 A); yellowish brown, broad head ( Fig. 5 View FIGURE 5 ); grayish yellow, slender antenna; and identical color patterns of coxae ( Fig. 6 View FIGURE 6 ) and femora ( Fig. 7 View FIGURE 7 ). Most closely related to H. phuvasae , from which this new species can be distinguished by the pale antennal segments I and II, longer labium, dark metacoxa with whitish base, and different shape of ostiolar peritreme ( Table 1 View TABLE 1. A ).

Description. Female. COLORATION AND VESTITURE: Body generally fuscous, dorsal surface less shining, with densely distributed, reclining, silvery scalelike setae. Head yellowish brown, less shining; clypeus and surroundings darkened. Antenna grayish yellow; segment I with an obscure spot ventrally. Labium shiny reddish brown. Pleura dark, except for ostiolar peritreme yellowish white ( Fig. 6 View FIGURE 6 ); scutellum somewhat paler along lateral margin. Hemelytron dark, mat; cuneus tinged with red; membrane smoky brown, with pale veins and irregular spots. Coxae as in Table 1 View TABLE 1. A . Leg pale brown; basal half of profemur, basal 2 / 3 of mesofemur, and basal 1 / 3 and apical 1 / 6 of metafemur chocolate brown; pale parts of femora with reticular, pale red maculae; all tibiae with reddish brown annulations. Abdomen shiny fuscous. STRUCTURE: Body medium sized, rounded; head broad; labium long; remaining structures as in generic description (see Schuh & Menard, 2011). Male. Unknown.

Measurements. ♀: Total body length 2.69; length from apex of clypeus to cuneal fracture 2.09; width of head across eyes 1.01; head height 0.62; width of vertex 0.48; lengths of antennal segments I −IV 0.20, 0.87, 0.51, 0.55; basal width of pronotum 1.23; maximum width across hemelytron 1.56; and length of metatibia 1.39.

Etymology. Named for its occurrence in the Siamese nation, or Thailand.

Biology. A single female was recently found from inflorescence of Scurrula sp. ( Loranthaceae ) parasitizing Ficus sp. ( Moraceae ) ( Fig. 1 View FIGURE 1 A).

Holotype. ♀, THAILAND: Nakhon Nayok: Sarika near Nangrong Waterfall along stream, 14 ˚ 19 ' 39.5 ”N 101 ˚ 19 '07.4”E, on flower of Scurrula sp., 3 Nov 2014, T. Yasunaga ( AMNH _PBI 00380263) ( DOA).


American Museum of Natural History


Department Of Agriculture, Thailand