Hypseloecus sericosagus, 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

publication ID

https://dx.doi.org/10.11646/zootaxa.3925.1.5

publication LSID

lsid:zoobank.org:pub:26360E31-F2CE-4B4A-9C89-B9A33E6DF6B2

DOI

https://doi.org/10.5281/zenodo.5684920

persistent identifier

https://treatment.plazi.org/id/039F3D7C-BC73-D92D-FF35-FE6B1797F9BF

treatment provided by

Plazi

scientific name

Hypseloecus sericosagus
status

sp. nov.

Hypseloecus sericosagus sp. nov.

( Figs. 5 –7 View FIGURE 5 View FIGURE 6 View FIGURE 7 , 9 View FIGURE 9 A–B)

Diagnosis. Recognized by its generally fuscous, comparatively shiny body, with yellow appendages; dorsal vestiture pattern (rather uniformly distributed golden-brown setae and patchily distributed scalelike setae as in Fig. 9 View FIGURE 9 B); triangular head ( Fig. 5 View FIGURE 5 ); dark femora each with yellow apex; almost uniformly yellow tibiae; and peculiar form of endosoma ( Fig. 10 View FIGURE 10 ). Similar endosomal shape is exhibited by an Australian H. paramyemi Schuh & Menard , from which H. sericosagus is easily distinguished by the much smaller size and fuscous general coloration.

Description. Male: COLORATION AND VESTITURE: Body generally fuscous; dorsal surface rather shining, with widely distributed, reclining, golden-brown setae and patchily distributed, silky scalelike setae. Head shiny chocolate brown; vertex somewhat paler along inner margin of eye. Antenna wholly yellowish brown. Labium shiny reddish brown. Pleura as in Fig. 6 View FIGURE 6 ; ostiolar peritreme obscured anteriorly. Hemelytron and membrane as in Fig. 9 View FIGURE 9 B; membrane dark grayish brown with pale veins and irregular spots. Coxae as in Table 1 View TABLE 1. A . Leg whitish brown; all femora darkened with pale apices; all tibiae without spots or annulations. Abdomen shiny fuscous. STRUCTURE: Head narrow, triangular in frontal view; remaining structures as in generic description (see Schuh & Menard, 2011). Genitalia ( Fig. 10 View FIGURE 10 ): Left paramere with rather developed hypophysis. Endosoma broad, Jshaped, arranging brush-like structures distal to secondary gonopore. Female. Similar coloration and structure to male.

Measurements. ♂/♀: Total body length 2.1 / 2.1−2.4; length from apex of clypeus to cuneal fracture 1.71 / 1.71; width of head across eyes 0.78 / 0.81−0.84; head height 0.49 / 0.58−0.60; width of vertex 0.36 / 0.41−0.43; lengths of antennal segments I −IV 0.23, 0.81, 0.46, 0.60 / 0.21−0.24, 0.78−0.81, 0.38−0.39, 0.49−0.50; basal width of pronotum 0.98 / 0.97−1.07; maximum width across hemelytron 1.20 / 1.20−1.32; and length of metatibia 1.20 / 1.16−1.32.

Etymology. From Latin, sericus (= silk) in combination with sagus (= wearing); for this new species seems to wear a glossy silk gown.

Biology. Three adults were collected on Scurrula sp. growing from Homonoia riparia Lour. , together with many individuals of H. castaneus and H. katrinae . But population density was much lower than the latter two at that moment.

Holotype. ♂, THAILAND: Nakhon Nayok: Sarika near Sarika Waterfall, 14 ˚ 18 ' 32 ”N 101 ˚ 15 ' 20 ”E ~ 14 ˚ 18 '09”N 101 ˚ 15 ' 38 ”E, on Scurrula sp., 22 Mar 2010, T. Yasunaga, K. Yamada ( AMNH _PBI 00380260) ( DOA).

Paratypes. THAILAND: Nakhon Nayok: 2 ♀, same data as for holotype ( AMNH _PBI 00380261) ( TYCN). Nakhon Ratchasima: 1 ♀, SERS, 14 ˚ 30 ' 27 ”N, 101 ˚ 55 ' 39 ”E, 410 m alt., light trap, 25 Sep 2013, T. Yasunaga (00380262) ( TYCN).

AMNH

American Museum of Natural History

DOA

Department Of Agriculture, Thailand

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hemiptera

Family

Miridae

Genus

Hypseloecus