Eutetrapha weni

Huang, Gui-Qiang & Lin, Mei-Ying, 2016, Description of Eutetrapha weni n. sp. from Guizhou, China (Coleoptera: Cerambycidae: Lamiinae: Saperdini), Zootaxa 4109 (5), pp. 590-594 : 590-593

publication ID

https://doi.org/10.11646/zootaxa.4109.5.7

publication LSID

lsid:zoobank.org:pub:3CA73500-97DA-43A3-B68B-4F493DA88982

DOI

https://doi.org/10.5281/zenodo.3508961

persistent identifier

https://treatment.plazi.org/id/4C01FE46-FFB7-FFEB-FF52-C55057E587F4

treatment provided by

Plazi

scientific name

Eutetrapha weni
status

 

Eutetrapha weni n. sp

( Figs. 1–23 View FIGURES 1 – 12 View FIGURES 13 – 14 View FIGURES 15 – 23 )

Description: Male: length: 20.6 –23.0 mm, humeral width: 6.1–6.9 mm. Female: length: 25.0– 27.5 mm, humeral width: 7.5–8.5 mm. Body black. Head black, with two golden yellow to brick red brown pubescent stripes on occiput, which extend around antennal tubercles and inferior eye lobes to clypeus, sometimes meeting at base of frons (especially in males, Fig. 2 View FIGURES 1 – 12 ); labrum and a small vitta behind superior eye lobe (usually under scape) and lateral side of inferior eye lobe ( Fig. 4 View FIGURES 1 – 12 ) covered with same golden yellow to brick red brown pubescence; base of clypeus, upper and outer sides of basal half of mandibles with whitish pubescence ( Fig. 2 View FIGURES 1 – 12 ). Antennae black, apices of antennomeres II and III ringed with white pubescence (usually more developed on ventral and inner sides), sparsely fringed with short hairs on ventral sides of basal six or seven antennomeres. Prothorax dark black with five golden yellow to brick red brown pubescent stripes, one median and two on each side (first stripe not attaining basal margin ( Figs. 1 View FIGURES 1 – 12 a, 3, 8a), the second stripe extending to coxa ( Figs. 1 View FIGURES 1 – 12 b, 8 b)). Basal margin of pronotum and scutellum with grayish white pubescence ( Fig. 3 View FIGURES 1 – 12 ). Elytron dark black, with a large brick red brown pubescent marking along suture, and with three expanded patches ( Figs. 1 View FIGURES 1 – 12 a, 8 a): the first one at basal third, looking somewhat like a stylized monkey face (having two black eyes and two expanded ears, the ear attach to first lateral carina); the second one at middle, not reaching lateral carina; the third one at apex, with two black eyes, basal half not reaching lateral carina and apical half extending to lateral margin. Ventral surface mostly covered with golden yellow to brick red brown pubescence ( Figs. 1 View FIGURES 1 – 12 b, 8 b), except the middle line (larger in female than in male) and metepisternum which is black and sparsely covered with grayish short pubescence; males with a golden yellow sexual patch on middle of metasternum, and sternite VI without a middle black line ( Fig. 1 View FIGURES 1 – 12 b). Femora and tibiae black with grayish pubescence, more developed on some parts of tibiae (such as outer side of protibial apex, inner side of apical half of mesotibiae, dorsal side of middle of metatibiae); pro- and mesotarsi with dorsal side black with grayish pubescence, ventral side yellow brown; metatarsi golden brown with long golden brown hairs on dorsal and lateral sides ( Figs. 6, 12 View FIGURES 1 – 12 ).

Head slightly narrower than prothorax ( Fig. 3 View FIGURES 1 – 12 ). Eyes medially emarginate, inferior eye lobes ca. 1.5 times as high as (male, Fig. 2 View FIGURES 1 – 12 ) or subequal to (female) genae. Antennae relative slender, longer than body (10 th (male) or 11 th (female) antennomere reaching elytral apex); antennomeres ratio: male: 23: 5: 36: 27: 28: 27: 27: 25: 24: 23: 28; female: 26: 6: 37: 27: 28: 26: 25: 24: 23: 21: 23. Prothorax densely punctured, with one glabrous callus near middle of each black pronotal stripe ( Fig. 3 View FIGURES 1 – 12 ), before apex with a carina on each side ( Figs. 4, 9 View FIGURES 1 – 12 ), narrower from carina to apex ( Fig. 3 View FIGURES 1 – 12 ). Elytron densely and coarsely punctured, gradually narrower apically, with 2 lateral carinae, neither from base nor reaching apex; apex rounded, without tooth or spine at inner and outer angle. Sternite VII of male ( Fig. 5 View FIGURES 1 – 12 ) without a middle groove, with dense golden yellow apical hairs; sternite VII of female ( Fig. 10 View FIGURES 1 – 12 ) with a middle groove, with longer apical hairs. Legs slender, mesotibiae slightly grooved, metafemora reaching fourth or fifth abdominal segment, first metatarsal segment longer than following two segments combined ( Figs. 6, 12 View FIGURES 1 – 12 ). Anterior claw of pro- and mesotarsal claws of male with a small tooth ( Fig. 7 View FIGURES 1 – 12 ), female tarsal claws and metatarsal claws of male simple.

Male genitalia ( Figs. 15–22 View FIGURES 15 – 23 ): Tergite VIII ( Figs. 15 View FIGURES 15 – 23 a, 15 c) much broader than long, apex almost rounded with a small nick in middle, with moderate long setae at sides, setae in the middle shorter and sparser. Spiculum gastrale subequal to ringed part of tegmen in length, spiculum relictum about one fourth of spiculum gastrale in length. Tegmen ( Figs. 16 View FIGURES 15 – 23 a–c) length about 4.5 mm; lateral lobes stout, each about 1.0 mm long and 0.4 mm wide, with a finely setose ridge at ventral base ( Fig. 17 View FIGURES 15 – 23 ); apex with fine setae longer than half of lateral lobes; basal piece welldeveloped and bifurcated ( Fig. 16 View FIGURES 15 – 23 c); median lobe plus median struts slightly curved ( Fig. 18 View FIGURES 15 – 23 b), distinctly longer than tegmen (19: 15); median struts about half of whole median lobe in length ( Fig. 20 View FIGURES 15 – 23 ); dorsal plate shorter than ventral plate; apex of ventral plate ( Fig. 19 View FIGURES 15 – 23 ) pointed (apex slightly blunt); median foramen slightly elongated; internal sac about three times as long as median lobe plus median struts, with four or five pieces of basal armature (located behind apex of median struts), two bands of supporting armature ( Fig. 21 View FIGURES 15 – 23 ), and three rods of endophallus ( Fig. 22 View FIGURES 15 – 23 ), two longer rods each about 4.0 mm, slightly shorter than tegmen, the short rod about 3.6 mm. Female genitalia: spermathecal capsule ( Fig. 23 View FIGURES 15 – 23 ) composed of an apical orb and a curved stalk, stalk only a little longer than apical orb. Spiculum ventrale longer than abdomen. (spiculum ventrale measured 13.5 and 14.2 mm for two adults, compared with abdomens which measured 11.0 and 12.5 mm in ventral view, respectively).

Diagnosis. This species can be separated from congeners by the unique brick red brown pubescence and unique elytral markings, larger body size, and unique golden brown metatarsi.

Etymology. The species is named after Mr. Dong Wen (Shandong, China), who brought the first specimen to the second author. Wen is his family name.

Remarks. The species is identified in the genus Eutetrapha for the following two key characters, which were emphasized recently ( Chou, Chung & Lin, 2010; Lin, Li & Yang, 2006): 1) male claws with anterior claw of pro- and mesotarsi appendiculate with small teeth, female claws simple; 2) elytra with two distinct lateral carinae, rounded apically.

The Chinese name of this species is "s 3 ⋏+ (= Hou Zhi Ji Tian Niu), which means “monkey Eutetrapha .” This name was chosen because the elytral markings form what appear to be stylized monkey faces; also, the year of publication (2016) is the year of the monkey in China.

Biological and ecological notes. The specimens studied were collected from Guizhou, China during June to August. In June, the beetles were observed on plants near a road at midday ( Figs. 13–14 View FIGURES 13 – 14 , personal communication with collector Yang Li), which may indicate that this is a diurnal species. In August, a dead specimen was found on the road (personal communication with collectors Jian-Yue Qiu and Hao Xu). One female ( Fig. 14 View FIGURES 13 – 14 ) was observed on a leaf of Pilea pumila (L.) A. Gray [ Urticaceae , plant identified by Yang Li and confirmed by a botanist (Ying Liu) based on the picture]. However, the specimen was not observed feeding and the host plant remains unconfirmed.

Distribution. China: Guizhou.

Material examined. Holotype, male ( Figs. 1 View FIGURES 1 – 12 a, 1 b), China, Guizhou, Leishan, Mt. Leigongshan , Lianhuaping , N 26 ° 22 ', E 108 ° 12 ', alt. 1631m, 2014. VI. 18, leg. Jing Yang ( IZAS, IOZ (E) 1905306 , ex KLUC). GoogleMaps Paratypes: 1 female, same data to holotype but deposited in ( KLUC); GoogleMaps 1 female, same data to holotype but 2014. VI. 16 and deposited in ( KLUC); GoogleMaps 1 male ( Fig. 13 View FIGURES 13 – 14 ) 1 female ( Figs. 8 View FIGURES 1 – 12 a, 8 b, 14), same data to holotype but 2014. VI. 21, leg. Yang Li ( IZAS, IOZ ( E) 1905304 -05 ); GoogleMaps 1 female, same data to holotype but, 2011. VIII. 11, leg. Jian-Yue Qiu & Hao Xu ( CWD); GoogleMaps 1 female, same data to holotype, but 2015. VII. 12, leg. Bo-Yan Li ( CGQH); GoogleMaps 1 male, S. China, SE. Guizhou, Dushan County, Gengdingshan env., N 25 ° 52.5 ', E 107 ° 38 ', alt. 1445 m, 2009.VI, leg. Sehnal et Hackel ( CPV) GoogleMaps .

CWD

CWD

CGQH

CGQH

CPV

CPV

IZAS

Institut Zoologii Akademii Nauk Ukraini - Institute of Zoology of the Academy of Sciences of Ukraine

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Cerambycidae

Genus

Eutetrapha