Xiphovelia reflexa, Ye, Zhen & Bu, Wenjun, 2015

Ye, Zhen & Bu, Wenjun, 2015, A review of the genus Xiphovelia Lundblad, 1933 (Hemiptera: Heteroptera: Veliidae) from China, with descriptions of three new species, Zootaxa 3946 (2), pp. 190-200: 198-199

publication ID

http://dx.doi.org/10.11646/zootaxa.3946.2.2

publication LSID

lsid:zoobank.org:pub:5FCE5FD6-2AEF-40A4-9AB3-689E30FD28D4

persistent identifier

http://treatment.plazi.org/id/03E18726-FFA7-F116-29D6-FBCE066BFC7B

treatment provided by

Plazi

scientific name

Xiphovelia reflexa
status

sp. nov.

Xiphovelia reflexa   sp. nov.

( Figs. 3, 4 View FIGURES 1 – 4 , 14, 18 View FIGURES 11 – 20 , 25, 29 View FIGURES 21 – 29 , 36 View FIGURES 33 – 36 , 37 View FIGURE 37 )

Type material. Holotype: apterous male, CHINA, Henan Prov., Nanyang city, Xixia county, Longtangou (33 ° 30 ' N, 111 ° 37 ' E), 25.XIII. 2014, coll. Zhen Ye. Paratypes: CHINA, Henan Prov., 3 apterous males and 4 apterous females, same data as for holotype.

Diagnosis. X. reflexa   sp. nov. is similar to X. japonica Esaki & Miyamoto, 1959   , with both of hind portions of connexiva in females reflexed. However, X. reflexa   sp. nov. can be distinguished by the fore femur in male with a small dark stria on inner side of sub-apex.

Description. Apterous male ( Fig. 3 View FIGURES 1 – 4 ). Colour: ground colour brownish; head dorsum brown, ventrally grayish, clypeus yellowish brown, labrum shining black, rostrum yellowish brown with black apex; antennal segments I –IV yellowish brown; pronotum with a transverse band brownish, meso- and metanotum black, with a pair of rounded, silvery hair markings, indistinct on metanotum; legs yellowish with apices of femora, tibiae and tarsi weakly infuscated ( Fig. 3 View FIGURES 1 – 4 ), subapex of fore femora ventrally with blackish stria ( Fig. 14 View FIGURES 11 – 20 ); abdomen dorsally black, mediotergites II laterally, mediotergites III –VII medially except mediotergite V devoid of silvery hair marking, inner region of laterotergites III and VI with silvery hair markings; abdominal segment VIII, pygophore yellowish (after dissection), each weakly infuscated apically.

Structural characteristics. Body length 1.66–1.67 (holotype: 1.67), greatest width 0.73–0.74 (holotype: 0.74), small-sized, flat and oval, bearing short, grayish or silver, appressed pubescence; head short and wide, head length: 0.30–0.32, head width: 0.49–0.51, about 1.61 times head length; anterior margin of pronotum concaved; labrum reverse triangle; eyes globose, overlapping anterior pronotal angles; antennae about 0.56 times as long as body, length of antennal segments I –IV: 0.20, 0.21, 0.22, 0.31, antennal segment I stout, antennal segments II –III relatively slender, segment IV stouter than preceeding segment; pronotum short and transverse, pronotum width: 0.47–0.48, pronotum length: 0.10–0.11, about 4.7 times as wide as long; mesonotum large and transverse, broadly fused with metanotum medially; legs with mainly decumbent, short setae except middle tibiae ventrally with relatively long, erect setae; fore femora straight and thick, fore tibiae slightly curved in apical part, length of grasping comb 0.13, about 0.29 times tibiae length; middle trochanters longand slender, middle femora almost straight and thin, middle tibiae inner margin convexed, with a row of about 7–8 long erect bristles along inner margin ( Fig. 18 View FIGURES 11 – 20 ), claws and ventral arolium of middle tarsal segment II leaf-like structure inserted subapically; hind femora stout and narrowed toward both ends, hind tibiae straight and longer than middle tibiae; lengths of leg segments (trochanters, femora, tibiae and tarsi): fore leg: 0.17, 0.45, 0.39 and 0.20, middle leg: 0.22, 0.53, 0.46 and 0.43 (0.17 + 0.26), hind leg: 0.17, 0.50, 0.57 and 0.32 (0.11 + 0.21); abdomen dorsally narrowed backwards, connexiva narrow and almost flat. Genital segments: abdominal segment VIII ( Fig. 25 View FIGURES 21 – 29 ) about 1.50 times as long as wide, posterior margin with some short, sparse, erect, black brown hairs; pygophore ( Fig. 29 View FIGURES 21 – 29 ) swollen at posterior end in ventral aspect and with a ear-like process on each side; paramere rudimental.

Apterous female ( Fig. 4 View FIGURES 1 – 4 ). Body small-sized, slightly longer and greatly wider than male, coloration and markings similar to that of male; body length: 1.89–1.91, greatest width: 0.86–0.87; structure of head including antennae as in male, head length: 0.33–0.34, head width: 0.55–0.56, about 1.67 times head length, antennae about 0.50 times as long as body, lengths of antennal segments I –IV: 0.20, 0.21, 0.22, 0.32; pronotum width: 0.60–0.61, pronotum length: 0.09–0.10, about 6.0 times as wide as long; legs similar to those of male except fore tibiae without grasping comb, lengths of leg segments (trochanters, femora, tibiae and tarsi): fore leg: 0.20, 0.45, 0.39 and 0.20, middle leg: 0.21, 0.54, 0.47 and 0.44 (0.17 + 0.27), hind leg: 0.19, 0.50, 0.57 and 0.33 (0.11 + 0.22); connexiva broader than in male, hind portions erected and folded over abdomen but not touching each other ( Fig. 4 View FIGURES 1 – 4 ); genital segments retracted into abdomen.

Macropterous male and macropterous female: unknown.

Etymology. The specific name is derived from the Latin reflexus (meaning reflexed), refers to the reflexed hind portions of connexiva in female.

Distribution. China (Henan) ( Fig. 37 View FIGURE 37 ).