Arria pura Wang & Chen, 2021
publication ID |
https://dx.doi.org/10.3897/zookeys.1025.56780 |
publication LSID |
lsid:zoobank.org:pub:0E2D3978-11A1-43F6-8D42-20BA15C44DC1 |
persistent identifier |
https://treatment.plazi.org/id/12C0F813-0717-4B2D-81C7-1E713062E2AE |
taxon LSID |
lsid:zoobank.org:act:12C0F813-0717-4B2D-81C7-1E713062E2AE |
treatment provided by |
|
scientific name |
Arria pura Wang & Chen |
status |
sp. nov. |
Arria pura Wang & Chen sp. nov. Figs 1 View Figure 1 , 2 View Figure 2 , 3 View Figure 3 , 4A-C View Figure 4 , 6 View Figure 6
Type material.
Holotype: ♂, China: Guizhou Province, Weining County, Jinzhong Town (26°42.34'N, 104°37.29'E), 2550 m, 17.VIII.2017, Ying-Jian Wang; Paratypes GoogleMaps : 1♀, same data and locality as holotype ( IEGU), PT1 GoogleMaps ; 1♀, Guizhou Province, Weining County, Xueshan Town (27°04.04'N, 104°06.68'E), 2450 m, 2.IX.2019, Feng-E Li, PT 2 GoogleMaps .
Description.
Measurements are provided in Table 1 View Table 1 .
Male. Small, slender (Figs 1A View Figure 1 , 3 View Figure 3 ).
Head (Fig. 2A View Figure 2 ). Triangular, about 1.4 times as wide as long. Vertex with pair of paramedian depressions, otherwise flat. Compound eyes oval and large, conspicuously projecting outside profile of head. Juxtaocular bulges present, extending to the dorsal edge of vertex. Ocelli large and elliptic, lateral paired ocelli larger. Antennae filiform, ciliated. Scapus cylinder-shaped, slightly depressed in the middle, approximate as length as width. Pedicellus almost as long as scapus yet narrower, goblet-space. Third antennomere about as long as pedicel. Fourth antennomere less than half of third length. Lower frons transverse, 4.2 times as wide as high, flat medially, with dorsal and lateral margins bordered by protruding ridge, ventral margin inconspicuous, dorsal margin obtuse-angled. Clypeus smooth, above of ventral margin with a transverse groove.
Prothorax (Fig. 2B View Figure 2 ). Short, 3.2 times as long as wide, metazone 1.5 times as long as prozone, lateral margins with small and few setiferous denticulations, middle carina present but feeble in prozone, behind supracoxal sulcus with pair of depressions, posterior margin with pair of paramedian bulges. Prosternum with middle carina posteriad supracoxal sulcus.
Cervix. No ventral cervical sclerite. Intercervical sclerite merged at middle, without torus intercervicalis. Postcervical plate and furcasternite flat.
Metathorax. With cyclopean ear of DK type.
Forelegs. Forecoxa longer than metazone with anterior lobes diverging, dorsal edge and ventral edge with 3-4 and 9-11 tubercules respectively, all tubercules with small seta (Fig. 2D View Figure 2 ); anterior and posterior surface of forecoxa mostly smooth. Forefemur (Fig. 2E View Figure 2 ) slender, with four posteroventral spines, almost as long as each other; four discoidal spines, numeric patterns: 1231, the fourth discoidal spines inclined toward apex strongly; eleven anteroventral spines, the resulting arrangement of the holotype being iIiIiIiIiiI; posteroventral genicular lobe with two spines arranged in a row and the small one near apex (Fig. 1C View Figure 1 ); anteroventral genicular lobe with a single spine; F = 4DS/11AvS/4PvS. Foretibia armament: six posteroventral spines, the apical two closes to each other; eight anteroventral spines, elongating distally; T = 8AvS/6PvS. Metatarsus 1.5 times as long as remaining tarsomeres combined.
Middle and hind legs. Long, cursorial. Meso- and metafemur apically without genicular spine. Meso- and metatibia apically with two spines. Middle 2 to 5 tarsomeres combined 1.6 times as long as middle metatarsus. Hind metatarsus slightly longer than remaining tarsomeres combined.
Wings (Fig. 2C View Figure 2 ). Fully developed, surpassing the end of abdomen. Forewing hyaline without spots, 5.4 times as long as width. Costal field reaches 4/5 of the forewing’s length. Stigma elongated, inconspicuous.
Abdomen. Depressed dorsoventrally, coxosternite 9 (subgenital plate) (Fig. 4C View Figure 4 ) longer than wide, covered ventrally and laterally by numerous setae. Tergite 10 (supra-anal plate) (Fig. 4B View Figure 4 ) triangular. Cerci with approximate 12 cercomeres, difficult to distinguish from each other near the base, distal-most cercomere elongate.
Male genitalia (Fig. 4A View Figure 4 ). Sclerite L4A approximately rhomboidal, with strongly transverse terminal lobe (tl) on right side of distal process in ventral view. Distal process inclined dorsolaterally, at an angle of 100° relative to the plane of L4A. Sclerite L4B winebottle-shaped, slightly curved near base. Sclerite L2 with apical process paa strongly curved, almost parallel to L4B dorsally. Sclerite L1 elongated, afa sclerotized, covered by numerous small granules apically. Fda of right phallomere sclerotized by sclerite R 1A densely covered by long setae. Sclerite R 1A more or less triangular. Sclerite R 3 drumstick-shaped; sclerotized processes very developed. Sclerite R 1B with pia well sclerotized, process pva large, ear-shaped.
Coloration. General color brown. Vertex brown; juxtaocular bulges fuscous. Ocelli hyaline. Foretrochanter black ventrally, base anteroventral of forefemur black as well as base of tibial spur groove (Fig. 2E View Figure 2 ). All spines arising from forefemoral, foretibial and tibial spur fuscous apically. Meso- and metatibia light brown. Fore- and hindwings hyaline, light brown, apex and costal area of forewings brownish (Fig. 2C View Figure 2 ).
Female. Apterous (Fig. 1B View Figure 1 ).
Head (Fig. 2G View Figure 2 ). Triangular, about 1.3 times as wide as long. Compound eyes oval and large, obviously projecting outside profile of head. Juxtaocular bulges slightly exceeding dorsal margin of vertex. Ocelli smaller than male. Antennae much shorter than male. Lower front transverse 3.9 times as wide as long, dorsal and lateral margins depressed.
Prothorax (Fig. 2H View Figure 2 ). 3 times as long as wide, metazone 1.5 times as long as prozone. Lateral margin with more and stronger denticulations. Several tubercules present on pronotum, especially prozone. The paramedian bulges near posterior margin more prominent. Carina on prosternum short.
Cervix. As in the male.
Metathorax. With cyclopean ear of DNK type.
Forelegs. Forecoxa longer than metazone with anterior lobes diverging, dorsal margin with 5-6 small tubercules, ventral edge with 13-15 smaller tubercules, all tubercules with small seta, anterior and posterior of forecoxa mostly smooth (Fig. 2I View Figure 2 ). Forfemur stronger than male; forefemoral armament with four posteroventral spines; four discoidal spines, numeric patterns: 1231, the fourth discoidal spine strongly inclined toward apex; anteroventral spines with the resulting arrangement: iIiIiIiIiiI; F = 4DS/11AvS/4PvS; both genicular lobes with only one spine. Foretibial armament consisting of 5 posteroventral and 7-8 anteroventral spines; T = 7-8AvS/5PvS.
Middle and hind legs. As in the male.
Wings. Apterous, wing pads fused to meso- and metathorax (Fig. 1B View Figure 1 ).
Abdomen. Much wider than male, fusiform. Posterior margin of 1-9 tergites and 2-6 coxosternites with several small tubercles. The lobes on the middle of tergites inconspicuous. Tergite 10 trapezoidal, longer than wide. Cerci short, slightly surpassing tergite 10.
Coloration. General color brown (Fig. 1B View Figure 1 ). Vertex and juxtaocular bulge yellowish-brown (Fig. 2G View Figure 2 ). Ocelli hyaline. Clypeus with several dark spots. Tubercules on pronotum dark brown as well as denticulations on lateral margin of pronotum (Fig. 2H View Figure 2 ). Anterior surface of forecoxa with 3-4 black spots near ventral margin (Fig. 2I View Figure 2 ). Foretrochanter black ventrally. Anteroventral base of forefemur, base of tibial spur groove and the middle of them black; anteroventral base of forefemur and base of tibial spur groove black, with another irregular black spots near one-fourth basal of anteroventral margin (Fig. 2J View Figure 2 ). All spines arsing from forefemoral, foretibial and tibial spur fuscous apically. Meso- and metatibia light brown. The tubercles on abdomen fuscous (Fig. 1B View Figure 1 ).
Ootheca (Fig. 6 View Figure 6 ). Small, rectangular, mostly trapezoid in cross-section. Residual process long, aciculiform. External wall generally russet brown, with many bubble-like structures embedded, without external coating. Ventral surface attached to complanate substrates, such as surface of leaves. Emergence area raised, openings inconspicuous. Measurements (in mm): length (without residual process), 6.1; length of residual process, 3.1; width, 3.8; thickest girth, 25.3; length of emergence area, 5.7; width of emergence area, 1.8.
Distribution.
China (Guizhou) (Fig. 11 View Figure 11 ).
Etymology.
The specific name is derived from the Latin words " Arria pura " (meaning pure) which refers to the forewing without any spots.
Remarks.
The new male species is much smaller than all other known species of Arria . Additionally, it can be distinguished from A. brevifrons , A. cinctipes , A. leigongshanensis , A. pallida and A. sticta by tegmina without any spots. Arria pura also differs from A. oreophila in having less forked RP and M.
T |
Tavera, Department of Geology and Geophysics |
R |
Departamento de Geologia, Universidad de Chile |
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.