Chaetocnema (Udorpes) paragreenica Ruan, Konstantinov & Yang, 2019

Ruan, Yongying, Yang, Xingke, Konstantinov, Alexander S., Prathapan, Kaniyarikkal D. & Zhang, Mengna, 2019, Revision of the Oriental Chaetocnema species (Coleoptera, Chrysomelidae, Galerucinae, Alticini), Zootaxa 4699 (1), pp. 1-206 : 178

74. Chaetocnema (Udorpes) paragreenica Ruan, Konstantinov & Yang , New Species

( Fig. 103 )

Etymology: This species is named after its resemblance to C. greenica sp. nov. in the body shape and the punctation of head. Specific epithet is a noun in apposition.

Diagonosis: This species is close to C. greenica sp. nov. However, it can be differentiated from the latter by the entirely different body color and the structure of head (e.g., orbital, supraantennal sulci are present in C. paragreenica sp. nov., while both of the sulci are absent in C. greenica sp. nov.). It can be easily differentiated from all other Oriental Chaetocnema species by the shape of aedeagus and the structure of head.

Distribution: Nepal, India, Pakistan.

Host plants: Unknown.

Description: Body length: 1.90–2.10 mm. Body width: 1.12–1.15 mm. Antennae short, ratio of length of antenna to length of body: 0.54–0.57. Ratio of elytron length (along suture) to width (maximum): 2.32–2.35. Ratio of pronotum width (at base) to length: 1.59–1.61. Ratio of length of elytron to length of pronotum (along middle): 2.25–2.30. Ratio of width of elytra at base (in middle of humeral calli) to width of pronotum at base: 1.05–1.08.

Dorsum bronzy, finely reticulate. Antennomeres 1–5 completely yellow brown, 6–11 brown. Tarsi and tibiae yellow brown. Pro- and mesofemora yellow brown, with color slightly deeper than tibiae and tarsi. Metafemora dark brown with slight bronzy luster.

Head hypognathous. Frontal ridge wide and flat. Ratio of width of frontal ridge to width of antennal socket: 2.35–2.40. Frontolateral sulcus absent. Suprafrontal sulcus narrow, with a pit in middle, gently curved. Orbital, supraantennal sulci shallow, oblique; orbit wide, with a few small punctures on each side. Vertex evenly covered with small and closely placed punctures; frons covered with much larger and deeper punctures and white setae.

Base of pronotum evenly convex, without short longitudinal impressions or deep row of large punctures. Area adjacent to mid-basal margin of pronotum covered with punctures. Pronotum highly convex, anterolateral prothoracic callosity moderately developed, almost invisible in dorsal view. Lateral margins of pronotum convex, converging forward, with maximum width near base. Posterolateral prothoracic callosity poorly developed. Diameter of pronotal punctures 1–2 times smaller than distance between them.

Humeral callus weak, hind wing reduced or weak. Elytra with convex lateral sides. Scutellar row of elytral punctures single or slightly geminate. Second to eleventh rows of elytral punctures regular. Elytral interspaces between puncture rows slightly costate at sides.

Excavation on metatibia not deep. Large lateral denticle on metatibia obtuse. Metatibial serration proximal to large lateral denticle absent.

In ventral view, lateral margins of aedeagus irregularly curved. Ventral longitudinal groove of aedeagus moderately developed. Ventral longitudinal ridge in middle of aedeagus absent. Apical denticle of aedeagus in ventral view well-differentiated, short and wide, with concave apical margin. Minute, transverse wrinkles absent on ventral side of aedeagus. Aedeagus in lateral view highly curved at base and middle, slightly curved at apex.

Spermatheca with receptacle sinuated. Spermathecal pump much shorter than receptacle, with apex flattened. Receptacle basally as wide as apically; slightly narrowed in middle. Vaginal palpus slightly narrowing from base till middle, rest of it approximately parallel-sided. Anterior sclerotization of vaginal palpus parallel sided. Posterior sclerotization longer than wide. Posterior sclerotization wider than anterior.

Types: Holotype: ♂ ( USNM):1) Nepal, Pokhara Lumle St. Thulakharka 1640–2140m 22.IV.2000, 28 17.82N / 83 49.11E, leg. Konstantinov, Lingafelter, Volkovitsh; 2 ) Holotype; 3) Chaetocnema paragreenica sp. nov., Des. Ruan, 2016.

Paratypes: 1♂ 3♀ ( USNM), Nepal, Pokhara Lumle St. Thulakharka 1640–2140m 22.IV.2000, leg. Konstantinov, Lingafelter, Volkovitsh ; 2♂ 3♀ ( USNM), South India, Western Ghats Karnataka Prov , env. Mudigere , 14.XI. 2003, 904m, river, leg. Konstantinov, Prathapan, Saluk ; 1♂ ( USNM), India, Assam, 6 mile N Tinsukia , 29.III.1944, D. E. Hardy, Loan from USNMNH 2065634 ; 1♀ ( USNM), India, Madhya Prad. Jabalpur , 20–21.IX.1968, KE Gibson, Loan from USNMNH 2065634 ; 1♀ ( USNM), Pakistan, Lahore, VI–VIII.1957, J. Maldonaodo, Loan from USNMNH 2065634; 1 ( BMNH), Mangalore India, JCBridwell, coll Aug: 26, Chaetocnema paragreenica det. Yongying Ruan, 2016 .

Figures

FIGURE 103. Chaetocnema paragreenica sp. nov. A Holotype, habitus. B Pronotum and peri-scutellar area (Paratype). C Head, frontal view (Paratype). D Aedeagus, ventral view (Paratype). E Aedeagus, lateral view (Paratype). F Apex of aedeagus, ventral view (Paratype). G Vaginal palpi (Paratype). H Spermatheca (Paratype). I Pygidium (tergite 7) of female (Paratype).