Oliarus artemisiae Matsumura, 1914, original designation.

For the diagnosis of Oecleopsis see Van Stalle (1991: 20) and Guo et al. (2009: 46).

China, Japan, Korea, Russia, Thailand, Malaysia, Indonesia and Cambodia (Fig. 1).

Figure 1. 

Geographic distributions of Oecleopsis species.

Holotype : China • ♂; Guizhou Province, Yanhe County, Xinjing Town; 28°53'N, 108°17'E; sweeping, 7 June 2007; Pei Zhang leg.; IEGU. Paratypes: 7♂♂, 3♀♀; China • Guizhou Province, Yanhe County, Xinjing Town; 28°53'N, 108°17'E; sweeping, 7 June 2007; Zheng-Guang Zhang & Pei Zhang leg.; IEGU.

The salient features of the new species include: vertex (Fig. 2A, C) less than three times as long as broad; spinose process near apex of periandrium on right side (Fig. 2K) short, nib-like; left side (Fig. 2L) apical process of endosoma bifurcated, rami of bifurcation asymmetrical; two subapical spines, dorsal process long and tapering to apex, lateral margins straight, ventral process constricted in the middle.

Figure 2. 

A–N Oecleopsis acerbus sp. nov., male A habitus, dorsal view B habitus, lateral view C head and thorax, dorsal view D frons, ventral view E forewing F male terminalia, lateral view G gonostyli, inner lateral view H pygofer and gonostyli, ventral view I anal segment, dorsal view J anal segment, right lateral view K aedeagus, right side L aedeagus, left side M aedeagus, dorsal view N aedeagus, ventral view. Scale bars: 0.2 mm.

Total length: male 7.20–7.76 mm (n = 8), female 7.61–8.05 mm (n = 3).

Coloration. General color grayish brown (Fig. 2A, B). Vertex blackish brown. Eyes yellowish brown, ocelli yellowish. Frons yellowish to blackish brown, carinae lighter; rostrum blackish brown. Pronotum blackish brown with carinae yellowish or light brown. Mesonotum blackish brown, carinae brown. Forewings semitranslucent, light grayish brown, distal part with several small patches, stigma yellowish brown. Hindwings semitransparent. Abdomen yellowish brown.

Head and thorax. Vertex (Fig. 2A, C) narrow, 2.36 times longer than wide. Frons (Fig. 1D) with distinct median carina, longer in middle line than wide at widest portion (about 1.33:1). Clypeus (Fig. 2D) with distinct median and lateral carinae. Rostrum elongate, surpassing hind-coxae. Pronotum (Fig. 2C) wider than maximum width of head (including eyes) (1.30:1), lateral and median carinae present. Mesonotum (Fig. 2C) about 6.41 times longer than pronotum in midline, with 5 carinae, distal part of median carina blurry. Forewings (Fig. 2E) slender, longer than maximal width (2.85:1), with 12 apical and 6 subapical cells; fork ScP+R distal to fork CuA₁+CuA₂; RP 3 branches, MP₁₊₂ 3 branches, and MP₃₊₄ 2 branches.

Male terminalia. Pygofer (Fig. 2F, H) symmetrical, in lateral view, lateral lobes triangularly extended caudally; in ventral view, dorsal margin concave and U-shaped. Medioventral process triangular in ventral view. Anal segment (Fig. 2F, I, J) tubular, asymmetrical, widened towards apex in left side view; in right side view, left ventral margin convex and right ventral margin excavated near apex; 1.55 times longer than wide in dorsal view; anal style finger-like, beyond anal tube. Aedeagus (Fig. 2K–N) in total with 4 processes; spinose process near apex of periandrium on right side short relatively, nib-like, directed right-dorsocephalad, only a quarter length of periandrium; left side apical process of endosoma bifurcated, curved outward, rami of bifurcation asymmetrical, dorsal ramus longer and thicker, ventral ramus slender and shorter; 2 subapical spines, dorsal process long and tapering to apex, lateral margins straight, directed ventrocephalad; ventral process constricted in the middle, curved ventrocephalad. Gonostyli (Fig. 2F–H) slender, curved apically, tapering into a process, T-shaped in ventral view.

Female terminalia. Terminalia as shown in Fig. 5A ventrally. Anal segment (Fig. 5C) 1.79 times longer than wide in dorsal view. Posterior vagina (Fig. 5B) elongate, with 4 sclerites in total, dorsal sclerite tapering at the end, median and ventral sclerites long, oval and trapezoidal, respectively, left side of terminal sclerite twist into angular process with straight lateral margins.

China (Guizhou) (Fig. 1).

The species name is derived from the Latin adjective “acerbus”, referring to dorsal process of the endosoma which is pointed on the left side.

This species is similar to Oecleopsis wuyiensis Guo, Wang & Feng, 2009, but differs from the latter in: (1) frons yellowish to blackish brown (frons black in O. wuyiensis); (2) ventral margin near base of periandrium without a spinose process (ventral margin near base of periandrium with a spinose process in O. wuyiensis); (3) dorsal process of endosoma directed ventrocephalad (dorsal process of endosoma directed dorsocephalad in O. wuyiensis); (4) ventral process of endosoma curved and rounded at apex (ventral process of endosoma straight and pointed in O. wuyiensis).

Holotype : China • ♂; Guizhou Province, Panxian County, Banqiao Town; 25°44'N, 104°39'E; sweeping, 2 July 2011; Zhi-Hua Fan leg.; IEGU. Paratype: 1♂, same collection data as for holotype; IEGU.

The salient features of the new species include: vertex (Fig. 3A, C) at least three times as long as broad; frons (Fig. 3D) yellowish brown, with brown spots; aedeagus (Fig. 3K–N) in total with 3 processes; spinose process near apex of periandrium on right side (Fig. 3K) long, half wide at base, half thinner at end; left side (Fig. 3L) apical process of endosoma bifurcated, rami long, approximately equal length; a subapical spine, lateral margins curved.

Figure 3. 

A–N Oecleopsis panxianensis sp. nov., male A habitus, dorsal view B habitus, lateral view C head and thorax, dorsal view D frons, ventral view E forewing F male terminalia, lateral view G gonostyli, inner lateral view H pygofer and gonostyli, ventral view I anal segment, dorsal view J anal segment, right lateral view K aedeagus, right side L aedeagus, left side M aedeagus, dorsal view N aedeagus, ventral view. Scale bars: 0.2 mm.

Total length: male 7.23–7.65 mm (n = 2).

Coloration. General color dark brown (Fig. 3A, B). Vertex blackish brown. Eyes brown, ocelli yellowish. Frons yellowish brown, with brown spots, carinae lighter; rostrum blackish brown. Pronotum grayish to blackish brown with carinae yellowish or light brown. Mesonotum dark brown, carinae brown. Forewings semitranslucent, light brown, with several brown markings, stigma yellowish brown. Hindwings semitransparent. Abdomen dark brown.

Head and thorax. Vertex (Fig. 3A, C) narrow, 3.23 times longer than wide. Frons (Fig. 3D) with distinct median carina, longer in middle line than wide at widest portion (about 1.67:1). Clypeus (Fig. 3D) with distinct median and lateral carinae. Rostrum elongate, surpassing hind-coxae. Pronotum (Fig. 3C) wider than maximum width of head (including eyes) (1.60:1), lateral and median carinae present. Mesonotum (Fig. 3C) about 6.92 times longer than pronotum in midline, with 5 carinae, distal part of median carina blurry. Forewings (Fig. 3E) slender, longer than maximal width (3.01:1), with 12 apical and 6 subapical cells; fork ScP+R distal to fork CuA₁+CuA₂; RP 3 branches, MP₁₊₂ 3 branches, and MP₃₊₄ 2 branches.

Male terminalia. Pygofer (Fig. 3F, H) symmetrical, in lateral view, lateral lobes triangularly extended caudally; in ventral view, dorsal margin concave and U-shaped, middle part narrow. Medioventral process triangular in ventral view. Anal segment (Fig. 3F, I, J) tubular, asymmetrical, widened towards apex in left side view; in right side view, left ventral margin convex and right ventral margin excavated near apex; 1.68 times longer than wide in dorsal view; anal style finger-like, beyond anal tube. Aedeagus (Fig. 3K–N) in total with 3 processes; spinose process near apex of periandrium on right side long, half wide at base, half thinner at end, directed cephalically, more than 1/2 length of periandrium; left side apical process of endosoma bifurcated, rami long, approximately equal length, dorsal ramus directed cephalad, ventral ramus directed ventrocephalad; a subapical spine, lateral margins curved, curved dorsad, apical margin rounded. Gonostyli (Fig. 3F–H) slender, curved apically, tapering into a process, constricted for about ¾ its length, T-shaped in ventral view.

China (Guizhou) (Fig. 1).

The new species is named after its the county in which it was collected.

This species is similar to Oecleopsis laminatus Zhi & Chen, 2018, but differs from the latter in: (1) spinose process near apex of periandrium long, half wide at the base, ½ thinner at end (spinose process near apex of periandrium long, smoothly tapering at the end in O. laminatus); (2) apical process of endosoma bifurcated at base (apical process of endosoma bifurcated at apex in O. laminatus); (3) left side near apex of endosoma with a spiniform process, curved dorsad (left side near apex of endosoma with a large laminal process, directed cephalad in O. laminatus).

Holotype : China • ♂; Sichuan Province, Dayi County, Xiling Town; 30°38'N, 103°14'E; sweeping, 20 July 2022; Sha-Sha Lv leg.; IEGU. Paratypes: China • 6♂♂4♀♀; Sichuan Province, Dayi County, Xiling Town; 30°38'N, 103°14'E; sweeping, 20 July 2022; Sha-Sha Lv, Lan Zhang, Yong-Jin Sui & Feng-E Li leg.; IEGU.

The salient features of the new species include: vertex (Fig. 4A, C) less than three times as long as broad; spinose process near apex of periandrium on right side (Fig. 4K) short and thick, finger-like; left side (Fig. 4L) apical process of endosoma bifurcated, rami short; two subapical spines long, dorsal process tapering toward the end, ventral process curved.

Figure 4. 

A–N Oecleopsis digitatus sp. nov., male A habitus, dorsal view B habitus, lateral view C head and thorax, dorsal view D frons, ventral view E forewing F male terminalia, lateral view G gonostyli, inner lateral view H pygofer and gonostyli, ventral view I anal segment, dorsal view J anal segment, right lateral view K aedeagus, right side L aedeagus, left side M aedeagus, dorsal view N aedeagus, ventral view. Scale bars: 0.2 mm.

Total length: male 5.8–6.4 mm (n = 7), female 6.8–7.5 mm (n = 5).

Coloration. General color grayish black (Fig. 4A, B). Vertex brown-black. Eyes dark brown, ocelli yellowish. Frons black, carinae yellowish brown; rostrum black. Pronotum brown-black with carinae yellowish or light brown. Mesonotum black, carinae brown. Forewings semitranslucent, yellowish brown, with several small brown markings, stigma brown. Hindwings semitransparent. Abdomen dark brown.

Head and thorax. Vertex (Fig. 4A, C) narrow, 2.41 times longer than wide. Frons (Fig. 4D) with distinct median carina, longer in middle line than wide at widest portion (about 1.45:1). Clypeus (Fig. 4D) with distinct median and lateral carinae. Rostrum elongate, surpassing hind-coxae. Pronotum (Fig. 4C) wider than maximum width of head (including eyes) (1.39:1), lateral and median carinae present. Mesonotum (Fig. 4C) about 7.17 times longer than pronotum in midline, with 5 carinae, distal part of median carina blurry. Forewings (Fig. 4E) slender, longer than maximal width (2.94:1), with 12 apical and 6 subapical cells; fork ScP+R distal to fork CuA₁+CuA₂; RP 3 branches, MP₁₊₂ 3 branches, and MP₃₊₄ 2 branches.

Male terminalia. Pygofer (Fig. 4F, H) symmetrical, in lateral view, lateral lobes triangularly extended caudally; in ventral view, dorsal margin concave and U-shaped, widened towards apex. Medioventral process triangular in ventral view. Anal segment (Fig. 4F, I, J) tubular, asymmetrical, widened towards apex in left side view; in right side view, left ventral margin convex and right ventral margin excavated near apex; 1.64 times longer than wide in dorsal view; anal style finger-like, beyond anal tube. Aedeagus (Fig. 4K–N) with 4 processes in total; spinose process near apex of periandrium on right side short and thick, directed dorsocephalad, finger-like, only a 1/4 length of periandrium; left side apical process of endosoma bifurcated, curved outward, rami short, dorsal ramus directed dorsad, ventral ramus directed ventrad; 2 subapical spines long, dorsal process tapering toward end, directed cephalad; ventral process curved, curved ventrad. Gonostyli (Fig. 4F–H) slender, curved apically, tapering into a process, curved portion near right angle, T-shaped in ventral view.

Female terminalia. Terminalia, viewed ventrally, are shown in Fig. 5D. Anal segment (Fig. 5F) 1.84 times longer than wide in dorsal view. Posterior vagina (Fig. 5E) elongate, with 4 sclerites in total, dorsal sclerite tapering at the end, median and ventral sclerites long, suboblong and slender, respectively, left side of terminal sclerite twist into thick finger-like process.

Figure 5. 

A–F female terminalia of Oecleopsis species A–C Oecleopsis acerbus sp. nov. D–F Oecleopsis digitatus sp. nov. A, D female terminalia, ventral view B, E posterior vagina, ventral view C, F anal segment, dorsal view. Scale bars: 0.2 mm.

China (Sichuan) (Fig. 1).

The species name is derived from the Latin adjective “digitatus”, referring to the finger-like spinose process near apex of periandrium on the right side.

This species is similar to Oecleopsis sinicus (Jacobi, 1944), but differs from the latter in: (1) MP₁₊₂ of forewing 3 branches (MP₁₊₂ of forewing 2 branches in O. sinicus); (2) rami of bifurcation asymmetrical, unequal in length (rami of bifurcation symmetrical, equal in length in O. sinicus); (3) spinose process near apex of periandrium finger-like on right side, directed dorsocephalad (spinose process near apex of periandrium awl-shaped on right side, directed ventrocephalad in O. sinicus).