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Fig. 16 in Unveiling the morphology of the Oriental rare monotypic ant genus Opamyrma YAMANE, BUI & EGUCHI, 2008 (Hymenoptera: Formicidae: Leptanillinae) and its evolutionary implications, with first descriptions of the male, larva, tentorium, and sting apparatus

Fig. 16: Distribution map of Opamyrma hungvuong. Type locality, record by CHEN & al. (2017), and new records by the preset study are indicated by circle, square, and stars, respectively.

Fig. 14 in Unveiling the morphology of the Oriental rare monotypic ant genus Opamyrma YAMANE, BUI & EGUCHI, 2008 (Hymenoptera: Formicidae: Leptanillinae) and its evolutionary implications, with first descriptions of the male, larva, tentorium, and sting apparatus

Fig. 14: Larva of Opamyrma hungvuong, nontype (AKY05vii17-06, China, Guangxi). (A) Scanning electron microscope (SEM) image of body in lateral view; (B) transmitted light microscopy image of head in dorsal view; (C) SEM image of head in frontal view; (D) SEM image of head in lateral view; (E) SEM image of head in ventral view; (F) SEM image of abdominal terminus in lateral view. Abbreviations: Atn = antenna; Gl = galea; Lbp = labial palp; Lbr = labrum; Mdb = mandible; Mxp = maxillary palp.

Fig. 13 in Unveiling the morphology of the Oriental rare monotypic ant genus Opamyrma YAMANE, BUI & EGUCHI, 2008 (Hymenoptera: Formicidae: Leptanillinae) and its evolutionary implications, with first descriptions of the male, larva, tentorium, and sting apparatus

Fig. 13: Male genitalia of Opamyrma hungvuong, nontype (Dai19iii2019-029, Son La, Vietnam). (A) genital capsule in dorsal view; (B) genital capsule in ventral view; (C) abdominal sternite IX in ventral view; (D) cupula in ventral view; (E) left paramere with basiventral part of right paramere and cupula, in unfolded outer view; (F) left volsella in lateral view; (G) left penisvalva in lateral view. Abbreviations: Bm = basimere; Cu = cupula; Cs = cuspis; Dg = digitus; Lp = lateral apodeme; Pv = penisvalva; Spl = spinescent lobe; Spc = spiculum; Tm = telomere; Va = valvura.

Fig. 11 in Unveiling the morphology of the Oriental rare monotypic ant genus Opamyrma YAMANE, BUI & EGUCHI, 2008 (Hymenoptera: Formicidae: Leptanillinae) and its evolutionary implications, with first descriptions of the male, larva, tentorium, and sting apparatus

Fig. 11: Opamyrma hungvuong male, nontype (Dai19iii2019-029, Son La, Vietnam). (A) head in full-face view; (B) head and mesosoma in lateral view; (C) mouthparts in anteroventral view; (D) head and mesosoma in dorsal view; (E) petiole in lateral view; (F) metasoma in lateral view; (G) petiole in ventral view; (H) metasoma in dorsal view. Abbreviations: Atp = anterior tentorial pit; Lbp = labial palp; Lbr = labrum; Mdl = mandalus; Mxp = maxillary palp; Nt = notauli; Pl = parapsidal line; Pv = penisvalva; Tm = telomere; Tsl = tergosternal line.

Fig. 3 in Unveiling the morphology of the Oriental rare monotypic ant genus Opamyrma YAMANE, BUI & EGUCHI, 2008 (Hymenoptera: Formicidae: Leptanillinae) and its evolutionary implications, with first descriptions of the male, larva, tentorium, and sting apparatus

Fig. 3: Maxillolabial complex of Opamyrma hungvuong worker, nontype (AKY05vii17-06, China, Guangxi). (A) Scanning electron microscope image of maxillolabial complex in ventral view, labrum removed; (B) right maxilla in outer view; (C) labium in lateral view; (D) labium in dorsal view. Abbreviations: Ams = anteromedian sclerite; Gcss = galeal crown's stout seta; Hyp = hypopharynx; Lbp = labial palp; Lcn = lacinia; Mxco = maxillary comb; Mxp = maxillary palp; Mxst = maxillary stipes; Prm = prementum; Sglb = subglossal brush.

Fig. 7 in Unveiling the morphology of the Oriental rare monotypic ant genus Opamyrma YAMANE, BUI & EGUCHI, 2008 (Hymenoptera: Formicidae: Leptanillinae) and its evolutionary implications, with first descriptions of the male, larva, tentorium, and sting apparatus

Fig. 7: Scanning electron microscope images of legs of Opamyrma hungvuong worker, nontype (AKY05vii17-06, China, Guangxi). (A) strigil of right proleg in anterior view; (B) calcar of strigil of right proleg in anterior view; (C) strigil of right proleg in posterior view; (D) distitarsus of right proleg in posterior view; (E) tibial spurs and basitarsus of right mesoleg in anterior view; (F) tibial spurs and basitarsus of right metaleg in posterior view; (G) pretarsal claws of right metaleg in posteroventral view; (H) tibial spurs of left metaleg in anterior view. Abbreviations: Ats = anterior spur; Ca = calcar; Pts = posterior spur; Ptb = protibia; Pbts = probasitarsus; Ptss = protibial stout seta; Mnb = manubrium; Mstb = mesotibia; Msbts = mesobasitarsus; Mttb = metatibia; Mtbts = metabasitarsus.

Fig. 12 in Unveiling the morphology of the Oriental rare monotypic ant genus Opamyrma YAMANE, BUI & EGUCHI, 2008 (Hymenoptera: Formicidae: Leptanillinae) and its evolutionary implications, with first descriptions of the male, larva, tentorium, and sting apparatus

Fig. 12: Male wings of Opamyrma hungvuong, nontype (Dai19iii2019-029, Son La, Vietnam). (A) forewing in dorsal view; (B) hind wing in dorsal view. Abbreviations: 1A = first anal vein; Bc = basal cell; C = costal vein; Cc = costal cell; Cu = cubital vein; Mc1 = marginal cell 1; R = radial vein; Rs = radial sector; Sbc = subbasal cell; Sc = subcostal vein; Sdc1 = subdiscal cell 1; Smc = submarginal cell.

Fig. 2 in Unveiling the morphology of the Oriental rare monotypic ant genus Opamyrma YAMANE, BUI & EGUCHI, 2008 (Hymenoptera: Formicidae: Leptanillinae) and its evolutionary implications, with first descriptions of the male, larva, tentorium, and sting apparatus

Fig. 2: Scanning electron microscope images of cephalic parts of Opamyrma hungvuong worker, nontype (AKY05vii17-06, China, Guangxi). (A) anterior part of head in frontal view; (B) cranium in ventral view; (C) right mandible in dorsal view; (D) right hypostomal process in lateral view; (E) left mandible in ventral view; (F) labrum in outer view. Abbreviations: Ctl = canthellus; Hysp = hypostomal process; Occ = occipital carina; Lbr = labrum; Lps = labral peg-like seta; Mdl = mandalus; Mps = mandibular peg-like seta; Pat = preapical tooth; Ptg = peritorular groove; Ptp = posterior tentorial pit; Sca = supraclypeal area.

Fig. 6 in Unveiling the morphology of the Oriental rare monotypic ant genus Opamyrma YAMANE, BUI & EGUCHI, 2008 (Hymenoptera: Formicidae: Leptanillinae) and its evolutionary implications, with first descriptions of the male, larva, tentorium, and sting apparatus

Fig. 6: Scanning electron microscope images of mesosoma of Opamyrma hungvuong worker, nontype (AKY05vii17-06, China, Guangxi). (A) whole mesosoma in lateral view; (B) anterior articulation of mesonotum in lateral view, prothorax removed; (C) whole mesosoma in dorsal view; (D) whole mesosoma in ventral view, all legs removed; (E) metapleuron and propodeum in lateral view; (F) prosternite in ventral view, propleurae and prolegs removed. Abbreviations: Mgo = metapleural gland orifice; Mlf = metapleural longitudinal flange; Msg = mesonotal groove; Mstp = mesosternal pit; Mtsp = metanotal spiracle; Pcc = procoxal cavity; Pdl = propodeal lobe.

Fig.10 in Unveiling the morphology of the Oriental rare monotypic ant genus Opamyrma YAMANE, BUI & EGUCHI, 2008 (Hymenoptera: Formicidae: Leptanillinae) and its evolutionary implications, with first descriptions of the male, larva, tentorium, and sting apparatus

Fig.10: Opamyrma hungvuong queen, nontype (Dai19iii2019-029, Son La, Vietnam). (A) head in full-face view; (B) body in lateral view; (C) head in ventral view; (D) head and mesosoma in dorsal view; (E) Scanning electron microscope image of mesosoma in lateral view; (F) Scanning electron microscope image (SEM) of meso- and metanotum in dorsal view; (G) forewing in dorsal view; (H) hindwing in dorsal view. Abbreviations: Axa = axilla; Axu = axillula; Msg = mesonotal groove; Occ = occipital carina; Pgr = postgenal ridge; Pl = parapsidal line; Prx = preaxilla; Rs = radial sector; Scs = scutoscutellar sulcus.

Fig. 8 in Unveiling the morphology of the Oriental rare monotypic ant genus Opamyrma YAMANE, BUI & EGUCHI, 2008 (Hymenoptera: Formicidae: Leptanillinae) and its evolutionary implications, with first descriptions of the male, larva, tentorium, and sting apparatus

Fig. 8: Scanning electron microscope images of metasoma of Opamyrma hungvuong worker, nontype (AKY05vii17-06, China, Guangxi). (A) petiole in lateral view; (B) petiole in ventral view; (C) helcium in anterior view; (D) helcium in ventral view; (E) pretergite of abdominal segment IV in dorsal view; (F) gaster in lateral view; (G) gaster in ventral view. Abbreviations: Absg = abdominal segment; Prsn = presternite; Prtg = pretergite; Ptlt = petiolar laterotergite; Ptsn = petiolar sternite; Tss = tergosternal suture.

FIGURES 10–12 in Opamyrma hungvuong, a new genus and species of ant related to Apomyrma (Hymenoptera: Formicidae: Amblyoponinae)

FIGURES 10–12. Opamyrma hungvuong gen. & sp.n., holotype (worker) — 10, petiole in profile (tss: tergo-sternal suture); 11, gaster in profile (abs: abdominal sternite, absg: abdominal segment, abt: abdominal tergite, ps: presternite); 12, gaster in dorsal view.

FIGURES 7–9 in Opamyrma hungvuong, a new genus and species of ant related to Apomyrma (Hymenoptera: Formicidae: Amblyoponinae)

FIGURES 7–9. Opamyrma hungvuong gen. & sp.n., holotype (worker) — 7, mesosoma and petiole in dorsal view; 8, tibial spurs of left hind leg in anterior view (ats: anterior spur, pts: posterior spur); 9, pretarsal claws of left hind leg.

FIGURES 1–3 in Opamyrma hungvuong, a new genus and species of ant related to Apomyrma (Hymenoptera: Formicidae: Amblyoponinae)

FIGURES 1–3. Opamyrma hungvuong gen. & sp.n., holotype (worker) — 1, body in profile; 2, head in full-face view (as-II: antennal segment 2); 3, anterior part of head in anterodorsal view (alc: anterolateral corner, lpd: peg-like denticles on labrum, mtl: mandibular tooth 1, pcc: posterior carina of clypeus, trl: trulleum).

FIGURES 4–6 in Opamyrma hungvuong, a new genus and species of ant related to Apomyrma (Hymenoptera: Formicidae: Amblyoponinae)

FIGURES 4–6. Opamyrma hungvuong gen. & sp.n., holotype (worker) — 4, head in profile (poc: preoccipital carina); 5, left antenna and left mandible in outer view; 6, mesosoma in profile (msf: mesosomal furrow).

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Fig. 15 in Unveiling the morphology of the Oriental rare monotypic ant genus Opamyrma YAMANE, BUI & EGUCHI, 2008 (Hymenoptera: Formicidae: Leptanillinae) and its evolutionary implications, with first descriptions of the male, larva, tentorium, and sting apparatus

Fig. 15: Scanning electron microscope images of larval mouthparts and prothoracic surface of Opamyrma hungvuong, nontype (AKY05vii17-06, China, Guangxi). (A) left maxilla in dorsal view; (B) labrum in ventral view; (C) labium in ventral view; (D) cuticular spinules on prothorax. Abbreviations: Gl = galea; Lbp = labial palp; Lbr = labrum; Mdb = mandible; Mxp = maxillary palp.

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Fig. 4 in Unveiling the morphology of the Oriental rare monotypic ant genus Opamyrma YAMANE, BUI & EGUCHI, 2008 (Hymenoptera: Formicidae: Leptanillinae) and its evolutionary implications, with first descriptions of the male, larva, tentorium, and sting apparatus

Fig. 4: Tentorium of Opamyrma hungvuong worker, nontype (AKY05vii17-06, China, Guangxi). (A) anterior part of dorsal sclerite of cranium in dorsal view; (B) part of dorsal sclerite of cranium around right antennal socket with anterior part of tentorium, in inner ventral view; (C) part of ventral sclerite of cranium with posterior part of tentorium in inner dorsal view; (D) right half of tentorium in dorsal view (lacking posterior tentorial arm). Abbreviations: Ata = anterior tentorial arm; Atp = anterior tentorial pit; Ct = corpotendon; Dta = dorsal tentorial arm; Ep = external plate; Ip = internal plate; Lclp = lateral portion of clypeus; Mdb = mandible; Occ = occipital carina; Pgr = postgenal ridge; Pta = posterior tentorial arm; Ptg = peritorular groove; Ptp = posterior tentorial pit; Tb = tentorial bridge.

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Fig. 1 in Unveiling the morphology of the Oriental rare monotypic ant genus Opamyrma YAMANE, BUI & EGUCHI, 2008 (Hymenoptera: Formicidae: Leptanillinae) and its evolutionary implications, with first descriptions of the male, larva, tentorium, and sting apparatus

Fig. 1: General habitus of Opamyrma hungvuong worker, nontype (AKY05vii17-06, China, Guangxi). (A) head in full-face view; (B) head in anteroventral view; (C) body in lateral view; (D) body in dorsal view. Abbreviations: Occ = occipital carina; Lbr = labrum; Pgr = postgenal ridge.