Allocota bicolor Shi & Liang, 2013

Shi, Hongliang, Zhou, Hongzhang & Liang, Hongbin, 2013, Taxonomic synopsis of the subtribe Physoderina (Coleoptera, Carabidae, Lebiini), with species revisions of eight genera, ZooKeys 284, pp. 1-129 : 57-59

Allocota bicolor Shi & Liang sp. n. Habitus: Figs 17 52 male genitalia: Figs 84 105 female genitalia: Figs 119 134

Type material.

Holotype (IZAS): male, body length = 8.3 mm, pin mounted, genitalia dissected and deposited in microvial pinned under specimen, "China, Yunnan, Ruili / Dengga to Mafengshan; / 23.95285°N, 97.59808°E / 23.94485°N, 97.55647°E "; "927-1207m; 2009.VIII.10 / SHI H. L. leg.; Beating / Inst. of Zool., CAS / 瑞丽市等噶至麻风山 "; “IOZ(E)1891845”; "HOLOTYPE ♂/ Allocota bicolor/ new species / Des. SHI H. L. 2011" [red label][Figs 52, 84, 105]. Paratypes (10 males, 13 females): Yunnan: 2 males (IZAS), "China, Yunnan, Ruili / Dengga to Mafengshan; / 23.95285°N, 97.59808°E / 23.94485°N, 97.55647°E "; "927-1207m; 2009.VIII.10 / SHI H. L. leg.; Beating / Inst. of Zool., CAS / 瑞丽市等噶至麻风山 "; "PARATYPE/ Allocota bicolor/ new species / Des. SHI H. L. 2011" [red label]. 1 male 2 females (IZAS) [the male preserved in 100% alcohol, females pinned], "CHINA, Yunnan, Ruili, / Dengga to Sepeng bridge; / 23.95285°N, 97.59808°E / 23.97518°N, 97.56944°E "; "927-807m; 2009.VIII.11 / SHI H. L. leg., Beating; / Inst. of Zool., CAS / 瑞丽市等噶至色蓬桥”; "PARATYPE/ Allocota bicolor/ new species / Des. SHI H. L. 2011" [red label] [Fig. 134]. 1 female (HBUM), "2005-VIII-3 / 云南瑞丽市勐秀 / 2150m 毛本勇 / 河北大学博物馆” [2005-VIII-3 / Yunnan, Ruili, Mengxiu / 2150m Mao Benyong leg. / Hebei University Museum]; "PARATYPE/ Allocota bicolor/ new species / Des. SHI H. L. 2011" [red label]. 1 male 1 female (CBW), "CHINA, Yunnan Prov., / Xishuangbanna, Menglun / Reserve, west part. 570m / 2009.VI.2; BI Wenxuan leg."; "PARATYPE/ Allocota bicolor/ new species / Des. SHI H. L. 2011" [red label]. Guangdong: 1 female (IZAS), "CHINA, Guangdong Prov., / Shixing County, Mt. Che- / baling, Xianrendong; / 24.73478°N, 114.20727°E "; "508m; 2008.VII.23 / vegetation beating; / LIANG Hongbin leg. / Ins. of Zool., CAS"; "PARATYPE/ Allocota bicolor/ new species / Des. SHI H. L. 2011" [red label][Fig. 119]. 1 female (IZAS) "CHINA, Guangdong / Shixing, Chebaling / Chayuan (Tea Garden) / N24.72320, E114.25640"; "354m, 2008.7.27 day / Liang H. B.; vegetation; Institute of Zoology / 广东始兴县车八岭”; "PARATYPE/ Allocota bicolor/ new species / Des. SHI H. L. 2011" [red label]. Hainan: 1male, 1 female (IZAS), "CHINA, Hainan, / Ledong, Jianfengling, / 5th area; beating / 18.73263°N, 108.87023°E "; "978m; 2009.XII.3; Day / Lin Meiying coll. / Inst. of Zoology, CAS / 尖峰岭核心区五区”; "PARATYPE/ Allocota bicolor/ new species / Des. SHI H. L. 2011" [red label][Fig. 17]. 1 male (IZAS) [preserved in 100% alcohol], "CHINA, Hainan, Wuzhi- / shan Mt., way to the peak; / beating; / 18.90161°N, 109.68844°E "; "997m; 2009.XI.28 / LIANG Hongbin leg. / Inst. of Zool., CAS / 海南五指山主峰”; "PARATYPE/ Allocota bicolor/ new species / Des. SHI H. L. 2011" [red label]. Vietnam: 1 female (NNML), "Museum Leiden / Viet Nam (Dak Lak Prov.) Chu / Yang Sin N. P.: 6-8 km S of / head quarters: S of Dam / construction-site. 2-10.vi.2007. / Leg. C. van Achterberg, R. de / Vries & E. Gasso Miracle"; "primary evergreen forest near / stream; in malaise traps; 800- / 820m, 12°26'26.3"N / 108°19'58.5"E". Laos: 2 males, 2 females (NHMB), "LAOS-NE, Houa Phan prov., / 20°11-13'N 103°59'-104°01'E, / Ban Saluei - Phou Pane Mt., / 9.-17.vi.2009, 1300-1900 m, / Michael Geiser leg."; "NHMB Basel, NMPC Prague / Laos 2009 Expedition: / M. Brancucci, M. Geiser, / Z. Kraus, D. Hauck, V. Kubáň”; "PARATYPE/ Allocota bicolor/ new species / Des. SHI H. L. 2011" [red label]. 2 males, 2 females (NHMB), "LAOS-NE, Houa Phan prov., / ~20°13'N, 104°00'E, / PHOU PANE Mt., / 1.-16.vi.2009, 1350~1500 m, / M. Brancucci leg."; "NHMB Basel, NMPC Prague / Laos 2009 Expedition: / M. Brancucci, M. Geiser, / Z. Kraus, D. Hauck, V. Kubáň”; "PARATYPE/ Allocota bicolor/ new species / Des. SHI H. L. 2011" [red label]. Thailand: 1 female (CMB), "Thailand, Prov. Nan. Bo Khua/ 19.4-7.5.2004/ Moravec Petr".

Diagnosis.

Elytra metallic blue, disc without reddish patch; metasternum and abdomen not darker than prosternum; front angles of pronotum with long setae ( Fig. 153 ); elytral 7th interval with setigerous pores; protibiae with cleaning spur present but very fine ( Fig. 141 ); internal sac of aedeagus without setose area near middle, apex of secondary flagellum simple.

From dorsal color, this new species resembles Allocota viridipennis Motschulsky or Allocota cyanipennis Heller, but it is actually more isolated in the genus than it appears. The new species can be distinguished from the other three species of the genus in having: (1) protibiae with cleaning spur present, but absent in other species; (2) males with adhesive hairs rudimentary on first three mesotarsomeres, but well developed on 1st and 2nd mesotarsomeres in other species; (3) males with terminal labial palpomeres truncate, but fusiform in the other species; (4) setae on pronotal front angles longer than in other species; (5) internal sac of aedeagus without setose area near middle.

Description.

Body length 7.5-8.7 mm; head and pronotum vivid orange red; mouthparts yellowish brown, palpomeres dark brown, apex of terminal labial and maxillary palpomeres yellow; base of 1st antennomere yellowish, remaining part of 1st antennomere and 2nd to 4th antennomeres piceous, gradually turning to brownish after 5th antennomere; elytra metallic blue, elytral suture and lateral margins metallic; legs with most parts much darker than pronotum, coxae, trochanters and base of femora yellow, apical part of femora and tibiae nearly black, tarsomeres usually dark brown; ventral side of head and prosternum almost the same color as dorsal side; metasternum and abdomen yellowish, not darker than prosternum. Head glabrous, without punctures, microsculpture indistinct; males with terminal labial palpomeres expanded at apex, truncate but not strongly securiform. Pronotum glabrous,cor diform, widest at about apical one-third; ratio PW/PL 1.30 to 1.40; pronotal base briefly but distinctly lobed; disc moderately convex, microsculpture indistinct, without punctures; front angles with long setae, distinctly longer than other species of the genus; hind angles with a few secondary setae; lateral explanate areas moderately wide, without punctures; lateral margins slightly expanded in middle, usually slightly sinuate before hind angles; hind angles usually rounded or subrectangular, not sharp or projected ( Fig. 157 ), but in two females from Guangdong, hind angles sharp, acute, distinctly projected ( Fig. 156 ); basal foveae very shallow, without punctures; median line very fine, indistinct; disc finely transversely rugose. Elytra with striae slightly sulcate, finely punctate; 7th, 8th striae and base of the remaining striae nearly unimpressed; intervals not distinctly convex, without accessory setae; microsculpture absent; 3rd, 5th and 7th intervals with four to ten setigerous pores, their positions variable, most of them on center of interval; lateral margins with some short and fine but distinct setae. Legs. Protibiae with cleaning spur present, but fine and short ( Fig. 141 ); males with adhesive hairs rudimentary (two rows, weakly present near apex) on first three mesotarsomeres. Male genitalia with median lobe of aedeagus stout, apex slightly bent to right side in dorsal view, right margin not curved before apical lamella; apical lamella placed on right side, triangular, length equal to its basal width, apex not sharp; internal sac without setose area near middle; secondary flagellum reaching apical orifice, apex simple; trumpet-form expansion with ventral margin not expanded ( Fig. 84 ). Female genitalia. Spermatheca straight, tubiform, moderately long; apical half slightly widened, apical third with distinct ring-sculpture; spermathecal gland inserted near middle of spermatheca, not branched, fine, base not distinctly thickened, much longer than spermatheca ( Fig. 134 ). Apical segment of ovipositor very short, slightly longer than width; outer margin straight; inner margin curved, with fine setae on apical half; membranous extension fine, placed on the outer side of apex ( Fig. 119 ).

Distribution

( Map 6 ). China (Yunnan, Guangdong, Hainan), Vietnam, Laos, Thailand.

Etymology.

The name " bicolor " is a Latin noun, referring to the sharp contrast between the orange head and pronotum and the metallic blue elytra.

Geographical variation.

Two female paratypes coming from Guangdong are slightly different from the holotype from Yunnan in pronotal shape. Their pronotum hind angles are sharper and more projected, and lateral margins are more strongly sinuate before hind angles ( Fig. 156 ) than in the holotype ( Fig. 157 ). But the other characters are the same, and we consider they are just geographical variations.

Remarks.

The new species is a special lineage in Allocota , and could be the most primitive one of the genus, based on some primary characters such as presence of cleaning spur on protibiae. Moreover, the female reproductive system and male secondary characters (labial palpomeres, adhesive hairs on tarsomeres, setae on terminal sternum) are similar to Physodera eschscholtzii , but they are totally different in ovipositor. Similarity between these two species may also suggest the affinity between genera Allocota and Physodera .

Figures

Map 6. Known distribution of genus Allocota: ● Allocota aurata (Bates) ★ Allocota cyanipennis Heller ▲ Allocota viridipennis Motschulsky ◆ Allocota bicolor sp. n.

Figure 84. Median lobe of male genitalia, right-lateral, ventral, left-lateral, dorsal views of Allocota bicolor sp. n., holotype.

Figures 13 - 18. Habitus, scale bars = 2.0 mm: 13 Diamella cupreomicans (Oberthuer), a specimen from Hainan 14 Allocota viridipennis Motschulsky, a specimen from Java 15 Allocota viridipennis Motschulsky, a specimen from Singapore 16 Allocota cyanipennis Heller, a specimen from Philippines 17 Allocota bicolor sp. n., a paratype from Hainan 18 Allocota aurata (Bates), a specimen from Japan.

Figures 49 - 54. Type materials, scale bars = 2.0 mm: 49 Lectotype of Allocota caerulea Andrewes [= Allocota viridipennis Motschulsky] 50 Holotype of Allocota cyanipennis Heller 51 Lectotype of Taicona aurata Bates [= Allocota aurata (Bates)] 52 Holotype of Allocota bicolor sp. n. 53 Syntype of Dasiosoma testaceum Britton 54 Holotype of Dasiosoma hirsutum Basilewsky [= Dasiosoma basilewskyi nom. n.].

Figures 95 - 110. Left and right parameres of male genitalia, scale bars = 0.2 mm: 95 Paraphaea binotata (Dejean), a specimen from Guangxi 96 Paraphaea minor sp. n., holotype 97 Anchista brunnea (Wiedemann), a paralectotype of picea Chaudoir 98 Anchista pilosa sp. n., holotype 99 Metallanchista laticollis sp. n., holotype 100 Physodera amplicollis van de Poll, a specimen from Taiwan 101 Diamella cupreomicans (Oberthuer), a specimen from Yunnan 102 Diamella arrowi (Jedlicka), holotype 103 Allocota aurata (Bates), a specimen from Tonkin 104 Allocota aurata (Bates), a specimen from Shaanxi 105 Allocota bicolor sp. n., holotype 106 Lachnoderma asperum Bates, a specimen from Taiwan 107 Dasiosoma ivorense Basilewsky, a paratype from Cote d'Ivoire 108 Dasiosoma quadraticolle sp. n., holotype 109 Orionella kathmanduensis (Kirschenhofer), a specimen from Nepal 110 Endynomena pradieri (Fairmaire), a specimen from Fujian.

Figures 132 - 137. Internal reproductive system of females, scale bars = 0.2 mm: 132 Diamella cupreomicans (Oberthuer), a specimen from Yunnan 133 Allocota aurata (Bates), a specimen from Shaanxi 134 Allocota bicolor sp. n., a paratype from Yunnan 135 Lachnoderma asperum Bates, a specimen from Zhejiang 136 Dasiosoma maindroni (Tian & Deuve), a specimen from Tonkin 137 Dasiosoma hirsutum (Bates), lectotype.

Figures 138 - 157. Characters of Physoderina. 138 - 139 Internal reproductive system of females, scale bars = 0.2 mm: 138 Dasiosoma quadraticolle sp. n., a paratype from Yunnan 139 Orionella lewisii (Bates), a specimen from Zhejiang. 140 - 142 Right protibia, ventral view, showing the reduction of cleaning spur, scale bars = 0.5 mm: 140 Allocota aurata (Bates) (cleaning spur absent) 141 Allocota bicolor sp. n. (cleaning spur fine) 142 Diamella cupreomicans (Oberthuer) (cleaning spur well developed). 143 - 146 Terminal sternum, showing the setae and male emargination, scale bars = 0.5 mm: 143 Paraphaea binotata (Dejean), male (deeply emarginate, one seta on each side) 144 Paraphaea binotata (Dejean) (straight, two setae on each side), female 145 Allocota aurata (Bates), male (moderately emarginate, two setae on each side) 146 Allocota aurata (Bates), female (straight, two setae on each side, right side unusually with an additional seta). 147 - 148 Umbilical series of 9 th interval, right elytron, scale bars = 0.5 mm: 147 Paraphaea binotata (Dejean) (umbilical series placed in one row) 148 Metallanchista laticollis sp. n. (umbilical series placed in two rows). 149 - 150 Head, showing the different shape of mandibles, scale bars = 0.5 mm: 149 Paraphaea formosana (Jedlicka) (mandibles moderately widen) 150 Allocota bicolor sp. n. (mandibles strongly widen). 151 - 153 Pronotum, showing the different length of setae on front angle, scale bars = 0.5 mm: 151 Allocota viridipennis Motschulsky, (setae short and fine) 152 Allocota cyanipennis Heller, (setae relative long) 153 Allocota bicolor sp. n., (setae very long). 154 - 155 Pronotum, showing the difference on lateral margin, scale bars = 0.5 mm: 154 Anchista fenestrata fenestrata (Schmidt-Goebel), (lateral margin slightly angulated in middle) 155 Paraphaea formosana (Jedlicka), (lateral margin completely rounded in middle). 156 - 157 Pronotal hind angle, showing the geographical variation in Allocota bicolor sp. n., scale bars = 0.2 mm: 156 Allocota bicolor sp. n., a specimen from Guangdong, (hind angle sharp) 157 Allocota bicolor sp. n., holotype from Yunnan, (hind angle slightly rounded).

Figures 111 - 125. Left ovipositors of females, ventral view, scale bars = 0.2 mm: 111 Paraphaea binotata (Dejean), a specimen from Guangxi 112 Paraphaea minor sp. n., a paratype from Hainan 113 Paraphaea philippinensis (Jedlicka), holotype 114 Anchista fenestrata fenestrata (Schmidt-Goebel), a specimen from Nepal 115 Physodera dejeani Eschscholtz, a specimen from Yunnan 116 Physodera eschscholtzii Parry, a specimen from Yunnan 117 Diamella cupreomicans (Oberthuer), a specimen from Yunnan 118 Allocota aurata (Bates), a specimen from Shaanxi 119 Allocota bicolor sp. n., a paratype from Guangdong 120 Lachnoderma asperum Bates, a specimen from Zhejiang 121 Dasiosoma bellum (Habu), a specimen from Guangdong 122 Dasiosoma maindroni (Tian & Deuve), a specimen from Tonkin 123 Dasiosoma quadraticolle sp. n., a paratype from Yunnan 124 Orionella lewisii (Bates), a specimen from Zhejiang 125 Endynomena pradieri (Fairmaire), a specimen from Taiwan.