Lobellina gladius, Hu & Jiang & Jiang, 2019
publication ID |
https://doi.org/ 10.11646/zootaxa.4712.1.5 |
publication LSID |
lsid:zoobank.org:pub:FDE1F7CF-A789-45B4-BC3F-AA254F91E04C |
DOI |
https://doi.org/10.5281/zenodo.5586700 |
persistent identifier |
https://treatment.plazi.org/id/01298007-8847-FFE8-FF42-F99DFAC9E0FF |
treatment provided by |
Plazi |
scientific name |
Lobellina gladius |
status |
sp. nov. |
Lobellina gladius sp. nov.
Figures 2, 4 View FIGURES 1–4 , 6 View FIGURES 5–6 , 10–14 View FIGURE 10 View FIGURES 11–14 , 16 View FIGURES 15–16 , 18, 20 View FIGURES 17–20 , Tables 4–5 View Table 4 View TABLE 5
Type material. Holotype: male, China, Hunan, Xinning county , Langshan National Geopark. Coordinates: 26.273767N, 110.732951E, alt. 770m, in forest of bamboo, leg. Ji-Gang Jiang, Cheng Jiang, Li-Ping Duan, 29.iv.2018 GoogleMaps . Paratypes: 5 females and 2 juveniles, about 30 specimens in alcohol, the same data as holotype, collection number as J2018042904. One female, subadult, and GoogleMaps 4 juvenile, Guangxi , Ziyuan county, Langshan National Geopark. Coordinates: 26.274416N, 110.732011E, alt. 685m, in forest of bamboo, leg. Ji-Gang Jiang, Cheng Jiang, Li-Ping Duan, 29.iv.2018 (J2018042903). Female and male, Guangxi GoogleMaps , Ziyuan county, Langshan National Geopark. Coordinates: 26.276824N, 110.730528E, alt. 510m, nearby the entrance of the Park, leg. Ji-Gang Jiang, Cheng Jiang, Li-Ping Duan, 29.iv.2018 (J2018042901). One male, Hunan GoogleMaps , Xinning county, Shunhuangshang National Nature Reserve, Coordinates : 26.450028N, 111.014716E, alt. 930m, in forest, leg. Ji-Gang Jiang, Cheng Jiang, Li-Ping Duan, 1.v.2018 (J2018050102). Type materials are housed in the Key Laboratory of Zoology , Hunan GoogleMaps University of Arts and Science ( HUAS), Changde, Hunan Province, China .
Diagnosis. Three pigmented eyes on head, mandible with six teeth, cephalic chaeta O present and including in tubercle Fr, cephalic tubercle Di not fused, non-cross type chaetotaxy on posterior area of head, cephalic lateral tubercle Dl, L and So independent respectively, Ant. I with 9 chaetae, Th. I with 4+4 tubercles, VT with 6–8 (usually 7) chaetae.
Description. Body length: holotype, male, 4.0 mm. Usually, males: 4.0– 4.4 mm, females: 3.5–4.8 mm, juveniles: 1.5–3.5 mm.
Body color. Red while living ( Fig. 2 View FIGURES 1–4 ) and white in alcohol ( Fig. 4 View FIGURES 1–4 ).
Chaetal morphology ( Fig. 6 View FIGURES 5–6 ). Dorsal ordinary chaetae of four types: Ml, Mc, Mcc and me. Macrochaetae Ml long, sheathed, smooth and with blunt tip, gladius shaped ( Fig. 6j View FIGURES 5–6 ), some Ml not sheathed and with pointed tip, such as F chaetae on head ( Fig.6k View FIGURES 5–6 ) and macrochaetae on Abd. VI ( Fig. 6l View FIGURES 5–6 ). Macrochaetae Mc similar to Ml morphologically, but shorter ( Fig. 6 View FIGURES 5–6 m–n). Macrochaetae Mcc morphologically similar to Mc and shorter than Mc ( Fig. 6o View FIGURES 5–6 ). Mesochaetae similar to ventral chaetae, thin, smooth, and pointed, with various length ( Fig. 6 View FIGURES 5–6 p–r, t). S-chaetae on terga thin, smooth, equal to Mc and longer than Mcc ( Fig. 6s View FIGURES 5–6 ).
Head ( Table 4 View Table 4 , Fig. 10 View FIGURE 10 ). Eyes 3+3, black ( Fig. 11 View FIGURES 11–14 ). Antenna 4-segmented ( Fig. 16 View FIGURES 15–16 ). Ant. I with 9 Chaetae. Ant. II with 9–11 Chaetae. Ant. III dorsally fused to Ant. IV. Two guard chaetae sgd and sgv present. Two short rods exposed in separate pit. Ant. IV dorsally with 8 thickened and curved sensilla, apical bulb trilobed. sensory organite (or) present. Ventral chaetotaxy of Ant. IV: ap with 7 bs and 3 miA, ca with 3 bs and 1 miA, cm with 2 bs and 2 miA, cp with 1 miA. On ventral side of Ant. III, Vi, Vc, Ve respectively with 3, 5, 4 chaetae.
Buccal cone weakly developed, labrum truncated, chaetal formula as 0/2, 2. Mandible with four apical teeth, one curved middle tooth and one basal tooth ( Fig. 12 View FIGURES 11–14 ). Maxilla crochet form ( Fig. 13 View FIGURES 11–14 ). Labium with 11 chaetae and no x ( Fig.18 View FIGURES 17–20 ). Group Vi with 6+6 chaetae ( Fig.18 View FIGURES 17–20 ). Groups Vea, Vem and Vep with 5, 2 and 2 chaetae respectively. Dorsal chaetotaxy of head as in Table 4 View Table 4 . and Fig. 10 View FIGURE 10 . Dorsal central area with 6 separate tubercles: 1 tubercle Cl, 2 An, 1 Fr and 2 Oc. Dorsal posterior area with 4 separate tubercles: 2 Di and 2 De. Line of chaetae Di2–De2 not crosses line Di1– De1 on head (non-cross type, Deharveng, 1983). Dorsal lateral area with 3 separate tubercles: Dl, L and So.
Thorax ( Table 5 View TABLE 5 & Fig. 10 View FIGURE 10 ). Th. I with 4+4 tubercles (Di, De, Dl and L). Th. II and Th. III with 4+4 tubercles respectively. Chaetotaxy of thorax and legs as in Table 2 View TABLE 2 . Unguis with a basal inner tooth, unguiculus absent. Chaeta M present on tibiotarsus.
Abdomen ( Table 5 View TABLE 5 & Fig. 10 View FIGURE 10 ). Abd.I–IV respectively with 4+4 tubercles. Abd. V dorsally with 3+3 tubercles, two tubercles Di separate from each other, tubercle De separate from Dl, tubercle L present, on ventral side. Abd. VI with 1 tubercle on each side. VT with 7+7 chaetae, sometimes 6+6 or 8+8. Furcular remnant with 4 chaetae ( Fig. 20 View FIGURES 17–20 ).
Etymology. The name of the species derives from the “ gladius ” shape of its macrochaetae.
Remarks. The new species can be separated from known species by the following characters: Th. I with 4+4 tubercles; tubercle Di with 3 chaetae on Abd. I–III respectively, VT with 6–8 chaetae (usually 7); non-crossed type chaetae on cephalic posterior area. Including the new species, sixteen species of genus Lobellina are known worldwide. Seven of them have O chaeta on cephalic tubercle Fr, of which, 4 with chaeta O free from the tubercle, and three species, i.e. L. nanjingensis , L.fusa and L. gladius sp. nov. with chaeta O included in tubercle Fr. The new species can be easily differentiated from the other two species of the last group by the following key.
Tubercle | Number and type of chaetae | Names of chaetae |
---|---|---|
Cl | 2 Ml 2 me | F G |
An | 1 Ml 1 Mc 1 Mcc or Mc 1 me or Mcc | B E C D |
Fr | 2 Mc 1 mcc or me | A O |
Oc | 1 Ml | Ocm |
2 Mc | Oca, Ocp | |
Di | 1 Mc 1me | Di1 Di2 |
De | 1 Mc 1 Mcc | De1 De2 |
Dl | 1 Mc+1 Mcc+2 me | Uncertain |
L | 2 Mc | Uncertain |
So | 2 Ml+2 Mc+6 me | Uncertain |
Terga | Legs | |||||||
---|---|---|---|---|---|---|---|---|
Di | De | Dl | L | Scx2 Cx | Tr | Fe | ||
Th. I | Mc | Mc | Mc | Ml | 0 3 | 6 | 13 | 19 |
Th. II Th. III Terga | 2Mc+me 2Mc+me | 2Mc+2me+s 2Mc+2me+s | 2Mc+Mcc+s+ms 3Mc+s | Ml+Mc+me Ml+Mc+me | 2 7 2 8 Sterna | 6 6 | 12 11 | 19 18 |
Abd. I Abd. II | 2Mc+me 2Mc+me | Mc+2me+s Mc+2me+s | 2Mc 2Mc | Ml+Mc+me Ml+Mc+me | VT: 7(6–8) Ve: 4, V1: 0 | |||
Abd. III Abd. IV Abd. V | 2Mc+me Mc+Mcc 2Mc+me | Mc+2me+s Mc+me+s s | 2Mc 2Mc Ml+2Mc+Mcc | Ml+Mc+me 2Ml+2Mc+2me Mc+2Mcc+3me | Ve: 4, Fu: 4, 0 mi Vei:3, Vec: 3, Vel: 3, Vl:6 Ag:2, Vl: 2 | |||
Abd. VI | ------------------- 4Ml+3me -------------------- | Ve: 14, An: 3 mi |
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.
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