Laimoloima tandani, Gustafsson & Adam & Zou, 2022

Gustafsson, Daniel R., Adam, Costică & Zou, Fasheng, 2022, One new genus and three new species of the Penenirmus-complex (Phthiraptera Ischnocera) from China, with resurrection of Picophilopterus Ansari, 1947, Zootaxa 5087 (3), pp. 401-426 : 412-414

publication ID

https://doi.org/ 10.11646/zootaxa.5087.3.1

publication LSID

lsid:zoobank.org:pub:0CE51AC4-E75F-43DE-B9F5-56247B75F394

DOI

https://doi.org/10.5281/zenodo.5826916

persistent identifier

https://treatment.plazi.org/id/03AB87B6-DF68-EE0F-29F7-2221FEC3FECE

treatment provided by

Plazi

scientific name

Laimoloima tandani
status

sp. nov.

Laimoloima tandani new species

( Figs 10–11 View FIGURES 10–11 , 14 View FIGURES 14–15 , 16–17, 20 View FIGURES 16–21 )

Type host. Psilopogon virens virens (Boddaert, 1783) —great barbet ( Megalaimidae ).

Type locality. Shunhuangshan , Xinning Village, Chaoyuan County, Hunan Province, China .

Diagnosis. Sharing the same position of mts1 near mts2 would suggest that Laimoloima tandani , L. ruiliensis , and L. zeylanica are more closely related to each other than to L. rafflesi . Further, the shape of the male endomere of L. tandani ( Figs 15–16 View FIGURES 14–15 View FIGURES 16–21 ) is more similar to that of L. zeylanica than to that of L. ruiliensis ( Figs 17–18 View FIGURES 16–21 ). Laimoloima tandani can be separated from L. zeylanica by the following characters: (1) dorsal anterior plate gently rounded posteriorly in L. zeylanica , but extended posteriorly in L. tandani ( Fig. 14 View FIGURES 14–15 ), (2) preantennal area proportionately slightly shorter and broader in L. tandani ( Fig. 14 View FIGURES 14–15 ) than in L. zeylanica , (3) anterior lobes of male endomere of different shapes, and proportionately larger in L. tandani ( Fig. 16 View FIGURES 16–21 ) than in L. zeylanica , (4) parameres stouter in L. tandani ( Figs 15–16 View FIGURES 14–15 View FIGURES 16–21 ) than in L zeylanica , (5) meso- and metasternum each with two setae on each side in L. zeylanica , but each with one seta on each side in L. tandani ( Figs 10–11 View FIGURES 10–11 ), (6) female tergopleurite II with two tergocentral setae on posterior margin in L. tandani ( Fig. 11 View FIGURES 10–11 ), but with one seta in L. zeylanica , (7) female tergopleurite VIII with one tergocentral seta in L. tandani ( Fig. 11 View FIGURES 10–11 ), but with two setae in L. zeylanica .

Description. Both sexes. Head rounded trapezoidal ( Fig. 14 View FIGURES 14–15 ), frons broad and slightly concave, lateral margins of preantennal head slightly concave. Dorsal anterior plate roughly triangular, longer than wide. Dorsal preantennal suture diffuse posterior to ads, and illustrated approximately. In both specimens examined, the dorsal preantennal suture extends posteriorly from ads; this may be an artifact of mounting but, as it is similar in both specimens, we illustrated it as described. Marginal carina broad. Head chaetotaxy as in Fig. 14 View FIGURES 14–15 ; chaetotaxy of antennae as in Figs 14a–b View FIGURES 14–15 . Dorsal postantennal suture present, widened around aperture of pns. Gular plate with extensive rugose area centrally. Thoracic and abdominal segments and chaetotaxy as in Figs 10–11 View FIGURES 10–11 ; sternal plates lightly sclerotised, and not illustrated.

Male. Subgenital plate lightly sclerotised, and not illustrated. Tergopleurites III–VI each with three tergocentral setae on each side; tergopleurite VII with two tergocentral setae on each side. Anterior end of basal apodeme diffuse, and not illustrated; distal section with more or less parallel lateral margins, but bulging lateral margins distally ( Fig. 16 View FIGURES 16–21 ). Endomere longer than wide, with prominent rounded antero-lateral lobes ventrally and pointed postero-lateral lobes. Endomeral chaetotaxy as in Figs 16–17 View FIGURES 16–21 . Distal endomere asymmetrical in one examined specimen. Parameres short and broad; pst1–2 as in Fig. 17 View FIGURES 16–21 .

Female. Subgenital plate weakly sclerotised, and here illustrated approximately ( Fig. 20 View FIGURES 16–21 ). Vulval margin with 14–19 long, slender setae marginally and 9–11 long, stout setae submarginally on each side; 1–2 macroseta associated with subgenital plate on each side, and 5–7 short, slender setae on each side in area between subgenital plate and vulval margin. Subvulval plates diffuse distally in one examined female, and illustrated approximately.

Type material. Ex Psilopogon virens virens : Holotype ♂, Shunhuangshan , Xinning Village, elev. 814–855 m, Chaoyuan County, Hunan Province, China, 31 Aug. 2018, X. Chu & L. Lei, bird J3634, GD-PHTH-00139 ( IZGAS). Paratype: 1♀, same data as holotype, GD-PHTH-00140 ( IZGAS) .

Etymology. The species epithet honours the late Bhup Kishore Tandan (formerly at the University of Lucknow, India). In our opinion, Tandan was one of the greatest phthirapterists of the 20 th century, and his published illustrations and descriptions of, especially, Asian chewing louse taxa should be considered a benchmark to strive toward by all chewing louse taxonomists.

Remarks. Since the holotype has one antenna medianly distorted and the other with flagellomeres I–III fused ( Fig. 14 View FIGURES 14–15 ), we provide illustrations of the female antennae ( Figs 14a–b View FIGURES 14–15 ) to depict the chaetotaxy of the antennae of B. tandani accurately, which is indistinguishable from that of males of B. ruiliensis ; this suggests that there may be no differences between the antennal chaetotaxy of males of the two species. Also, some head and abdominal setae are broken on both sides of the holotype, hence they are illustrated approximately, based on the length of the same seta in the female.

IZGAS

Georgian Academy of Sciences, Insititute of Zoology

Kingdom

Animalia

Phylum

Chordata

Class

Aves

Order

Piciformes

Family

Megalaimidae

Genus

Laimoloima

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