The ischnoceran chewing lice (Phthiraptera: Ischnocera) of bulbuls (Aves: Passeriformes: Pycnonotidae), with descriptions of 18 new species Author Gustafsson, Daniel R. 8D918E7D-07D5-49F4-A8D2-85682F00200C Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Guangdong Public Laboratory of Wild Animal Conservation and Utilization, Institute of Zoology, Guangdong Academy of Sciences, Guangzhou, China. Department of Veterinary Sciences, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences, Kamycka 129, 165 00 Prague 6, Czech Republic. School of Biological Sciences, University of Utah, 257 S. 1400 E., Salt Lake City, Utah, 84112, USA. kotatsu@fripost.org Author Najer, Tomas 08A25BDD-8CCD-4709-9A57-7CE235D473C7 najer@af.czu.cz,tomas.najer@gmail.com Author Zou, Fasheng 9D1BB50D-CD19-4332-8854-4D0EA411342C Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Guangdong Public Laboratory of Wild Animal Conservation and Utilization, Institute of Zoology, Guangdong Academy of Sciences, Guangzhou, China. Department of Veterinary Sciences, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences, Kamycka 129, 165 00 Prague 6, Czech Republic. School of Biological Sciences, University of Utah, 257 S. 1400 E., Salt Lake City, Utah, 84112, USA. zoufs@giz.gd.cn Author Bush, Sarah E. 87DAE296-C04F-4DA5-82A9-AC2715A065F8 dovelouse@gmail.com text European Journal of Taxonomy 2022 2022-03-09 800 1 88 http://dx.doi.org/10.5852/ejt.2022.800.1683 journal article 55869 10.5852/ejt.2022.800.1683 b4506300-8a4a-45f0-bc34-ec2eb31dfc92 2118-9773 6358666 213B577F-867D-4ECD-AD2C-48ACA71801B5 Guimaraesiella lorica sp. nov. urn:lsid:zoobank.org:act: 098F18CC-7E2C-4772-B9FD-A71392214857 Figs 22–28 Diagnosis Guimaraesiella lorica sp. nov. is most similar to Guimaraesiella caligogularis sp. nov. , with which it shares the following characters: male tergopleurites IV–V without aps , but tergopleurite VI with aps ( Figs 22 , 36 ); male abdominal segment VI with 3 ps on each side ( Figs 22 , 36 ); proximal mesosome trapezoidal, constricted distally ( Figs 27 , 41 ); female abdominal segment IV with 1 ps on each side and segment V with 2 ps on each side ( Figs 23 , 37 ). These two species can be separated by the following characters: dorsal preantennal suture does not reach lateral margin of head in Gu. lorica sp. nov. ( Fig. 24 ) but reaches lateral margin of head in Gu. caligogularis sp. nov. ( Fig. 38 ); male abdominal segment V with 1 ps on each side in Gu. caligogularis sp. nov. ( Fig. 36 ), but with 2 ps on each side in Gu. lorica sp. nov. ( Fig. 22 ); proximal mesosome more constricted distally in Gu. lorica sp. nov. ( Fig. 27 ) than in Gu. caligogularis sp. nov. ( Fig. 41 ); distal mesosome more broadly rounded in Gu. caligogularis sp. nov. ( Fig. 41 ) than in Gu. lorica sp. nov. ( Fig. 27 ); ventral sclerite slender with thickening in proximal end in Gu. lorica sp. nov. ( Fig. 27 ), but generally massive without such thickening in Gu. caligogularis sp. nov. ( Fig. 41 ). Etymology The species name is derived from the Latin ‘ loricus ’ for ‘corselet’, referring to the distinct narrowing of the mesosome. Material examined Holotype ( ex Hypsipetes leucocephalus nigerrimus [as H. madagascariensis nigerrimus ] ) TAIWAN • ♂ ; Liu Kuei ; no date; T.C. Maa leg.; TMT 1562–1567; NHML . Paratypes TAIWAN • 1 ♂ , 1 ♀ ; same collection data as for holotype; UMSP • 1 ♀ ; Puli , Nantou Hsien ; Jan. 1964 ; same collector and host as for preceding except TMT 42-47; PIPR • 1 ♂ ; same collection data as for preceding; UMSP • 1 ♂ , 1 ♀ ; same locality, collector and host as for preceding except Nov.–Dec. 1963 ; TMT 572–573; UMSP . Type host Hypsipetes leucocephalus nigerrimus Gould, 1863 – black bulbul. Description Both sexes Head pentagonal ( Fig. 24 ), lateral margins of preantennal head straight to slightly convex, frons concave. Marginal carina moderate, narrowing slightly anteriorly, with shallowly undulating median margins. Dorsal anterior plate with shallowly concave anterior margin and slightly convex lateral margins. Ventral anterior plate roughly triangular, but with deeply concave anterior margin. Narrow dorsal preantennal suture does not reach ads in 2 examined males, and reaches ads on only one side in 2 examined females; in 2 males and 1 female suture reaches ads ; suture does not reach lateral margins of head. Preantennal nodi moderate, not extended medianly. Head chaetotaxy as in Fig. 24 . Coni do not reach distal margin of scapes. Temples rounded, temporal marginal carina slender, of more or less constant thickness. Thoracic and abdominal segments as in Figs 22–23 . Base color pale brown yellow, darkening to pale brown on marginal carina, head nodi, gular plate, proepimera, and metepisterna, and to medium brown on lateral section of tergopleurites. Figs 22–23. Guimaraesiella lorica sp. nov. 22 . Male habitus, dorsal and ventral views. 23 . Female habitus, dorsal and ventral views. Male Thoracic and abdominal chaetotaxy as in Fig. 22 . Basal apodeme broad ( Fig. 25 ), constricted at midlength. Proximal mesosome trapezoidal ( Fig. 27 ). Ventral sclerite short, with thickened anterior end. Mesosomal lobes bulging slightly in anterior end, slender distally; 3 ames sensilla on each side; 2 pmes microsetae on lateral margins of mesosome. Gonopore deeply crescent shaped. Parameral heads as in Fig. 26 . Parameral blades stocky, narrowing only near distal end; pst1–2 as in Fig. 26 . Measurements as in Table 1 . Figs 24–28. Guimaraesiella lorica sp. nov. 24 . Male head, dorsal and ventral views. 25 . Male genitalia, dorsal view. 26 . Male paramere, dorsal view. 27 . Male mesosome, ventral view. 28 . Female subgenital plate and vulval margin, ventral view. Female Thoracic and abdominal chaetotaxy as in Fig. 23 . Subgenital plate broad ( Fig. 28 ), with slender, somewhat diffuse, lateral submarginal extensions that reach slightly more than halfway to lateral ends of vulval margin. Vulval margin gently rounded ( Fig. 28 ), with 3 short, slender vms and 6–7 short, thornlike vss on each side; 4–6 short, slender vos on each side of subgenital plate; distal 1 vos median to vss . Measurements as in Table 1 .