Guimaraesiella (Dicrurobates) latitemporalis Gustafsson, 2020

Gustafsson, Daniel R. & Bush, Sarah E., 2020, A new subgenus and eight new species of Guimaraesiella Eichler, 1949 (Phthiraptera: Ischnocera: Philopteridae: Brueelia-complex), Zootaxa 4885 (2), pp. 151-188 : 164-167

Guimaraesiella (Dicrurobates) latitemporalis Gustafsson & Bush, new species

( Figs 22–28 )

urn:lsid:zoobank.org:act:80062BAA-25A9-4246-8AB9-D6885DE09F66

Type host. Dicrurus hottentottus brevirostris (Cabanis, 1851) —hair-crested drongo.

Other host. Dicrurus hottentottus ssp. (Linnaeus, 1766)—hair-crested drongo.

Type locality. Ban Nong Wai , Na Phung, Dan Sai District, Loei Province, Thailand .

Diagnosis. Guimaraesiella (Dicrurobates) latitemporalis is morphologically closest to Guimaraesiella (Di.) carbonivora . To distinguish these two species, see above, under the Diagnosis of the latter species.

Description. Both sexes. Head shape and chaetotaxy as in Fig. 24 . Lateral margins of preantennal area slightly convex, frons broadly flattened, slightly concave medianly; marginal carina broad, irregular; dorsal preantennal suture reaches dsms and ads, but not lateral margins of head; ventral anterior plate broad, roughly trapezoidal; coni broad but short; temples rounded, much wider than preantennal head; gular plate broadly rhombic ( Fig. 24 ). Thoracic and abdominal segments as in Figs 22–23 .

Male. Thoracic and abdominal chaetotaxy as in Fig. 22 ; aps present on tergopleurites IV–VII. Genitalia as in Figs 25–27 : basal apodeme rounded rectangular, with slight constriction at mid-length ( Fig. 25 ). Proximal mesosome broad, trapezoidal; ventral sclerite broad anteriorly, narrowing distally, reaching anterior margin of mesosome; secondary plate with irregular anterior end; mesosomal lobes broad; rugose nodi prominent, connected medianly by wrinkled or rugose band anterior to gonopore; 2 ames sensilla on each side near antero-lateral corners of mesosomal lobes; 2 pmes sensilla on each side lateral to gonopore, near rugose nodi; gonopore broader than long, with slender marginal thickening widening somewhat distally ( Fig. 26 ). Parameral heads irregularly triangular, and blades broad, tapering only distally ( Figs 25, 27 ). Measurements: Ex Dicrurus hottentottus brevirostris (n = 17): TL = 1.40–1.64 (1.49); HL = 0.36–0.40 (0.38); HW = 0.33–0.38 (0.35); PRW = 0.19–0.23 (0.21); PTW = 0.29–0.35 (0.31); AW = 0.39–0.51 (0.43). Ex Dicrurus hottentottus (n = 8, except AW, where n = 7): TL = 1.36–1.59; HL = 0.37–0.40; HW = 0.33–0.37; PRW = 0.19–0.23; PTW = 0.30–0.35; AW = 0.42–0.50.

Female. Thoracic and abdominal chaetotaxy as in Fig. 23 ; psps present on tergopleurite VIII. Subgenital plate roughly trapezoidal, with irregular lateral margins; lateral submarginal bulges triangular, wide ( Fig. 28 ). Vulval margin flattened medianly, with 3–6 short, slender vms on each side, and 5–9 short, thorn-like vss on each side; 4–6 short, slender vos on each side; distal 1–2 vos anterior to vss ( Fig. 28 ). Measurements: Ex Dicrurus hottentottus brevirostris (n = 21): TL = 1.57–1.94 (1.73); HL = 0.38–0.44 (0.40); HW = 0.36–0.42 (0.37); PRW = 0.21–0.25 (0.22); PTW = 0.32–0.36 (0.34); AW = 0.44–0.56 (0.48). Ex Dicrurus hottentottus (n = 8, except TL, where n = 7): TL = 1.58–2.00; HL = 0.38–0.44; HW = 0.35–0.42; PRW = 0.20–0.25; PTW = 0.33–0.39; AW = 0.49–0.59.

Etymology. The species epithet is formed by “ latus” Latin for “broad”, and “ tempus ” Latin for “temples”, referring to the wide postantennal area of this species.

Type material. Ex Dicrurus hottentottus brevirostris : Holotype ♂, Ban Nong Wai , Na Phung, Dan Sai District, Loei Province, Thailand, 16 Nov. 1954, R . E. Elbel, RE-4264, RT-B-21025 ( NHML). Paratypes: 1♂, 3♀, Jingxin County, Guanxi Province, China, 24 Sep. 2004, S.E. Bush, P-208, ATP-2004-78, PIPR#56–57 ( PIPR); 1♂, 2♀, same locality and collector, 26 Sep. 2004, P-267, ATP-2004-93, PIPR#58 ( PIPR); 1♂, 1♀, same locality and col-lector, 30 Sep. 2004, P-391, AN-447, PIPR#59 ( PIPR); 1♀, same locality and collector, 6 Oct. 2004, P-603, ATP-2004-179, PIPR#60 ( PIPR); 7♂, 7♀, same locality and collector, 7 Oct. 2004, P-604, ATP-2004-180, PIPR#61–65 ( PIPR); 1♀, same locality and collector, 8 Oct. 2004, P-629, GC-2004-40, PIPR#66 ( PIPR); 2♂, 2♀, same data, P-641, ATP-2004-193, PIPR#55 , 85 ( PIPR) .

Non-type material. Ex Dicrurus hottentottus : 2♂, 1♀, Phu Phan Mountains , Sakon Nakhon Province, Thai-land, 14 Jun. 1954, R. E. Elbel & B. Lekagul, RE-3696, B-30883 ( PIPR) ; 1♂, 3♀, same data ( NHML) ; 1♂, Khlong Khlung , Kamphaeng Phet Province, Thailand, 20 Apr. 1953, R. E. Elbel & H.G. Deignan, RE-2462, RT-B-21032 ( NHML) ; 2♂, 1♀, Wat Phai Lom , Thailand, 24 Nov. 1970, WE-813 ( NHML) ; 1♂, 1♀, Doi Pha Hom Pok , Chieng Mai Province, Thailand, 10 Oct. 1965, MAPS-2213 ( NHML) ; 1♂, 1♀, Pangla , Lampang Province, Thailand, 5 Feb. 1953, R. E. Elbel & H.G. Deignan, RE-2244, RT-B-17754 ( NHML) ; 1♂, 1♀, Pang Nam Un , Bun Yun, Nan Province, Thailand, 20 Jan. 1953, R. E. Elbel & H.G. Deignan, RE-2101, RT-B-17718 ( NHML) ; 1♂, 1♀, Ban Pha Hanh , Nan Province, Thailand, 30 Nov. 1961, Y-80 ( NHML) ; 1♀, Wat Phai Lom , Thailand, 10 Feb. 1970, XE-106, 050-37514 ( USNM) ; 1♂, D[ehra] Dun [ India?], L. Harrison Collection, BM 1934-570 ( NHML) .

Ex Dicrurus hottentottus brevirostris : 3♂, 3♀, Pang Nam Un , Bun Yun, Nan Province, Thailand, 20 Jan. 1953, R . E. Elbel & H.G. Deignan, RE-2101, RT-B-17718 ( BPBM); 1♂, 1♀, Pangla , Lampang Province, Thailand, 5 Feb. 1953, R . E. Elbel & H.G. Deignan, RE-2244, RT-B-17754 ( BPBM) .

Remarks. In the phylogeny of Bush et al. (2016), Guimaraesiella latitemporalis was represented by two specimens from the type host, as well as one specimen from Liocichla phoenicea (Gould, 1837) , but we have not examined any other Guimaraesiella from L. phoenicea . Although no data are available on whether the two host species occur in the same mixed-species foraging flocks, other species of Dicrurus and Liocichla are known to flock together ( Chen & Hsieh 2002), which may provide opportunities for lice to exchange hosts. We do not include L. phoenicea as a host of G. latitemporalis until more samples confirm that this host-louse association is natural and regular.

Figures

FIGURES 22–23. Guimaraesiella (Dicrurobates) latitemporalis new species. 22, male habitus, dorsal and ventral views. 23, female habitus, dorsal and ventral views.

FIGURES 24–28. Guimaraesiella (Dicrurobates) latitemporalis new species. 24, male head, dorsal and ventral views. 25, male genitalia, dorsal view. 26, male mesosome, ventral view. 27, male paramere, dorsal view. 28, female subgenital plate and vulval margin, ventral view.