Guimaraesiella (Dicrurobates) dicruri ( Ansari, 1955 )

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 : 155-160

Guimaraesiella (Dicrurobates) dicruri ( Ansari, 1955)

( Figs 8–14 )

Bruelia [sic] dicruri Ansari, 1955: 53 .

Bruëlia [sic] dicruri Ansari, 1956: 395 . Junior primary homonym.

Brueelia dicruri ( Ansari, 1955) ; Price et al. 2003: 154.

Guimaraesiella dicruri ( Ansari, 1955) ; Gustafsson & Bush 2017: 221, 356.

Guimaraesiella dicruri ( Ansari, 1955) ; Gustafsson et al. 2019a: 453.

Type host. Dicrurus macrocercus albirictus (Hodgson, 1836) —black drongo.

Other hosts. Dicrurus macrocercus thai Kloss, 1921 —black drongo. Dicrurus macrocercus macrocercus Vieillot, 1817 —black drongo. Dicrurus caerulescens caerulescens (Linnaeus, 1758) —white-bellied drongo.

Type locality. Pakistan .

Description. Both sexes. Head shape and chaetotaxy as in Fig. 10 . Lateral margins of preantennal area convex, frons rounded to slightly flattened; marginal carina slender; dorsal preantennal suture reaches dsms but does not extend much towards ads, and does not reach lateral margins of head; ventral anterior plate small, rounded triangular; coni short; temples rounded; gular plate rounded laterally with median point ( Fig. 10 ). Thoracic and abdominal segments as in Figs 8–9 .

Male. Thoracic and abdominal chaetotaxy as in Fig. 8 ; aps present on tergopleurites IV–VII. Genitalia as in Figs 11–13 : basal apodeme roughly rectangular, not much constricted at mid-length, with rounded anterior end ( Fig. 11 ). Proximal mesosome square; ventral sclerite with slender anterior end, not reaching proximal margin of mesosome; mesosomal lobes anteriorly angular; rugose nodi extensive; 2 ames sensilla on each side near anterolateral corner of mesosomal lobes; 2 pmes sensilla on each side of gonopore, near rugose nodi; gonopore oval, with slender marginal thickening ( Fig. 12 ). Parameral heads as in Fig. 13 . Parameral blades tapering only distal to mesosome ( Figs 11, 13 ). Measurements: Ex Dicrurus macrocercus albirictus (n = 5, except AW, where n = 3): TL = 1.51–1.72; HL = 0.39–0.41; HW = 0.33–0.35; PRW = 0.20–0.22; PTW = 0.29–0.32; AW = 0.40–0.46. Ex Dicrurus caerulescens caerulescens (n = 5): TL = 1.44–1.61; HL = 0.38–0.39; HW = 0.32–0.33; PRW = 0.19–0.21; PTW = 0.29–0.31; AW = 0.40–0.45.

Female. Thoracic and abdominal chaetotaxy as in Fig. 9 ; psps absent on tergopleurite VIII in material from type host, Dicrurus macrocercus thai and D. caerulescens , but present on one side of tergopleurite VIII in some females from D. macrocercus macrocercus . Subgenital plate roughly square anteriorly+, with slight lateral submarginal bulges ( Fig. 14 ); vulval margin gently rounded, somewhat flattened medianly, with 2–4 short, slender vms on each side and 5–6 short, thorn-like vss on each side; 4–7 short, slender vos on each side; distal 1 vos near vss ( Fig. 14 ). Measurements: Ex Dicrurus macrocercus albirictus (n = 8, except AW, where n = 6): TL = 1.72–1.84; HL = 0.40–0.43; HW = 0.34–0.36; PRW = 0.21–0.22; PTW = 0.32–0.34; AW = 0.38–0.47. Ex Dicrurus macrocercus macrocercus (n = 9, except AW, where n = 8): TL =1.65–1.94; HL = 0.39–0.45; HW = 0.33–0.38; PRW = 0.20–0.23; PTW = 0.30–0.35; AW = 0.40–0.48. Ex Dicrurus macrocercus thai (n = 2): TL = 1.69–1.84; HL = 0.40–0.42; HW = 0.35–0.38; PRW = 0.21–0.23; PTW = 0.32–0.36; AW = 0.45–0.46. Ex Dicrurus caerulescens caerulescens (n = 7, except TL, where n = 5, and AW where n = 6): TL = 1.66–1.87; HL = 0.36–0.41; HW = 0.31–0.34; PRW = 0.19–0.21; PTW = 0.30–0.34; AW = 0.40–0.53.

Type material. Presumed lost by Naz et al. (2020), who could not locate any type specimen of B. dicruri in their search for material studied by M.A. R. Ansari .

Non-type material. Ex Dicrurus macrocercus albirictus : 5♂, 9♀, Nepal, Mar. 1937, R . Meinertzhagen , 9266 ( NHML) .

Ex D. macrocercus macrocercus : 9♀, Bombay, [Maharashtra, India], Feb. 1937, R . Meinertzhagen, 8446 ( NHML). Ex D. macrocercus thai : 2♀, Paknompho [?], Nakhon Sawan Province, Thailand, 4 Mar. 1953, R . E. Elbel, RE-1671, RT-B-17601 ( BPBM). Ex D. caerulescens caerulescens : 11♂, 6♀, Nepal, Mar. 1937, R . Meinertzhagen , 9288 ( NHML) .

Figures

FIGURES 8–9. Guimaraesiella (Dicrurobates) dicruri (Ansari, 1955). 8, male habitus, dorsal and ventral views. 9, female habitus, dorsal and ventral views.

FIGURES 10–14. Guimaraesiella (Dicrurobates) dicruri (Ansari, 1955). 10, male head, dorsal and ventral views. 11, male genitalia, dorsal view. 12, male mesosome, ventral view. 13, male paramere, dorsal view. 14, female subgenital plate and vulval margin, ventral view.