Guimaraesiella (Cicchinella) avinus ( Ansari, 1956 )

Gustafsson, Daniel R., Clayton, Dale H. & Bush, Sarah E., 2019, Twelve new species of Guimaraesiella (Phthiraptera: Ischnocera: Philopteridae) from “ babblers ” (Passeriformes: Leiothrichidae, Pellorneidae, Timaliidae) with a description of a new subgenus and a key to its species, Zootaxa 4543 (4), pp. 451-497 : 466-467

Guimaraesiella (Cicchinella) avinus ( Ansari, 1956)

( Figs 31–38 )

Brueelia avinus Ansari, 1956: 141 , figs 8–12.

Guimaraesiella avinus ( Ansari, 1956) ; Gustafsson & Bush, 2017 : 221.

Type host. Trochalopteron subunicolor subunicolor Blyth, 1843 —scaly laughing-thrush ( Leiothrichidae ).

Type locality. Chungtang , Sikkim, India .

Description. Both sexes. Head flat-dome shaped ( Fig. 33 ). Lateral margins of preantennal area convex. Dorsal preantennal suture does not reach lateral margins of head, and does not completely separate dorsal anterior plate from main head plate. Head chaetotaxy a sin Fig. 33 ; pns microsetae. Coni short, not approaching distal margin of scape. Antennae sexually dimorphic. Gular plate triangular. Thoracic and abdominal segments as in Figs 31–32 . Reentrant heads of pleurites short and blunt.

Male. Scape as in Fig. 33 . Thoracic and abdominal chaetotaxy as in Fig. 31 . Male genitalia as in Figs 35–37 . Basal apodeme broad ( Fig. 35 ), rectangular. Proximal mesosome rounded ( Fig. 36 ). Ventral sclerite broad, rounded. Mesosomal lobes with moderately sinuous lateral margins. Marginal thickenings of lobes broad, not displaced medianly in anterior end. Large roughly trapezoidal nodi on distal mesosome. Gonopore as in Fig. 36 ; 2 ames sensilla on each side near antero-lateral ends of mesosomal lobes; no gpmes visible in examined material; 2 lpmes microsetae on each side in concave section of lateral margin of mesosomal lobes. Parameral heads irregular ( Fig. 37 ), much narrowed proximally. Parameral blades tapering only distally; pst1–2 close together. Measurements (n = 2): TL = 1.26–1.32; HL = 0.35–0.36; HW = 0.35–0.36; PRW = 0.22–0.23; PTW = 0.36–0.38; AW = 0.53–0.57.

Female. Scape as in Fig. 34 . Thoracic and abdominal chaetotaxy as in Fig. 32 ; ss of tergopleurite VIII much shorter than ss of tergopleurites II–VII. Subgenital plate as in Fig. 38 ; cross-piece with broad connection to subgenital plate. Vulval margin gently rounded, somewhat flattened medianly ( Fig. 69 ), with 3 slender vms on each side, and 6–8 thorn-like vss on each side; 3–4 slender vos on each side; distal vos median to vss. Measurements (n = 2): TL = 1.66–1.67; HL = 0.39; HW = 0.40; PRW =0.23; PTW = 0.37–0.38; AW = 0.54–0.58.

Type material. Ex Trochalopteron subunicolor subunicolor : Holotype ♂, Chungtang , Sikkim, India, 16 Feb.

1952, R. Meinertzhagen, 19938, B.M. 1952-143 (NHML) . Allotype ♀, same data as holotype ( NHML) . Paratypes: 1♂, 1♀, same data as holotype ( NHML) .

Additional material examined (non-types). Ex Trochalopteron subunicolor subunicolor : 1♂, 1♀, same data as holotype (NHML).

Figures

FIGURES 31–32. Guimaraesiella (Cicchinella) avinus (Ansari, 1956). 31, male, whole body, dorsal and ventral views. 32, female, whole body, dorsal and ventral views.

FIGURES 33–38. Guimaraesiella (Cicchinella) avinus (Ansari, 1956). 33, male head, dorsal and ventral views. 34, female antenna, ventral view. 35, male genitalia, dorsal view. 36, male mesosome, ventral view. 37, male paramere, dorsal view. 38, female subgenital plate and vulval margin, ventral view.

FIGURES 1–2. Guimaraesiella (Cicchinella) sehri (Ansari, 1955). 1, male, whole body, dorsal and ventral views. 2, female, whole body, dorsal and ventral views.

FIGURES 69–74. Guimaraesiella (Cicchinella) hampuslybecki n. sp. 69, male head, dorsal and ventral views. 70, female antenna, ventral view. 71, male genitalia, dorsal view. 72, male mesosome, ventral view. 73, male paramere, dorsal view. 74, female subgenital plate and vulval margin, ventral view.