Brueelia vaneki Balat , 1981

Gustafsson, Daniel R., Oslejskova, Lucie, Najer, Tomas, Sychra, Oldrich & Zou, Fasheng, 2019, Redescriptions of thirteen species of chewing lice in the Brueelia - complex (Phthiraptera, Ischnocera, Philopteridae), with one new synonymy and a neotype designation for Nirmus lais Giebel, 1874, Deutsche Entomologische Zeitschrift 66 (1), pp. 17-39 : 29-31

Brueelia vaneki Balat, 1981 Figs 62-63 , 64-68

Brueelia vaneki Balát, 1981: 277.

Type host.

Acrocephalus schoenobaenus (Linnaeus, 1758), sedge warbler ( Acrocephalidae ).

Type locality.

Velký Dvůr u Pohořelic, Czechia.

Description.

Both sexes. Head elongated, rounded-trapezoidal (Fig. 64 ), lateral margins of preantennal area convex proximally and concave distally, frons narrowly concave. Marginal carina moderate in width, with undulating median margin, deeply displaced at osculum. Ventral anterior plate small, shield-shaped. Head chaetotaxy and pigmentation patterns as in Figure 64 . Preantennal nodi not bulging. Pre- and postocular nodi of roughly equal size. Marginal temporal carina of moderate width, median margin undulating. Gular plate lanceolate. Thoracic and abdominal segments and pigmentation patterns as in Figures 62 and 63 .

Male. Thoracic and abdominal chaetotaxy as in Figure 62 . Male genitalia slightly distorted, and proximal mesosome not clearly visible; here illustrated in dorso-lateral view as seen in single examined specimen. Basal apodeme broad, anterior end not visible in specimen (Fig. 65 ). Proximal mesosome seemingly broad and trapezoidal (Fig. 66 ). Mesosomal lobes broad, rounded; rugose area extensive along distal margin. Gonopore distorted, but seemingly semi-oval, about as wide as long. Parameres slender, elongated distally (Fig. 67 ); only pst1 visible in specimen, as in Figure 67 . Measurements (n = 1): TL = 1.40; HL = 0.34; HW = 0.25; PRW = 0.16; PTW = 0.23; AW = 0.31.

Female. Thoracic and abdominal chaetotaxy as in Figure 63 ; holotype has 5 mms on one side and 7 mms on the other; we have here illustrated only 5, as this is the normal amount in Brueelia and the number found in the examined non-type females. Female subgenital plate is almost completely translucent and exact limits very hard to ascertain; apparently broadly pentagonal, with connection to cross-piece moderate in width (Fig. 68 ). Vulval margin rounded, with slight bulge in median section; 3 or 4 short, slender vms and 3 or 4 short, thorn-like vss on each side; 3 short, slender vos on each side of subgenital plate; distal 1 vos median to or only slightly anterior to vss. Measurements (n = 2): TL = 1.42-1.72; HL = 0.34-0.38; HW = 0.25-0.27; PRW = 0.17-0.19; PTW = 0.24-0.26; AW = 0.34-0.39.

Type material.

Holotype ♀, Velký Dvůr u Pohořelic, Czechia, 18 June 1978, F. Balát, 1519 (MMBC). Paratypes. 1♂, same data as holotype, F. Balát, 1507 (MMBC). 2♀, Hodonín, Czechia, Aug. 1951, F. Balát, 614 (MMBC).

Remarks.

Balát (1981) explicitly designated a holotype (female on slide 1519), which is also marked accordingly on the label in handwriting. All other specimens were explicitly designated paratypes. Presently, there are four slides with this material at the MMBC, comprising one male and three females; the remaining two males and two nymphs mentioned by Balát are not in the MMBC, and must be regarded as lost. In addition, slide 1520, which supposedly contained a male of this species, is empty.

Figures

Figures 62 - 63. Brueelia vaneki Balat, 1981, ex Acrocephalus schoenobaenus (Linnaeus, 1758) 62 Male habitus, dorsal and ventral views 63 Female habitus, dorsal and ventral views.

Figures 64 - 68. Brueelia vaneki Balat, 1981, ex Acrocephalus schoenobaenus (Linnaeus, 1758) 64 Male head, dorsal and ventral views 65 Male genitalia, dorsal view, except mesosome which is distorted in specimen and here drawn in dorso-lateral view 66 Male mesosome, ventro-lateral view 67 Male paramere, dorsal view 68 Female subgenital plate and vulval margin, ventral view.