Aporisticeras athertona ( Williams, 1981 )

Bush, Sarah E., 2017, Morphological revision of the hyperdiverse Brueelia - complex (Insecta: Phthiraptera: Ischnocera: Philopteridae) with new taxa, checklists and generic key, Zootaxa 4313 (1), pp. 1-443: 315-318

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https://doi.org/10.11646/zootaxa.4313.1.1

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scientific name

Aporisticeras athertona ( Williams, 1981 )
status

 

Aporisticeras athertona ( Williams, 1981) 

( Figs 417–420View FIGURES 415 – 419View FIGURES 420 – 421)

Brueelia athertona Williams, 1981: 517  .

Type host. Nyctyornis athertoni athertoni (Jardine & Selby, 1828)  —blue-bearded bee-eater. Type locality. Bengal, India.

Other host. Nyctyornis amicta (Temminck, 1824)  —red-bearded bee-eater.

Description. Both sexes. Head structure, shape, and chaetotaxy as in genus description and Fig. 526View FIGURES 526 – 531. Thoracic and abdominal segments as in Figs 524–525View FIGURES 524 – 525; pteronotum with 5–6 mms of about equal length on each side.

Male. Abdominal chaetotaxy as in Table 2 and Fig. 524View FIGURES 524 – 525. Basal apodeme diffuse anteriorly ( Fig. 527View FIGURES 526 – 531), with lateral folds that widen distally. Near posterior margin of basal apodeme there is a transversal, thickened ventral arch (anterior transversal sclerite, ATS in Fig. 528View FIGURES 526 – 531), connected to or articulating with lateral ends of mesosomal lobes. Proximal mesosome small, square-shaped. Gonopore ( Fig. 528View FIGURES 526 – 531) large, terminal, open distally. Mesosomal lobes wide, triangular; ames absent; 2 pmes microsetae on lateral margins of mesosomal lobes. Dorsal and posterior to gonopore a second transversal sclerite (distal transversal sclerite, DTS in Fig. 528View FIGURES 526 – 531). Parameral heads ( Figs 529–530View FIGURES 526 – 531) bifid, with grove into which lateral ends of mesosome fits ( Fig. 527View FIGURES 526 – 531). Parameral blades with a thickened, wrinkled lateral section and a diaphanous median “sail” along most of the length of the paramere; pst as in genus description. Measurements ex Nyctyornis athertoni  ( Thailand) (n = 6): TL = 1.51–1.62; HL = 0.40–0.43; HW = 0.42–0.47; PRW = 0.25–0.27; PTW = 0.42–0.45; AW = 0.53–0.57. Ex Nyctyornis athertoni  ( India) (n = 3 except n = 1 for TL): TL = 1.654; HL = 0.41–0.44; HW = 0.46–0.49; PRW = 0.25–0.27; PTW = 0.43–0.47; AW = 0.59–0.63. Ex Nyctyornis amicta  (n = 1): TL = 1.61; HL = 0.42; HW = 0.44; PRW = 0.26; PTW = 0.45; AW = 0.68.

Female. Abdominal chaetotaxy as in Table 2 and Fig. 525View FIGURES 524 – 525. Subgenital plate roughly oval, reaching vulval margin where it flares into broad cross-piece ( Fig. 531View FIGURES 526 – 531). Vulval margin with 2–3 median vms and 5–7 more lateral thorn-like vms on each side ( Fig. 531View FIGURES 526 – 531); 2–4 minute vss on each side. 3–4 slender vos on each side, not approaching vss. ex Nyctyornis athertoni  ( Thailand) (n = 7): TL = 1.76–2.01; HL = 0.43–0.46; HW = 0.48–0.50; PRW = 0.26– 0.28; PTW = 0.46–0.48; AW = 0.60–0.73. Ex Nyctyornis athertoni  ( India) (n = 3): TL = 2.03–2.09; HL = 0.49– 0.51; HW = 0.54–0.57; PRW = 0.29–0.31; PTW = 0.53–0.55; AW = 0.77–0.84. Ex Nyctyornis amicta  (n = 2): TL = 1.76–2.00; HL = 0.42–0.45; HW = 0.45–0.50; PRW = 0.27; PTW = 0.43–0.48; AW = 0.67–0.68.

Type material. Ex Nyctyornis athertoni athertoni  : Holotype ♂, Bengal , India, Jan. 1926, R. Meinertzhagen, 2748 ( NHML)  . Paratypes: 1♂, 1♀, same data as holotype ( NHML)  ; 1♂, 2♀, same data as holotype ( OSUS)  .

Additional material examined (non-types)

Ex Nyctyornis athertoni athertoni  : 3♂, 3♀, Dehra Dun, [Uttarakhand], India, Jan. 1940, R. Meinertzhagen, 13940 ( NHML); 3♂, 3♀, Hinlaem, Thakanun, Kanachanaburi Province, Thailand, 28 Oct. 1952, R.E. Elbel & H.G. 

Deignan, RE-1317, RT-B-15809 ( OSUS); 2♂, 2♀, Hinlaem , Thakanun, Kanachanaburi Province, Thailand, 28 Oct. 1952, R.E. Elbel & H.G. Deignan, RE-1317, RT-B-15809 (PIPeR)  ; 1♀, 10 km East of Prae border, Pangnamun, Ban Yun, Nan Province, Thailand, 25 Jan. 1953, R.E. Elbel & H.G. Deignan, RE-2205, RT-B-17729 (PIPeR). 

Ex Nyctyornis amicta  : 1♀, Huai Yang , Prachuap Khiri Khan Province, Thailand, 27 Dec. 1952, R.E. Elbel & H.G. Deignan, RE-2079, RT-B-17696 ( NHML); 1♂, 1♀, Huai Yang, Prachuap Khiri Khan Province, Thailand, 27 Dec. 1952, R.E. Elbel & H.G. Deignan, RE-2079, RT-B-17696 (PIPeR). 

Remarks. The type host, Nyctyornis athertoni  , occurs in two discontinuous areas, with one population inhabiting peninsular India, and another (including two subspecies) ranging from Bengal to Cambodia and Vietnam ( Fry et al. 1999). Specimens from peninsular India are typically larger than those from Thailand, this feature being more striking in females than in males. Therefore, we have included measurements of specimens from both host populations separately. Too little material was examined to draw any taxonomic conclusions from the size differences found between the two Aporisticeras  populations from N. athertoni  . Specimens examined from N. amicta  are inseparable from those of the type host, but samples sizes from both host species are small.

NHML

Natural History Museum, Tripoli

OSUS

Oklahoma State University

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Phthiraptera

Family

Philopteridae

Genus

Aporisticeras

Loc

Aporisticeras athertona ( Williams, 1981 )

Bush, Sarah E. 2017
2017
Loc

Brueelia athertona

Williams 1981: 517