Philopterus petrescuae Adam

Sychra, Oldrich, Palma, Ricardo L., Saxena, Arun K., Ahmad, Aftab, Bansal, Nayanci & Adam, Costică, 2011, Chewing lice of the genus Philopterus (Phthiraptera: Philopteridae) from drongos (Passeriformes: Dicruridae), Zootaxa 2868, pp. 51-61 : 56-58

publication ID

https://doi.org/ 10.5281/zenodo.203008

DOI

https://doi.org/10.5281/zenodo.6192277

persistent identifier

https://treatment.plazi.org/id/6027E358-FFE2-FFC0-FF78-9AA1FBA0E798

treatment provided by

Plazi

scientific name

Philopterus petrescuae Adam
status

sp. nov.

Philopterus petrescuae Adam , sp. nov.

( Figs. 23–31 View FIGURES 23 – 30 View FIGURES 31 – 32 , 34 View FIGURES 33 – 34. 33 )

Type host: Dicrurus hottentottus (Linnaeus) —Hair-crested drongo.

Male (n = 2). As in Fig. 34 View FIGURES 33 – 34. 33 . Head: Coni short (0.054–0.056) and curved upwards ( Figs. 27–28 View FIGURES 23 – 30 ). Dorsal anterior head plate as in Fig. 30 View FIGURES 23 – 30 ; ventral anterior head plate with narrow posterior margin. Anterior seta 3 (see Clay 1951) stout and relatively long (0.094–0.102). Anterior seta 1 (preconal seta of Price & Hellenthal 1998) short (0.017–0.019 in length). Postconal seta short (0.017–0.019 long). Dorsal submarginal seta very short, only 0.010– 0.015 long ( Fig. 24 View FIGURES 23 – 30 ). Thorax: Pterothorax with 18–20 posterior setae. Abdomen: Abdominal chaetotaxy: tergal setae: II, 10 (plus anterior pair); III, 10–11; IV, 9–12; V, 11–12; VI, 12; VII, 11; VIII, 11; IX, 2; sternal setae: II, 7– 9; III–V, 9; VI, 8; subgenital plate as in Fig. 25 View FIGURES 23 – 30 with 4 long setae (paratype male has two additional shorter setae; we consider this an abnormality); pleural (paratergal) setae: II–III, 0; IV–V, 3; VI–VII, 4; VIII, 3; IX, 1. Lateral sternites on III–VI 0.026–0.046 wide ( Figs. 23, 25 View FIGURES 23 – 30 ). Genitalia ( Fig. 29 View FIGURES 23 – 30 ) with short and stout parameres fused with the basal plate; endomeral plate simple with pointed posterior margin, mesomere with two rounded distal projections not overlapping the posterior margin of the endomeral plate.

Dimensions: FW, 0.24–0.25; FHMW, 0.29–0.30; HMI, 1.20–1.21; PAW, 0.35–0.36; TW, 0.48–0.50; HL, 0.54– 0.56; PAL, 0.31; LHCL, 0.11; DAPL, 0.28; DAPW, 0.14–0.15; PW, 0.30; MW, 0.41–0.42; AWV, 0.64–0.68; SGPW, 0.35; TL, 1.55–1.66; GL, 0.29; GW, 0.10.

Female (n = 2). Most features as in male. Pterothorax with 15–17 posterior setae. Abdominal chaetotaxy ( Fig. 23 View FIGURES 23 – 30 ): tergal setae: II, 11 (plus anterior pair); III, 12–14; IV, 13–15; V, 15–17; VI, 13–15; VII, 12–14; VIII, 10; IX, 4; sternal setae: II, 7; III–IV, 8–9; V, 9–10; VI, 8–11; subgenital plate as in Fig. 26 View FIGURES 23 – 30 with 4 long setae (one paratype female has one additional seta; we consider this an abnormality); vulva with 14–16 medium long and 6–9 short setae ( Fig. 26 View FIGURES 23 – 30 ).

Dimensions: FW, 0.25; FHMW, 0.30–0.31; HMI, 1.20–1.24; PAW, 0.37; TW, 0.53–0.56; HL, 0.57–0.62; PAL, 0.32; LHCL, 0.11–0.12; DAPL, 0.30–0.31; DAPW, 0.15–0.16; PW, 0.33; MW, 0.45–0.46; AWV, 0.72–0.81; SGPW, 0.38–0.40; TL, 1.90–1.99.

Type material. Holotype male ex Dicrurus hottentottus (Linnaeus) , INDONESIA: Bunaken Island (NE Sulawesi), 15.IV.1991, A. Petrescu & C. Adam coll. Deposited in “Grigore Antipa” National Museum of Natural History (slide ISC 258). Paratypes: 1 male and 2 females with same data as holotype. Deposited in “Grigore Antipa” National Museum of Natural History (slides ISC 258 and ISC 259).

Remarks. Both sexes of P. petrescuae sp. nov. can be distinguished from P. trabecula and P. kalkalichi by a unique combination of characters, as follows: (1) dorsal submarginal seta very short, under 0.02 long ( Fig. 24 View FIGURES 23 – 30 ); (2) female with great number of tergal setae on segments III, V and VI; (3) female with great number of sternal setae on segments II, III and V; (4) three pleural setae on segments IV–V and four on segments VI–VII; (5) small lateral sternites on abdominal segment VI ( Fig. 23 View FIGURES 23 – 30 ); (6) male genitalia shape, especially the mesomere ( Fig. 29 View FIGURES 23 – 30 ); (7) shape of male subgenital plate ( Fig. 25 View FIGURES 23 – 30 ); (8) greater dimensions overall.

Seven nymphs were also collected from the bird which harboured the holotype and paratypes, but they are not included in the type series. The presence of nymphs shows that P. petrescuae has bred on the host.

Etymology. This species is named after Dr Angela Petrescu (“Grigore Antipa” National Museum of Natural History, Bucharest, Romania) for her contribution in collecting the type series.

ISC

International Salmonella Centre (W.H.O.)

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