Philopteroides pilgrimi
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Ordo: Phthiraptera
Familia: Philopteridae
Genus: Philopteroides
Name
Philopteroides pilgrimi Valim & Palma sp. n. – Wikispecies link – ZooBank link – Pensoft Profile
Type host
Gerygone igata igata (Quoy & Gaimard, 1830) – Grey warbler (Acanthizidae)
Distribution
New Zealand.
Description
Female. Habitus as in Fig. 3 and head as in Fig. 10. Anterior setae 3 (as3) rigid, 0.04–0.05 long, anterior dorsal head setae (ads) minute, 0.02 long. Hyaline membrane with shallow concavity and thin sclerotization; anterior dorsal plate slightly concave and ventral head plate deeply concave (Fig. 32). Pterothorax with 6–8 posteromarginal setae on each side. Tergo-pleural plate II with a reduced postero-lateral projection overlapping segment III, tergo-pleural plate III without projection. Tergocentral setae: II, 5–6 (plus 2 anterior setae); III, 6; IV, 5–6; V, 5–6; VI, 4–6; VII, 5–6; VIII, 5. Tergites VII–IX+X as in Fig. 17. Abdominal sternal setae: segment II, LS-SL; III, LS-SL; IV, SS-SS (rarely LS on one side only); V, SS-SS; VI, LL-LL (one female with one S on one side only). Paratergal setae (all long): II–III, 0; IV–V, 2; VI–VIII, 3. Tergites VI–VIII with an innermost seta (included in the paratergal count), lateral to postspiracular seta. Sternites III–VI well-developed as large, rectangular plates. Vulva with 3 medium long setae each side. Subgenital plate, inner genital sclerite, subvulval sclerites, and vulvar margin as in Fig. 18, and intraspecific variation of two additional females as in Figs 18a and 18b. Measurements (n = 8): HL 0.39–0.43, ANW 0.13–0.15, POL 0.16–0.17, POW 0.28–0.31, ADPL 0.21–0.22, ADPLL 0.14, ADPW 0.13–0.16, TRL 0.09–0.10, TRW 0.03–0.04, TW 0.35–0.41, PW 0.22–0.28, PTL 0.13–0.14, PTW 0.29–0.35, TPVL 0.19–0.25, AW 0.44–0.54, EWG 0.06–0.08; IWG 0.03–0.04, TL 1.35–1.65.
Male. Similar to female, except in dimensions and morphology of terminalia (Figs 4, 19, 20). Pterothorax with 5–6 posteromarginal setae on each side. Tergocentral setae: II, 6 (plus 2 anterior setae); III, 6; IV, 6; V, 6; VI, 6; VII, 6; VIII, 4. Dorsal terminalia as in Fig. 19. Sternal setae as for female. Paratergal setae (all long): II–III, 0; IV–V, 2; VI–VIII, 3. Sternal plates well developed and entire on segments III–VI; subgenital plate with 4 long setae as in Fig. 20, the anterior pair on the plate, and the posterior on the plate margin. Genitalia: length of parameres 0.40 (Fig. 33). Measurements (n = 1): HL 0.38, ANW 0.14, POL 0.15, POW 0.28, ADPL 0.18, ADPLL 0.13, ADPW 0.14, TRL 0.09, TRW 0.03, TW 0.36, PW 0.21, PTL 0.15, PTW 0.31, TPVL 0.22, AW 0.47, GL 0.19, GW 0.08, TL 1.30.
Type specimens
Holotype ♀ (MONZ AI. 030137), ex Gerygone igata igata; NEW ZEALAND, no other data. Paratypes: 1♂, 2♀ (MONZ AI.017303) 1♀ (MZUSP #2885), same data as holotype; 2♀ (MONZ AI.017299), same host species, NEW ZEALAND: Orongorongo Valley, 20.V.1976, B.M. Fitzgerald col.; 1♀ (MONZ AI.017301), same host species, NEW ZEALAND: Kowhai Bush, Kaikoura, 15.XI.1976, B. Gill col.; 1♀ (MONZ AI.017302), same host species, NEW ZEALAND: Orongorongo Valley, 12.V.1977, B.M. Fitzgerald col..
Etymology
This species is named in memory of the late Professor Robert L.C. Pilgrim (1921–2010), for his outstanding contribution to knowledge of ectoparasitic insects, and for his long friendship with RLP (Palma 2011[1]).
Remarks
Morphologically close to Philopteroides beckeri, especially by features of the head. In addition to the key characters mentioned below, the habitus of both species is distinct (compare Figs 1 and 3; 2 and 4, respectively). Both sexes of Philopteroides pilgrimi can be distinguished by (1) the presence of spine-like setae on sternite V (absent in Philopteroides beckeri); (2) female tergites IX+X with long innermost setae situated on the tergal plate (Fig. 17) (on soft tegument in Philopteroides beckeri, Fig. 13); (3) female subgenital plate without medial setae (Fig. 18) (against three pairs of setae on each side, as in Philopteroides beckeri, Fig. 14); (4) shape of sub-vulval sclerites (compare Figs 14 and 18); (5) male subgenital plates (compare Figs 16 and 20); and (6) male genitalia (compare Figs 31 and 33).
Original Description
- Valim, M; Palma, R; 2013: Three new species of the genus Philopteroides Mey, 2004 (Phthiraptera, Ischnocera, Philopteridae) from New Zealand ZooKeys, 297: 71-89. doi
Other References
- ↑ Palma R (2011) A tribute to Robert Louis Cecil Pilgrim. Research Associate, Museum of New Zealand Te Papa Tongarewa. Tuhinga – Records of the Museum of New Zealand Te Papa Tongarewa 22: 149-156.
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