Myrsidea ramphoceli Price and Dalgleish, 2006

Price, Roger D. & Dalgleish, Robert C., 2006, Myrsidea Waterston (Phthiraptera: Menoponidae) from tanagers (Passeriformes: Thraupidae), with descriptions of 18 new species, Zootaxa 1174, pp. 1-25 : 19-21

Myrsidea ramphoceli Price and Dalgleish , new species (Fig. 26)

Type host. Ramphocelus carbo (Pallas) , Silver­beaked Tanager.

Female (14). Metanotum not enlarged, with 8–15 marginal setae. Dorsal abdomen as in Fig. 26, with tergites I–II somewhat enlarged, and posterior margin of I straight, at least II–V with slight medioposterior convexity. Tergal setae: I, 15–19; II–VI, 16–21; VII, 12– 16; VIII, 10–14. Postspiracular setae very long to extremely long on all segments. Sternal setae: II, 22–32; III, 20–26; IV–V, 30–44; VI, 28–40; VII, 14–23; VIII–IX, 19–26. Dimensions: TW, 0.46–0.50; HL, 0.31–0.33; PW, 0.28–0.31; MW, 0.43–0.47; AWIV, 0.58–0.63; ANW, 0.20–0.23; TL, 1.45–1.61.

Male (12). Metanotum with 7–12 marginal setae. Tergal setae: I, 11–14; II, 13–15; III– VII, 13–18; VIII, 10–14. Sternal setae: II, 20–28; III, 17–21; IV, 23–31; V, 24–33; VI, 21– 30; VII, 15–20; VIII, 4–8. Genital sac sclerite 0.080–0.095 long, as in Fig. 7. Dimensions: TW, 0.42–0.44; HL, 0.28–0.31; PW, 0.26–0.28; MW, 0.36–0.39; AWIV, 0.46–0.50; TL, 1.19–1.28.

Type material. Holotype female, ex R. carbo , PERU: Explor Napa Camp , Rio Yamamoto, 50 km SE Iquitos, 20 Jun 1989, R. C. Dalgleish et al. 9416 . Paratypes, all ex R. carbo : 1 female, 2 males, same data as holotype ; 2 females, 1 male, same except Rio Napa , 15 Jun 1989, 9415 ; 1 female, 3 males, same except 9417; 3 females, 6 males, same except 17 Jun 1989, 9419 and 9420.

Other material. Ex R. carbo , VENEZUELA: 4 females, 2 males, 60 km E Sta Elena, Edo Bolivar (1 collection). TRINIDAD : 2 females, 2 males, Arima, Simla (3 collections) ; 1 female, 1 male, Foster Road , Sangre Grande (1 collection) ; 1 female, Vega de Oropouche .

Remarks. The very long to extremely long postspiracular setae on all tergites, the large dimensions, and the number of marginal metanotal and abdominal setae enable identification of this species.

Myrsidea surinami Price and Dalgleish , new species (Fig. 27)

Type host. Tachyphonus surinamus (L.), Common Bush Tanager.

Female (8). Metanotum not enlarged, with 10–12 marginal setae. Abdomen (Fig. 27) with tergites I–II largest, at least II–IV with medioposterior convexity. Tergal setae: I, 10– 13; II, 12–16; III–VI, 14–17; VII, 11–14; VIII, 10–13. Postspiracular setae very long to extremely long on all segments. Sternal setae: II, 23–31; III, 19–22; IV, 29–36; V, 36–41; VI, 28–38; VII, 16–25; VIII–IX, 19–23. Dimensions: TW, 0.48–0.50; HL, 0.32–0.33; PW, 0.30–0.31; MW, 0.45–0.47; AWIV, 0.59–0.65; ANW, 0.21–0.24; TL, 1.53–1.61.

Male (3). Metanotum with 8–10 marginal setae. Tergal setae: I, 9–11; II, 12–14; III– VI, 14–17; VII, 12–15; VIII, 10–11. Sternal setae: II, 25–28; III, 21–23; IV, 27–34; V, 33– 38; VI, 26–30; VII, 17–22; VIII, 6–8. Genital sac sclerite 0.100 long, as in Fig. 3 . Dimensions: TW, 0.45; HL, 0.30–0.31; PW, 0.29–0.31; MW, 0.40–0.41; AWIV, 0.50–0.51; TL, 1.24–1.35.

Type material. Holotype female, ex T. surinamus , VENEZUELA: 60 km E Sta Elena, Edo Bolivar, Jan 1987, R. C. Dalgleish . Paratypes: 7 females, 3 males, same data as holotype .

Remarks. The combination of all postspiracular setae being very long to extremely long, the female with tergites I–II largest and II broadly convex, the large dimensions, and the smaller number of setae on tergites I–II can be used to separate M. surinami from the preceding three species.

Myrsidea spizae Price and Dalgleish , new species (Figs. 28–29)

Type host. Chlorophanes spiza (L.), Green Honeycreeper.

Female (3). Metanotum not enlarged, with 8–9 marginal setae. Metasternal plate with only 4 setae. Abdomen (Fig. 28) with all tergites approximately similar size, with straight posterior margins. Tergal setae: I, 8–11; II, 13–14; III, 15–16; IV, 13–15; V, 11–14; VI, 10– 11; VII, 8–10; VIII, 8. Postspiracular setae very long to extremely long on IV and VII, shortest on III and V–VI. Sternal setae: II, 20–25; III, 20–24; IV, 29–33; V, 32–38; VI, 22– 24; VII, 10–12; VIII–IX, 19. Dimensions: TW, 0.43–0.45; HL, 0.31–0.32; PW, 0.28–0.31; MW, 0.41–0.44; AWIV, 0.55–0.56; ANW, 0.19–0.20; TL, 1.47–1.56.

Male (2). Metanotum with 6–8 marginal setae. Metasternal plate with only 4 setae. Tergal setae: I, 6–9; II, 12–13; III, 14; IV–V, 10–12; VI, 10; VII, 9; VIII, 8. Sternal setae: II, 20–22; III, 16–18; IV, 27–29; V, 25–27; VI, 19–20; VII, 10; VIII, 4. Genital sac sclerite 0.080–0.090 long, as in Fig. 29. Dimensions: TW, 0.39–0.40; HL, 0.29–0.30; PW, 0.27– 0.28; MW, 0.34–0.38; AWIV, 0.44–0.45; TL, 1.22–1.25.

Type material. Holotype female, ex C. spiza , COSTA RICA: Las Cruces Biological Station , Cota Brus, 18–21 Apr 1992, R. L. Fisher 112 . Paratype, ex C. spiza : 1 male, same data as holotype except 188 .

Other material. Ex C. spiza , TRINIDAD: 1 female, 1 male, Arima, Simla (1 collection), 1 female, Melajo Forest , Sangre Grande .

Remarks. This and the following species are the only ones in this group for which females have no modification of the tergites. The female of M. spizae is recognizable by its smaller dimensions, only 4 metasternal plate setae, and fewer setae on the metanotal margin, most abdominal tergites, and some sternites. The male genital sac sclerite (Fig. 29) is unique among the thraupid lice.

Figures

FIGURES 1–6. 1–4, Myrsidea laciniaesternata. 1, Entire dorsoventral male. 2, Male genitalia. 3, Male genital sac sclerite. 4, Female metanotum and dorsoventral abdomen. 5–6, M. cyanocephalae. 5, Female metanotum and dorsal abdomen. 6, Male metanotum and dorsal abdomen.