Chewing lice of the genus Myrsidea (Phthiraptera: Menoponidae) from the Cardinalidae, Emberizidae, Fringillidae and Thraupidae (Aves: Passeriformes) from Costa Rica, with descriptions of four new species Author Kounek, Filip Author Sychra, Oldrich Author Capek, Miroslav Author Lipkova, Alexandra Author Literak, Ivan text Zootaxa 2011 3032 1 16 journal article 46326 10.5281/zenodo.278715 631bcf14-5ada-441e-8de1-816275ccc240 1175-5326 278715 Myrsidea johnklickai Price, Johnson and Dalgleish, 2008 Myrsidea johnklickai Price, Johnson and Dalgleish, 2008 : 4 , Figs. 5–7 . Type host: Cyanocompsa cyanoides (Lafresnaye) — Blue-black Grosbeak. Material studied. 1 female , ex Cyanocompsa cyanoides (Cardinalidae) , COSTA RICA : Rincon de la Vieja National Park, Sector Santa Maria, Sendero del Padre ( 10°46’N , 85°18’N ; 800m ), 21 August 2009 , Sychra and Literak leg. Deposited in INBio (O.Sychra CR102); 3 males ex Cyanocompsa cyanoides , COSTA RICA : Hitoy Cerere BR, Provincia Limón (9˚40’N, 85˚05’W), 19–25 August 2004 , Literak leg. (O.Sychra CR61). Remarks. The characteristics of the female studied are completely consistent with the description of M . johnklickai presented by Price et al. (2008) . On the other hand, the characteristics of three males collected from Cyanocompsa cyanoides in 2004 ( Sychra et al. 2007 ) were somewhat different from their description. They have a smaller number of metanotal and tergal setae and smaller dimensions as follows [setal counts and dimensions mentioned by Price et al. (2008) are in parentheses]: Male (n = 3) . Mean length of head seta 10, 0.054 (n=4); seta 11, 0.094 (n=4); ratio10/11, 0.58. Metanotum with 6–9 (8–9) setae on posterior margin, metasternal plate large with 6–7 (5) setae. Tergal setae: I, 9–12 (10–12); II–V, 13–16 ( II 13–14 , III 12– 15 , V 11–14); VIII, 10–11 (8–10). Sternal setae: II, 10–13 (11–15) marginal between asters, 4–7 (9–14) anterior; sternites III–VII without medioanterior setae. Dimensions : TW, 0.41–0.43 (0.42–0.43); HL, 0.28–0.29 (0.29–0.31); TL, 1.20–1.26 (1.24–1.33); GW, 0.10–0.12; GSL, 0.10.