Myrsidea neocinereae, Price, Roger D., Hellenthal, Ronald A. & Dalgleish, Robert C., 2005

Price, Roger D., Hellenthal, Ronald A. & Dalgleish, Robert C., 2005, The genus Myrsidea Waterston (Phthiraptera: Menoponidae) from tyrant­flycatchers (Passeriformes: Tyrannidae), with descriptions of 13 new species, Zootaxa 1048, pp. 1-20 : 18-19

Key to the Species of Myrsidea from the Tyrannidae

Female

1 Tergites IV–VI with>31 setae, VII>26 setae .............................................................. 2

­ Tergites IV–VI with <28 setae, VII <20 setae .............................................................. 3

2 Sternites IV–VI with>50 setae; tergites I–II with <22 setae; temple width>0.50 ........ .......................................................................................................... magnidens Stafford

­ Sternites IV–VI with <40 setae; tergites I–II with>28 setae; temple width <0.48 ......... ..................................................................................................... stenodesma (Carriker)

3 Tergite I much enlarged ( Figs. 15, 17 ) ......................................................................... 4

­ Tergite I not much enlarged .......................................................................................... 5

4 Anterior tergites medioposteriorly rounded ( Fig. 17 ); tergites IV–V with>20 setae .... ............................................................................................................ neocinereae n. sp.

­ Anterior tergites medioposteriorly pointed ( Fig. 15 ); tergites IV–V with <20 setae...... ............................................................................................................... oleaginei n. sp.

5 Tergite II with pronounced medioposterior rounded expansion ( Figs. 18, 20, 21 ) ...... 6

­ Tergite II with at most only slight medioposterior convexity ...................................... 8

6 Metanotal margin with <11 setae; postspiracular seta on VI very long, much longer than on V ( Fig. 18 ); subgenital plate margin as in Fig. 19 .................. cayanensis n. sp.

­ Metanotal margin with>10 setae; postspiracular seta on VI shorter; subgenital plate margin not so heavily spiculated ................................................................................... 7

7 Sternite I with single seta ( Fig. 21 ); temple>0.47 wide; anus>0.23 wide .................... ................................................................................................................. spadicei n. sp.

­ Sternite I without seta ( Fig. 20 ); temple <0.47 wide; anus <0.22 wide. olivacei n. sp.

8 Sternite V with>50 setae; temple>0.52 wide ............................................................ 9

­ Sternite V with <48 setae; temple <0.52 wide ........................................................... 11

9 Anus>0.27 wide; postspiracular seta on III shorter than on II and IV ( Fig. 4 ).............. ................................................................................................................... pitangi n. sp.

­ Anus <0.27 wide; postspiracular seta on III similar in length to those on II and IV ( Figs. 7–8 ) .................................................................................................................. 10

10 Postspiracular seta on V shorter than those on adjacent segments ( Fig. 8 ) .................... ......................................................................................................... melancholici n. sp.

­ Postspiracular seta on V equal to length of those on adjacent segments ( Fig. 7 ) .......... ................................................................................................................ seversoni n. sp.

11 Metanotal margin with at least 10 setae .................................................................... 12

­ Metanotal margin with <10 setae ............................................................................... 14

12 Temple>0.49 wide; metathorax>0.46 wide ............................................. similis n. sp.

­ Temple <0.48 wide; metathorax <0.45 wide ............................................................. 13

13 Tergite I with slight medioposterior convexity ( Fig. 14 ); ex Contopus .. contopi n. sp.

­ Tergite I without such convexity; ex Elaenia ......................................... elaeniae n. sp.

14 Anus not>0.19 wide; each anal fringe with <32 setae; sternite V with <35 setae ........ ................................................................................................................... barbati n. sp.

­ Anus at least 0.20 wide; each anal fringe with>33 setae; sternite V with>36 setae .... ............................................................................................................. flaviventris n. sp.

Figures

FIGURES 9 – 17. 9 – 10, Myrsidea barbati. 9, Female dorsal thorax and dorsoventral abdomen. 10, Male genital sac sclerite. 11 – 12, M. similis. 11, Female dorsal thorax and abdomen. 12, Male genital sac sclerite. 13 – 14. M. contopi. 13, Male genital sac sclerite. 14, Female dorsal thorax and abdomen. 15 – 16, M. oleaginei. 15, Female dorsal thorax and dorsoventral abdomen. 16, Male genital sac sclerite. 17, M. neocinereae female dorsal thorax and dorsoventral abdomen.

FIGURES 18 – 21. 18 – 19, Myrsidea cayanensis. 18, Female dorsal thorax and dorsoventral abdomen. 19, Margin of female subgenital plate. 20 – 21, Female dorsal thorax and dorsoventral abdomen. 20, M. olivacei. 21, M. spadicei.

FIGURES 1 – 8. 1 – 2, Myrsidea magnidens. 1, Female metanotum and dorsal abdomen. 2, Male genital sac sclerite. 3, M. stenodesma female metanotum and dorsal abdomen. 4 – 6, M. pitangi. 4, Female metanotum and dorsoventral abdomen. 5, Entire dorsoventral male. 6, Male genitalia. 7, M. seversoni female dorsal thorax and abdomen. 8, M. melancholici female dorsal thorax and abdomen.