Strigiphilus, Mjoberg, 1910

Shimada, Megumi & Yoshizawa, Kazunori, 2020, A revision of Strigiphilus (Insecta: Phthiraptera: Philopteridae) from Japan, Zootaxa 4779 (4), pp. 501-521 : 515

Key to adults of the Japanese species of Strigiphilus

1 Dorsal anterior plate ratio (DAPW/DAPL> 0.8) ( Figs 3, 6 ); antennae sexually dimorphic, first segment of male antennae thickened and elongated as in Fig. 2 ........................................................ Strigiphilus heterocerus

1’ Dorsal anterior plate ratio (DAPW/DAPL) less than 0.8 (e.g. Figs 36, 39 , 41, 44 ); antennae not sexually dimorphic....... 2

2 Male genitalia with large mesosome, as in Figs 19 , 24 , 28 ; dorsal anterior plate length about half the length of the head................................................................................... Strigiphilus heterogenitalis

2’ Male genitalia with small mesosome, as in Fig. 9 ; dorsal anterior plate length less than half the length of the head......... 3

3 Abdominal segment III with postspiracular seta; basal apodeme of male genitalia without thickened central prolongation of ( Figs 9 , 14 )............................................................................ Strigiphilus cursor

3’ Abdominal segment III without long postspiracular seta; basal apodeme of male genitalia with a forked prolongation, not fused to penis ( Figs 32 , 37 , 42 ).......................................................... cursitans species-group ... 4

4 Preconal head margin convex ( Figs 30, 32 ).............................................. Strigiphilus ceblebrachys

4’ Preconal head margin concave ( Figs 35, 38 , 40 43 )........................................................... 5

5 Male genitalia as in Fig. 42 ; ratio of male genitalia length to total body length (GL/TL) more than 0.16..................................................................................................... Strigiphilus tuleskovi

5’ Male genitalia as in Fig. 37 ; ratio of male genitalia length to total body length (GL/TL) less than 0.16.................................................................................................. Strigiphilus stenocephalus

Figures

FIGURES 2–6. Strigiphilus heterocerus: 2, male habitus. 3, male dorsal anterior plate. 4, male genitalia. 5, female habitus. 6, female dorsal anterior plate. Scale bar for 2 and 5: 0.5mm; for 3, 4 and 6: 0.1mm.

FIGURES 35–39. Strigiphilus stenocephalus: 35, male habitus. 36, male dorsal anterior plate. 37, male genitalia. 38, female habitus. 39, female dorsal anterior plate. Scale bar for 35 and 38: 0.5mm; for 36, 37 and 39: 0.1mm.

FIGURES 40–44. Strigiphilus tuleskovi: 40, male habitus. 41, male dorsal anterior plate. 42, male genitalia. 43, female habitus. 44, female dorsal anterior plate. Scale bar for 40 and 43: 0.5mm; for 41, 42 and 44: 0.1mm.

FIGURES 17–21. Strigiphilus heterogenitalis from Otus lempiji pryeri: 17, male habitus. 18, male dorsal anterior plate. 19, male genitalia. 20, female habitus. 21, female dorsal anterior plate. Scale bar for 17 and 20: 0.5mm; for 18, 19 and 21: 0.1mm.

FIGURES 22–26. Strigiphilus heterogenitalis from Ninox scutulata: 22, male habitus. 23, male dorsal anterior plate. 24, male genitalia. 25, female habitus. 26, female dorsal anterior plate. Scale bar for 22 and 25: 0.5mm; for 23, 24 and 26: 0.1mm.

FIGURES 27–29. Male Strigiphilus heterogenitalis from Strix uralensis fuscescens (paralectotype of S. laticephalus): 27, habitus. 28, genitalia. 29, dorsal anterior plate. Scale bar for 27: 0.5mm; for 28 and 29: 0.1mm.

FIGURES 7–11. Strigiphilus cursor [specimens identified by Uchida (1949: 542) as “Philopterus cursor” from Asio flammeus flammeus]: 7, male habitus. 8, male dorsal anterior plate. 9, male genitalia. 10, female habitus. 11, female dorsal anterior plate. Scale bar for 7 and 10: 0.5mm; for 8, 9 and 11: 0.1mm.

FIGURES 12–16. Strigiphilus cursor [specimens identified by Uchida (1949: 543) as “Philopterus cursor var laticephalus” from Strix aluco yamadae]: 12, male habitus. 13, male dorsal anterior plate. 14, male genitalia. 15, female habitus. 16, female dorsal anterior plate. Scale bar for 12 and 15: 0.5mm; for 13, 14 and 16: 0.1mm.

FIGURES 30–34. Strigiphilus ceblebrachys: 30, male habitus. 31, male dorsal anterior plate. 32, male genitalia. 33, female habitus. 34, female dorsal anterior plate. Scale bar for 30 and 33: 0.5mm; for 31, 32 and 34: 0.1mm.