Columbicola grandiusculus Tendeiro, 1965

Adams, Richard J., Price, Roger D. & Clayton, Dale H., 2005, Taxonomic revision of Old World members of the feather louse genus Columbicola (Phthiraptera: Ischnocera), including descriptions of eight new species, Journal of Natural History 39 (41), pp. 3545-3618 : 3559-3560

Columbicola grandiusculus Tendeiro

( Figures 30–32 )

Columbicola guimaraesi grandiusculus Tendeiro 1965: 168 . Type host: Cryptophaps poecilorrhoa (Brüggemann) .

Description

Similar to C. guimaraesi except as follows. Male head setae distinctly longer ( Figure 30 ); HW, 0.30–0.32 (0.310); HL, 0.58–0.60 (0.592); HL/HL, 1.87–2.00 (1.91). Thorax with PW, 0.24–0.26 (0.250); MW, 0.28–0.30 (0.292). Genitalia as in Figure 31 ; mesosome shield–like with anterior lateral edges thicker; GW, 0.108. TL, 2.35–2.39 (2.37). Female HW, 0.32–0.33 (0.322); HL, 0.63–0.65 (0.642); HL/ HW, 1.97–2.03 (1.99). Thorax with PW, 0.25–0.26 (0.257); MW, 0.30–0.33 (0.317). Ventral terminalia as in Figure 32 ; subgenital plate groove elongate, expanding posteriorly, bordered on each side by 5–8 medium to long setae (0.015 –0.030). TL, 2.66–2.77 (2.73) .

Material

Holotype male, allotype female, 3 male, 3 female paratypes of Columbicola guimaraesi grandiusculus , ex Cryptophaps poecilorrhoa , Indonesia (1).

Remarks

This species was originally described as a subspecies of C. guimaraesi ; however, differences in the body dimensions and female ventral terminalia are distinct enough to warrant species recognition. In addition, the male head setae are distinctly longer in C. grandiusculus than in C. guimaraesi . Columbicola grandiusculus can be separated from C. vitiensis by its slightly smaller HL/HW ratio, broader head, genitalia, and by the shape and chaetotaxy of the female subgenital plate.

Columbicola vitiensis Tendeiro

( Figures 33, 34 )

Columbicola guimaraesi vitiensis Tendeiro 1967: 123 . Type host: Columba vitiensis griseogularis (Walden and Layard) .

Description

Similar to C. guimaraesi except as follows. Male head setae slightly longer; HW, 0.28; HL, 0.56–0.58 (0.572); HL/ HW, 2.00–2.07 (2.04). Thorax with PW, 0.23–0.24 (0.232); MW, 0.27–0.32 (0.290). Genitalia as in Figure 33 ; lateral edges of mesosome thick, darkly pigmented; GW, 0.098 –0.103 (0.100). TL, 2.33–2.45 (2.40). Female head with HW, 0.28–0.30 (0.290); HL, 0.59–0.62 (0.606); HL/ HW, 2.03–2.14 (2.09). Thorax with PW, 0.24–0.25 (0.244); MW, 0.29–0.35 (0.314). Ventral terminalia as in Figure 34 ; subgenital plate groove wide with distinct anterior lateral expansions, bordered on each side by 4–7 long setae (0.025 –0.049), these longer posteriorly. TL, 2.62–2.82 (2.74) .

Material

Holotype male, allotype female, 2 male, 2 female paratypes of Columbicola guimaraesi vitiensis , ex Columba vitiensis griseogularis , Philippines (1). 2 males, 2 females, ex C. punicea Blyth , Thailand (1).

Remarks

Columbicola vitiensis is morphologically closest to C. grandiusculus . The males can be separated by subtle differences in overall body size, and especially by differences in head dimensions. The females can be separated by overall body dimensions and ventral terminalia shape and chaetotaxy.

Figures

Figures 19–39. Columbicola tschulyschman: (19) male genitalia; (20) female dorsal head; (21) female ventral terminalia. C. turturis: (22) male genitalia; (23) female ventral terminalia. C. keleri: (24) male genitalia; (25) female ventral terminalia. C. guimaraesi: (26) male dorsal head; (27) male genitalia; (28) female dorsal head; (29) female ventral terminalia. C. grandiusculus: (30) male dorsal head; (31) male genitalia; (32) female ventral terminalia. C. vitiensis: (33) male genitalia; (34) female ventral terminalia. C. meinertzhageni: (35) male dorsal head; (36) female dorsal head; (37) male genitalia; (38) female ventral terminalia. C. browni: (39) male dorsal head.