Salina beta Christiansen and Bellinger, 1980

Soto-Adames, Felipe N., 2010, Review of the New World species of Salina (Collembola: Paronellidae) with bidentate mucro, including a key to all New World members of Salina, Zootaxa 2333, pp. 26-40 : 35

Salina beta Christiansen and Bellinger, 1980

Salina beta Christiansen & Bellinger 1980: 1103, 1104 , 1106, Fig. 819 (California, USA), original description and key. Yoshii 1983: 16, key, new species group. Hall 1988: 141, on sugarcane (Florida, USA), possibly a misidentification, see remarks under S. bidentata . Christiansen & Bellinger 1998: 1125, 1126, 1128, Fig. 819, key and description.

Material Examined: USA. California, Stanislaus Co., Modesto; lawn; 29 September 1961; H. Sinclair, coll. Holotype on one slide, California Department of Agriculture # 61J2–105, deposited at the California Academy of Sciences (entomology type # 15020).

Description: The following additions to the description of the species are based on the holotype. Length of holotype 1.1 mm. Colour pattern not seen but originally described as shown in Fig. 42 . Ant. 1 with 2 dorsal macrosetae. Prelabral setae 2. Postlabial column CG obstructed, but apparently all setae ciliate. Tergal macrochaetotaxy of Th. 2–Abd. 2 as 4, 6, 4, 2 ( Figs. 25–26 ): chaetotaxy of Th. 3 and Abd. 1 arranged as in S. bidentata . Abd. 4 with 4 posterior setae. Trochanteral organ with 13+14 setae. Unguis with only one distal unpaired tooth. Collophore anterior face with 3 macro- and 3 microsetae; lateral setae 15; posterior face with 1+1 setae. Proportions of dens/manubrium≈ 1, proportion dental vesicle/mucro ≈ 1. Mucro with basal dorsal denticle.

Remarks: Salina beta has a unique colour pattern that distinguishes it from all other New World species. In chaetotaxy S. beta is intermediate between S. wolcotti / ventricolor and bidentata / thibaudi , as shown in Table 1 .

Figures

FIGURES 34 – 42. All figures show left aspect. 34. Salina trilobata (after Schött 1896), 35. S. mulcahyae, Abd. 2; 36. S. banski, Th. 2; 37. S. decorata (after Mills 1932); 38. S. tristani, Th. 2; 39. S. dedoris / hermana, Th. 2; 40. S. dedoris (after Mari Mutt 1987 a); 41. S. hermana (after Mari Mutt 1987 a); 42. S. beta (after Christiansen & Bellinger 1980).

FIGURES 25 – 33. All figures show left aspect; arrowheads identify macrosetae absent or reduced in some individuals. 25 – 26 Salina beta; 25. Schematic distribution of macrosetae on Th. 2 – Abd. 2; 26. Th. 2; 27 – 33 S. thibaudi n. sp.; 27. Ant. 1; 28. Schematic distribution of macrosetae on Th. 2 – Abd. 2; 29. Th. 2; 30. Th. 3, setae 1 b, 2 b and 5 b are absent in most individuals examined; 31. Abd. 1; 32. Abd. 4, circles are macrosetae, dots are posterior setae; 33. Posterior chaetotaxy of collophore.