Salina wolcotti Folsom, 1927, Folsom, 1927

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: 29-31

publication ID

http://doi.org/ 10.5281/zenodo.193142

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http://treatment.plazi.org/id/03B13638-FF97-FFD7-1DBF-41B626F8F8D9

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scientific name

Salina wolcotti Folsom, 1927
status

 

Salina wolcotti Folsom, 1927  

Salina wolcotti Folsom, 1927: 11   –12, Figs. 61–67 ( Puerto Rico). Wolcott 1933: 241 –242, biology ( Puerto Rico). Essig 1942: 82, mention. Fennah 1947: 64, Fig. 49 B, association with corn ( Virgin Islands). Wolcott, 1948: 33, biology ( Puerto Rico). Paclt 1956: 125, mention. Wray 1959: 68, new records (Florida, USA & Costa Rica). Guagliumi 1962: 450 –452, on sugarcane ( Venezuela). Martin & Gregory 1962: 297, biology ( Puerto Rico). Metcalfe 1964: 24, association with sugarcane ( Jamaica). Mari Mutt 1978: 5, repository of syntypes. Massoud & Thibaud, 1980: 604, mention. Mari Mutt 1982: 32, catalog of Collembola   of Puerto Rico. Mari Mutt 1987 b: 406, Fig. 57, taxonomic status. Escher & Lounibos, 1993: 483, association with Pistia stratiotes   (Florida). Carithers 1997: 148, as prey of hymenopteran Microstigmus comes   ( Costa Rica). Heckman 2000: 287, Fig. 1447, key to Salina   species. Palacios- Vargas 2000: 5, catalog ( México). Palacios-Vargas 2003: 221, 223, mention ( México).

Material Examined: Puerto Rico. Río Piedras; 23 February 1920; G. N. Wolcott, coll.; 1 slide-mounted syntype. Bayamón; 5 May (year not included); G. N. Wolcott, coll.; 1 slide-mounted syntype. Toro Negro Commonwealth Forest, N 18 ° 10.197, W 66 ° 29.536; beating grasses and Impatiens   along road (PR – 143) and along El Bolo trail, near forest administration building; 29 July 1999; 9 individuals on slides

Description: The condition of the slide-mounted syntype from Bayamón is such that none of the diagnostic characters are visible. The syntype from Río Piedras clearly shows 2 macrosetae on Ant. 1, 5 setae along the cephalic groove and 3, 4, 2, 2 macrosetae on Th. 2 -Abd. 2. Only one prelabral seta is visible. Other potentially diagnostic characters included in Table 1 (e.g., posterior setae on Abd. 4 and posterior setae on collophore) cannot be discerned on the cleared specimen. Therefore, the description that follows is based on the specimen collected in Toro Negro.

Length to 1.4 mm (smallest individual= 1.1 mm; average=1.2 mm; n= 8). Original colour pattern described by Folsom (1927) and shown in Fig. 12 View FIGURES 1 – 12. 1 – 4 seen only in four poorly preserved syntypes (including the slidemounted syntype from Bayamón listed above). Freshly collected specimens background colour yellowish green, which fades to white in individuals preserved in alcohol for a long time (> ten years). Most individuals from Toro Negro and the syntype from Río Piedras without dorsal blue markings, except for a blue dot between antennae; some specimens with blue pigment distributed as described for populations of S. tristani   from Puerto Rico (cf. Mari Mutt 1987 b, Fig. 53) and S. ventricolor   from Cuba ( Fig. 11 View FIGURES 1 – 12. 1 – 4 ), forming a narrow band along the anterior and lateral margins of Th. 2 which extends to margins of Th. 3 or Abd. 1; blue pigment forming discreet dots distributed on postero-ventral field of head and on sternal plate of abdomen that accommodates folded furcula. Antennae amber, tip of each segment with dark blue ring; legs amber, lighter than antennae. Collophore and furcula white. Ant. 1 with 2 dorsal macrosetae ( Fig. 13 View FIGURES 13 – 24 ). Prelabral setae 2. Postlabial column CG with 5 (3–6) ciliate acuminate setae, most individuals (6 of 9) with asymmetric number of setae. Tergal chaetotaxy of Th. 2 –Abd. 2 as 3 (3–5), 4 (2–5), 2 (2–3), 2 ( Figs. 14–18 View FIGURES 13 – 24 ): Th. 2 setae numbered 3–5 in Figure 15 View FIGURES 13 – 24 sometimes reduced or absent, seta 3 most often present; Th. 3 setae 2 and 5 b absent in 2 and 1 individuals, respectively; Abd. 4 with 3 posterior setae ( Fig. 9 View FIGURES 1 – 12. 1 – 4 ). Trochanteral organ with 14 (11–18) setae. Unguis with 2 distal unpaired teeth. Collophore anterior face with 3 microsetae and 3 distal macrosetae; lateral setae ( Fig. 19 View FIGURES 13 – 24 ) 10–11; posterior face with 1 + 1 microsetae. Proportions of dens/manubrium≈ 1, proportion of dental vesicle/mucro≈ 1. Mucro with dorso-basal denticle ( Fig. 8 View FIGURES 1 – 12. 1 – 4 ).

Remarks: Salina wolcotti   differs from S. bidentata   in the number of dorsal macrosetae on Ant. 1, Th. 2 – Abd. 1 (2,3,4,2, respectively in wolcotti   ; 3,6, 6,4 in bidentata— see Table 1 for variation range) and number of posterior setae on collophore (1 + 1 in wolcotti   ; 2 + 2 in bidentata   ). Salina thibaudi   n. sp. has identical amoeboid colour pattern as illustrated for S. wolcotti   by Folsom (1927) but it differs in practically all important chaetotaxic characters, including the number of prelabral setae (2 in S. wolcotti   , 4 in S. thibaudi   ), the number of macrosetae on Ant. 1, Th. 2 –Abd. 1, number of posterior setae on Abd. 4, and posterior setae of collophore as shown in Table 1. Salina wolcotti   differs from S. ventricolor   in the number of macrosetae on Th. 2 (3 in wolcotti   , 4 in ventricolor   ), pattern of macrosetae on Th. 3 (seta 5 b present and 5 absent in wolcotti   whereas 5 b absent and 5 present in ventricolor   ), number of anterior setae on collophore (6 in S. wolcotti   ; 7 in ventricolor   ) and possibly in head chaetotaxy. However, these differences may be illusory since no variation in number of setae was reported for S. ventricolor   . With the exception of chaetotaxy on Th. 3 and anterior face of collophore, all characters described for S. ventricolor   fall within the range of variation observed in the nine individuals of S. wolcotti   studied from Puerto Rico. Closer examination of S. ventricolor   populations may show this form to be a junior synonym of S. wolcotti   . Salina wolcotti   differs from S. beta   in colour pattern, number of macrosetae on Th. 3 –Abd. 1, and number of posterior setae on Abd. 4.

The syntypic series of S. wolcotti   comprises specimens collected at unspecified localities in Punta Cangrejos (Carolina), Río Piedras, Bayamón, Isabela and Guánica. The syntypes deposited at the Illinois Natural History Survey were collected at Río Piedras and Bayamón, but the accompanying labels do not provide additional information about the localities. All the general localities mentioned above, except Carolina, were sampled in the late 1970 or early 1980 by Mari Mutt (1987 b) or the author, but the only species collected at these localities was S. tristani   . Based on the redescription and circumscription presented above, S. wolcotti   appears to be endemic to Puerto Rico, with a single population remnant in the central mountain region of the island. Records of S. wolcotti   from Florida, USA and Costa Rica ( Wray 1959) are probably referable to S. bidentata   or S. thibaudi   , n. sp. (see below), but I have not studied that material. Reports of S. wolcotti   from other localities around the Caribbean basin need to be confirmed using the characters described above.

Kingdom

Animalia

Phylum

Arthropoda

Class

Entognatha

Order

Collembola

Family

Paronellidae

Genus

Salina

Loc

Salina wolcotti Folsom, 1927

Soto-Adames, Felipe N. 2010
2010
Loc

Salina wolcotti

Palacios-Vargas 2003: 221
Heckman 2000: 287
Vargas 2000: 5
Carithers 1997: 148
Escher 1993: 483
Mari 1987: 406
Mari 1982: 32
Massoud 1980: 604
Mari 1978: 5
Metcalfe 1964: 24
Guagliumi 1962: 450
Martin 1962: 297
Wray 1959: 68
Paclt 1956: 125
Wolcott 1948: 33
Essig 1942: 82
Wolcott 1933: 241
Folsom 1927: 11
1927