Salina bidentata ( Handschin),

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: 32

publication ID

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

persistent identifier

http://treatment.plazi.org/id/03B13638-FF92-FFD5-1DBF-45E82381FF31

treatment provided by

Plazi

scientific name

Salina bidentata ( Handschin)
status

 

Salina bidentata ( Handschin)  , 1927

Crematocephalus bidentatus Handschin, 1927: 112–113, Figs. 11–12View FIGURES 1 – 12. 1 – 4 ( Costa Rica). Handschin 1928: 250, 251, 261, key and description.

Salina bidentata Denis 1931: 150  , new combination, compared to S. wolcotti  . Yosii 1956: 76, compared to S. celebensis  . Delamare, 1951: 288, Fig. 10View FIGURES 1 – 12. 1 – 4 a, b, illustration only ( Ivory Coast). Salmon 1964: 547, synonymy. Mitra 1966: 72, compared to S. nigrocephala  . Rapoport 1971, 112, distribution based on published records. Mitra 1974: 360, suggestion it may belong in Pseudosalina. Christiansen & Bellinger 1980: 1006, compared to S. beta  . Jacquemart 1982: 19, compared to S. panamae  . Gruia 1983: 201, compared to S. ventricolor  . Mari Mutt 1987 b: 406, possible synonym with S. wolcotti  . Mari Mutt & Bellinger 1990: 125, records in Neotropical region. Palacios-Vargas 1992: 26, 28, mention. Christiansen & Bellinger 1998: 1128, compared to S. beta  .

Salina bidenticulata Szeptycki, 1979: 80  (lapsus calami?) comment on bothriotrichal pattern.

Material Examined: Costa Rica. Cartago, N 9 ° 51.25, W 83 ° 50.36, elevation 1390 m; beating Hibiscus  bushes; 30 July 2004; 2 slide-mounted individuals. As above, but on chayote ( Sechium edule  ); R. Lain coll.; 1 individual on slide. USA. Florida, Indian River Co., Vero Beach; beating grasses along road at intersection of Fourth Street and Rd. 609; September 2001; P. Armbuster, coll.; 1 individual on slide. Broward Co., Ft. Lauderdale, N 26 ° 0 8, W 80 ° 17; beating grasses along road; September 2001, P. Armbuster, coll.; 1 individual on slide. Buena Vista; on lima beans; 8 December 1982; H. Weeks & D. J. Vandel; 1 juvenile, slide mounted.

Description: Length to 1.7 mm (smallest individual= 0.8 mm; average=1.2; n= 4). Body yellow, without blue pigment dorsally; ventrally with scattered blue dots concentrated on posterior part of head and abdominal sterna; antennae amber, with narrow apical blue rings on each segment; legs amber with apical rings on femora and tibia. Ant. 1 ( Fig. 20View FIGURES 13 – 24) with 3 (2 in smallest individual) macrosetae. Prelabral setae 2. Postlabial columns CG with 5 normal ciliate setae (1 individual 5 + 6 setae). Macrochaetotaxy of Th. 2 –Abd. 2 ( Figs. 21– 24View FIGURES 13 – 24) as 6 (5–7), 6, 4 (2–4), 2; Th. 2 macroseta 7 absent and 5 reduced in some individuals, socket of macroseta 8 smaller than others. Abd. 4 with 3 posterior setae. Number of setae in trochanteral organ varies with specimen size from 7 in smallest individual to 14 setae in largest individual. Claw complex normal for the genus, unguis with 1–2 distal unpaired teeth; most distal unpaired tooth always inconspicuous, sometimes apparently absent. Collophore anterior face with 4 macro- and 2 microsetae; lateral setae 11–13; posterior face with 2 + 2 setae (smallest individual with 1 + 1 setae). Proportion of dens:manubrium≈ 1.3 for largest individual and ≈ 1 .0 for others; proportion dental vesicle/mucro ≈ 1 .0 irrespective of body size. Mucro with basal dorsal denticle.

Remarks: The characters separating S. bidentata  from S. wolcotti  are discussed in the remarks to S. wolcotti  . In chaetotaxy, S. bidentata  is most similar to S. thibaudi  n. sp., but differs in having only two prelabral setae, in the absence of peg-like smooth setae along head ventral groove, absence of macroseta 2 and presence of macroseta 7 on Th. 2 and the number of setae on the posterior face of the collophore. Salina bidentata  apparently differs from S. ventricolor  in chaetotaxy of Th. 2 –Abd. 1, but see comments under S. wolcotti  .

The individual from Buena Vista, Florida, is a small juvenile originally identified by Wray as S. wolcotti  (the logical identification since Florida has more faunistic affinities with the Caribbean than with Central America). The specimen is partially folded over and most characters are difficult to see. The only unambiguous character distinguishing wolcotti  and bidentata  , the chaetotaxy of Th. 3, is clearly visible and this individual has 6 macrosetae arranged as in Figure 23View FIGURES 13 – 24, hence I have identified this specimen as S. bidentata  . Hall (1988) reported S. beta  from sugarcane in Florida, but the colour description is consistent with S. bidentata  , not S. beta  . It is likely that the species was identified using the key in Christiansen & Bellinger (1980), and the first couplet in the key separates species using the shape of the mucro.

Delamare-Deboutteville (1951 a) reported S. bidentata  from Ivory Coast, but the presence of this species in Africa seems doubtful. Two characters illustrated in Delamare-Deboutteville ( 1951 a: p. 69, Fig. 18View FIGURES 13 – 24) suggest the African species is different from S. bidentata  : the very long antennae in the African specimen suggests it may belong in Pseudosalina, unfortunately, the mucro was not illustrated; in the African species Abd. 3 has the paired bothriotricha in a posterior position whereas in S. bidentata  (and in all other New World Salina  for which this character has been illustrated) the paired bothriotricha are anterior (e.g., Mari Mutt 1987 a, Fig. 28View FIGURES 25 – 33).

Kingdom

Animalia

Phylum

Arthropoda

Class

Entognatha

Order

Collembola

Family

Paronellidae

Genus

Salina

Loc

Salina bidentata ( Handschin)

Soto-Adames, Felipe N. 2010
2010
Loc

Salina bidenticulata

Szeptycki 1979: 80
1979
Loc

Salina bidentata

Christiansen 1998: 1128
Palacios-Vargas 1992: 26
Mari 1990: 125
Mari 1987: 406
Gruia 1983: 201
Jacquemart 1982: 19
Christiansen 1980: 1006
Mitra 1974: 360
Mitra 1966: 72
Salmon 1964: 547
Yosii 1956: 76
Delamare 1951: 288
Denis 1931: 150
1931