Brachystomella porcus

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Queiroz G, Mendonça M (2013) New species of Brachystomellidae and characterization of Micronella porcus (Denis, 1933) from Brazil. ZooKeys 316 : 81–98, doi. Versioned wiki page: 2013-07-12, version 35650, https://species-id.net/w/index.php?title=Brachystomella_porcus&oldid=35650 , contributors (alphabetical order): Pensoft Publishers.

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BibTeX:

@article{Queiroz2013ZooKeys316,
author = {Queiroz, Gabriel C. AND Mendonça, Maria Cleide de},
journal = {ZooKeys},
publisher = {Pensoft Publishers},
title = {New species of Brachystomellidae and characterization of Micronella porcus (Denis, 1933) from Brazil},
year = {2013},
volume = {316},
issue = {},
pages = {81--98},
doi = {10.3897/zookeys.316.4869},
url = {http://www.pensoft.net/journals/zookeys/article/4869/abstract},
note = {Versioned wiki page: 2013-07-12, version 35650, https://species-id.net/w/index.php?title=Brachystomella_porcus&oldid=35650 , contributors (alphabetical order): Pensoft Publishers.}

}

RIS/ Endnote:

TY - JOUR
T1 - New species of Brachystomellidae and characterization of Micronella porcus (Denis, 1933) from Brazil
A1 - Queiroz G
A1 - Mendonça M
Y1 - 2013
JF - ZooKeys
JA -
VL - 316
IS -
UR - http://dx.doi.org/10.3897/zookeys.316.4869
SP - 81
EP - 98
PB - Pensoft Publishers
M1 - Versioned wiki page: 2013-07-12, version 35650, https://species-id.net/w/index.php?title=Brachystomella_porcus&oldid=35650 , contributors (alphabetical order): Pensoft Publishers.

M3 - doi:10.3897/zookeys.316.4869

Wikipedia/ Citizendium:

<ref name="Queiroz2013ZooKeys316">{{Citation
| author = Queiroz G, Mendonça M
| title = New species of Brachystomellidae and characterization of Micronella porcus (Denis, 1933) from Brazil
| journal = ZooKeys
| year = 2013
| volume = 316
| issue =
| pages = 81--98
| pmid =
| publisher = Pensoft Publishers
| doi = 10.3897/zookeys.316.4869
| url = http://www.pensoft.net/journals/zookeys/article/4869/abstract
| pmc =
| accessdate = 2020-03-07

}} Versioned wiki page: 2013-07-12, version 35650, https://species-id.net/w/index.php?title=Brachystomella_porcus&oldid=35650 , contributors (alphabetical order): Pensoft Publishers.</ref>

See also the citation download page at the journal.


Taxonavigation

Ordo: Poduromorpha
Familia: Brachystomellidae
Genus: Brachystomella

Name

Brachystomella porcus Denis, 1933Wikispecies linkPensoft Profile

Examined material

One female on slide, Label: Nº 2037 CM/MNRJ (C), Alto Caparaó, MG, Brasil, Queiroz, G.C. leg, 12.iv.2011, 20°26'7"S, 41°47'54"W; 1 female on slide and 2 specimens in ethanol, Nº 2041 CM/MNRJ (D), Alto Caparaó, MG, Brasil, Queiroz, G.C. leg, 13.iv.2011, 20°26'7"S, 41°47'54"W; 1 female and 1 juvenile on slides, Label: Nº 2353 CM/MNRJ (C and E), Alto Caparaó, MG, Brasil, Queiroz, G.C. leg, 11.iv.2012, 20°26'7"S, 41°47'54"W; 1 young female and 1 juvenile on slides, Label: Nº 2354 CM/MNRJ (A and B), Alto Caparaó, MG, Brasil, Queiroz, G.C. leg, 11.iv.2012, 20°26'7"S, 41°47'54"W. Deposited at MNRJ, Rio de Janeiro, Brazil. Two specimens deposited at MNHN, Paris, France: 1 female on slide MNHN-EA011501; 1 female on slide, Label: MNHN-EA011500, Alto Caparaó, MG, Brasil, Queiroz, G.C. leg, 13.iv.2011, 20°26'7"S, 41°47'54"W.

Locality

Brasil, Minas Gerais: Alto Caparaó municipality, Parque Nacional do Caparaó (ICMBio), 20°26'7"S, 41°47'54"W, leaf litter and soil of “campos de altitude”, 2,700 m a.s.l.

Characterization of Brazilian specimens

Habitus typical of the genus. Body length range of specimens: 0.45–0.95 mm. Color in ethanol: white, no pigmentation.
Ratio head diagonal: antenna = 1:0.57. Ant I with 7 chaetae. Ant II with 12 chaetae. Ant III and IV fused dorsally, ventral separation marked. Sensory organ of Ant III with two club-shaped sensilla; two longer and subcylindrical guard sensilla, the dorsal is stouter than ventral guard sensilla; ventral microsensillum present (Figs 29–31). Ant IV with simple apical bulb and six slender sensilla; dorsolateral microsensillum present; subapical organite round; with about 30 ventral chaetae (Fig. 30).
Without eyes. PAO bearing 7–8 vesicles disposed as a rosette. Maxilla quadrangular with 6–7 teeth (Fig. 32). Labral formula: 2/2334. Labium typical of Brachystomella, with one papillated chaeta (L) and four proximal chaetae (Fig. 33). Head chaetotaxy as in Fig. 34. Chaetae a0 present, but some specimens with asymmetries; Oc chaetae 3+3. Dorsal chaetotaxy composed of smooth ordinary chaetae (15–20 µm) and longer sensilla (20–25 µm) that becomes longer towards distal segments of the body. Ratio ordinary chaetae: sensilla = 1:1.3. Th I with 2+2 chaetae; sensillar formula by half tergum: 022/211110 (Fig. 35). Chaetotaxy of legs I–III as follows: Scx I– 1, 2, 2; Scx II– 0, 2, 2; Cx– 3, 6, 7; Tr– 5, 5, 4; Fe– 12, 11, 10; Tita– 19, 19, 18. Tenent hair on tibiotarsi acuminated; unguis without tooth (Fig. 36). Ventral tube with 3+3 chaetae. Without tenaculum. Furca completely absent, but with a well-defined furcal area with six chaetae (Figs 37–38). Abd VI with 4+4 chaetae on dorsal side and one unpaired chaetae; with 3+3 chaetae on the ventral side (Fig. 39). Each anal valve with 12–13 chaetae and 2 hr chaetae; (Fig. 40). Female genital plate as in Fig. 41.

Remarks

The examined specimens from Minas Gerais State, Brazil, fit the description of the Neotropical species Micronella porcus. The six sensilla on Ant IV, the club-shaped sensilla on Ant III organ, the 6–8 vesicles on PAO and the toothless unguis are the main characters that define the species. The description above adds important characters such as head and dorsal body chaetotaxy and also the number of chaetae on furcal area to the original description.

Taxon Treatment

  • Queiroz, G; Mendonça, M; 2013: New species of Brachystomellidae and characterization of Micronella porcus (Denis, 1933) from Brazil ZooKeys, 316: 81-98. doi

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