Scutigerellidae

Camacho, Miguel Domínguez, 2010, New insights on the genus Scolopendrelloides Bagnall 1913 (Scutigerellidae, Symphyla) with descriptions of two new species, Zootaxa 2558, pp. 48-60: 58-59

publication ID

http://doi.org/ 10.5281/zenodo.196970

DOI

http://doi.org/10.5281/zenodo.5678899

persistent identifier

http://treatment.plazi.org/id/03BF8920-F031-FFC9-8A84-F9E5179EFE3A

treatment provided by

Plazi

scientific name

Scutigerellidae
status

 

Key to the genera of Scutigerellidae   using SEM

A new determination key to the genera of the family Scutigerellidae   is proposed here, which is mainly intended for observations using SEM. Accordingly, features which are easily observed at a first glance are considered first. Before using this key it is important to take it into account the aforementioned exceptions with some Hanseniella   species above mentioned, such as H. imerina   , H. remy   , H. modesta   and H. incisa   .

1. Cuticle of the tergites pubescent ( Fig. 6 View FIGURE 6 B, C)............................................................................................................... 2

- Cuticle of the tergites glabrous ( Fig. 6 View FIGURE 6 A, 5) ................................................................................................................. 5

2. Anterior tergites convex porsteriorly, with antero-lateral macrochaetae prominent, usually long. Head rounded, as broad as long or broader than long. Central rod posteriorly ends in a knob in the middle of the head ( Fig. 6 View FIGURE 6 B) ........ 3

- Anterior tergites not convex posteriorly; with posterior margins straight, emarginated or bilobed, and with antero- lateral macrochaetae not very prominent. Head a bit longer than broad ...................................................................... 4

3. Anterior tergites with two postero-lateral rounded lobes separated by a median indentation and posterior margins

crenate. Head somewhat rounded ................................................................................................... Scopoliella Scheller - Anterior tergites straight, emarginated or bilobed, without crenate posterior margins. Head heart-shaped ( Fig. 6 View FIGURE 6 C)... .......................................................................................................................................................... Scutigerella   Ryder

4. Medioventral process (or processes) present between each pair of coxal sacs belonging to legs 5–9 ........................... ......................................................................................................................................................... Millotellina   Jupeau

- No such medioventral processes present between the coxal sacs .................................................. Hanseniella   Bagnall

5. Tergites emarginated posteriorly. Head heart-shaped, a bit longer than broad. ( Fig. 6 View FIGURE 6 A) .. Scolopendrelloides Bagnall  

- Anterior tergites convex posteriorly. Head somewhat rounded, about as broad as long ( Fig. 5 View FIGURE 5 ) .. Hanseniella Bagnall