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mx id: 1037 | OBO id: HAO:0000160 | URI: http://purl.obolibrary.org/obo/HAO_0000160
axillula synonyms: axillar pit, parascutellum
Defined (both definition and relationships must be met)
Definition:
The area that is located laterally on the mesoscutellum and is limited anteriorly by the scutoscutellar suture and medially by the axillular line.
written by: Miko, I. 2009. -2019 Curator. Hymenoptera Anatomy Ontology.

Relationships / properties:
The axillula is a area.
The axillula is part of the cuticle. The axillula is part of the mesoscutellum.

Figures
Perilampus tristis Mayr, 1905
Telenomus
Gryonoides
Nixonia
Trimorus flavipes (Walker)
Cecidostiba semifascia
Copyright ©Lars Krogmann

Label usage (sensu)
axillula by Gibson, G. A. P. 1985. Some pro- and mesothoracic structures important for phylogenetic analysis of Hymenoptera, with a review of the terms used for the structures. Canadian Entomologist 117:1395-1443.
axillar pit by Masner, L., and J. L. García. 2002. The genera of Diapriinae (Hymenoptera: Diapriidae) in the new world. Bulletin of the American Museum of Natural History 268:107-138.
parascutellum by Gibson , G. A. P., J. D. Read , and R. Fairchild. 1998. Chalcid wasps (Chalcidoidea): illustrated glossary of positional and morphological terms ..
axillar pit by Curators, H. A. O. 2009. The Hymenoptera Anatomy Ontology Curation Team. Hymenoptera Anatomy Ontology.
axillula by Miko, I. 2009. -2019 Curator. Hymenoptera Anatomy Ontology.
axillula by Thomson, C. G. 1876. Hymenoptera Scandinaviae Part 4 Pteromalus., 309 pp.
parascutellum by Grandi, G. 1921. Ricerche sul gen Philotrypesis Forst (Hymenoptera - Chalcididae). Bollettino del Laboratorio di Zoologia generale e agraria della Reale Scuola superiore d'agricoltura in Portici 15:33-190.
Comments and tags
comment added over 9 years ago by Matt Yoder
Ronquist: Although this term is primarily of use in the Apocrita, a homologous region is distinguishable in many sawflies. Miko: the axillar pit of Masner and Garcia is synonym of axillula. Bot the pit and the definition is incorrect, though (pit: point-like, has to corespond to interal apophysis; the pit is not on the axilla as in the definition of Masner and Garcia.
  Reference: None provided.
  Cross reference: None provided.

alternative definition added over 9 years ago by Istvan Miko
Lateral, usually more or less vertical subdivision of the scutellum differentiated from the rest of the scutellum by the axillular groove/carina or sublateral groove and from the axilla by the scutoscutellar suture.
  Reference: Gibson , G. A. P., J. D. Read , and R. Fairchild. 1998. Chalcid wasps (Chalcidoidea): illustrated glossary of positional and morphological terms ..
  Cross reference: None provided.

alternative definition added about 10 years ago by Istvan Miko
The central pit of the axilla.
  Reference: Masner, L., and J. L. García. 2002. The genera of Diapriinae (Hymenoptera: Diapriidae) in the new world. Bulletin of the American Museum of Natural History 268:107-138.
  Cross reference: None provided.

alternative definition added about 10 years ago by Istvan Miko
Anterolateral region of the mesoscutellum. The axillula is the region between the lateral scutellar bar, or the fold between the lateral and dorsal surfaces of the mesoscutellum when the scutellar bar is absent, and the often raised anterolateral margin of the mesoscutellum. The axillula ends anteriorly in the scutoscutellar sulcus.
  Reference: Ronquist, F., and G. Nordlander. 1989. Skeletal morphology of an archaic cynipoid, Ibalia rufipes (Hymenoptera: Ibaliidae). Entomologica Scandinavica, Supplement 33:1-60.
  Cross reference: None provided.


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