labellum [FBbt_00004531]
The broadened, cushion-like, most distal part of the proboscis. It consists of two regions; its lateral surface has a hemispherical, on which there are approximately 33-34 gustatory (chemosensory) and two mechanosensory bristles. The gustatory bristles are arranged into three ill-defined rows of 10-11 bristles: two medial and one located peripherally. The mechanosensory bristles are located in the most dorsolateral area of the labella surface and are shorter than the gustatory sensilla. The inner (medial) surface bears a series of open collecting channels, the pseudotrachea, that converge medially and conduct food to the tip of the labrum. Taste pegs are present in between the pseudotrachea, with 30-40 on each side. There is significant sexual dimorphism on the size of the labellum, with the male labellum being bigger than the female, in the anterior-posterior axis (Shanbag et al., 2001).
Note
This page displays the raw VFB json record for this term. Please use the link below to open the term inside the Virtual Fly Brain viewerVFB Term Json
{
"term": {
"core": {
"iri": "http://purl.obolibrary.org/obo/FBbt_00004531",
"symbol": "",
"types": [
"Entity",
"Adult",
"Anatomy",
"Class"
],
"short_form": "FBbt_00004531",
"label": "labellum"
},
"description": [
"The broadened, cushion-like, most distal part of the proboscis. It consists of two regions; its lateral surface has a hemispherical, on which there are approximately 33-34 gustatory (chemosensory) and two mechanosensory bristles. The gustatory bristles are arranged into three ill-defined rows of 10-11 bristles: two medial and one located peripherally. The mechanosensory bristles are located in the most dorsolateral area of the labella surface and are shorter than the gustatory sensilla. The inner (medial) surface bears a series of open collecting channels, the pseudotrachea, that converge medially and conduct food to the tip of the labrum. Taste pegs are present in between the pseudotrachea, with 30-40 on each side."
],
"comment": [
"There is significant sexual dimorphism on the size of the labellum, with the male labellum being bigger than the female, in the anterior-posterior axis (Shanbag et al., 2001)."
]
},
"query": "Get JSON for Class",
"version": "44725ae",
"parents": [
{
"symbol": "",
"iri": "http://purl.obolibrary.org/obo/FBbt_00007288",
"types": [
"Entity",
"Anatomy",
"Class"
],
"short_form": "FBbt_00007288",
"label": "integumentary specialization"
}
],
"relationships": [
{
"relation": {
"iri": "http://purl.obolibrary.org/obo/RO_0002202",
"label": "develops from",
"type": "develops_from"
},
"object": {
"symbol": "",
"iri": "http://purl.obolibrary.org/obo/FBbt_00001764",
"types": [
"Entity",
"Anatomy",
"Class",
"Larva"
],
"short_form": "FBbt_00001764",
"label": "labial disc"
}
},
{
"relation": {
"iri": "http://purl.obolibrary.org/obo/BFO_0000050",
"label": "is part of",
"type": "part_of"
},
"object": {
"symbol": "",
"iri": "http://purl.obolibrary.org/obo/FBbt_00004542",
"types": [
"Entity",
"Adult",
"Anatomy",
"Class"
],
"short_form": "FBbt_00004542",
"label": "distiproboscis"
}
}
],
"xrefs": [],
"anatomy_channel_image": [],
"pub_syn": [
{
"synonym": {
"scope": "has_exact_synonym",
"label": "labial palpus",
"type": ""
},
"pub": {
"core": {
"symbol": "",
"iri": "http://flybase.org/reports/FBrf0007734",
"types": [
"Entity",
"Individual",
"pub"
],
"short_form": "FBrf0007734",
"label": "Ferris, 1950, Demerec, 1950: 368--419"
},
"FlyBase": "",
"PubMed": "",
"DOI": ""
}
},
{
"synonym": {
"scope": "has_exact_synonym",
"label": "labium",
"type": ""
},
"pub": {
"core": {
"symbol": "",
"iri": "http://flybase.org/reports/FBrf0007734",
"types": [
"Entity",
"Individual",
"pub"
],
"short_form": "FBrf0007734",
"label": "Ferris, 1950, Demerec, 1950: 368--419"
},
"FlyBase": "",
"PubMed": "",
"DOI": ""
}
},
{
"synonym": {
"scope": "has_exact_synonym",
"label": "labella",
"type": ""
},
"pub": {
"core": {
"symbol": "",
"iri": "http://flybase.org/reports/FBrf0246028",
"types": [
"Entity",
"Individual",
"pub"
],
"short_form": "FBrf0246028",
"label": "McKellar et al., 2020, eLife 9: e54978"
},
"FlyBase": "FBrf0246028",
"PubMed": "32584254",
"DOI": "10.7554/eLife.54978"
}
}
],
"def_pubs": [
{
"core": {
"symbol": "",
"iri": "http://flybase.org/reports/FBrf0166419",
"types": [
"Entity",
"Individual",
"pub"
],
"short_form": "FBrf0166419",
"label": "Zombori and Steinmann, 1999, Handbuch der Zoologie IV. Band: Arthropoda, 2. Halfte: Insecta, Teil: 34.: 405pp"
},
"FlyBase": "",
"PubMed": "",
"DOI": ""
},
{
"core": {
"symbol": "",
"iri": "http://flybase.org/reports/FBrf0137194",
"types": [
"Entity",
"Individual",
"pub"
],
"short_form": "FBrf0137194",
"label": "Shanbhag et al., 2001, Cell Tissue Res. 304(3): 423--437"
},
"FlyBase": "",
"PubMed": "11456419",
"DOI": "10.1007/s004410100388"
},
{
"core": {
"symbol": "",
"iri": "http://flybase.org/reports/FBrf0007734",
"types": [
"Entity",
"Individual",
"pub"
],
"short_form": "FBrf0007734",
"label": "Ferris, 1950, Demerec, 1950: 368--419"
},
"FlyBase": "",
"PubMed": "",
"DOI": ""
},
{
"core": {
"symbol": "",
"iri": "http://flybase.org/reports/FBrf0246028",
"types": [
"Entity",
"Individual",
"pub"
],
"short_form": "FBrf0246028",
"label": "McKellar et al., 2020, eLife 9: e54978"
},
"FlyBase": "FBrf0246028",
"PubMed": "32584254",
"DOI": "10.7554/eLife.54978"
},
{
"core": {
"symbol": "",
"iri": "http://flybase.org/reports/FBrf0074012",
"types": [
"Entity",
"Individual",
"pub"
],
"short_form": "FBrf0074012",
"label": "Nayak and Singh, 1983, Int. J. Insect Morph. Embryol. 12(5--6): 273--291"
},
"FlyBase": "",
"PubMed": "",
"DOI": ""
},
{
"core": {
"symbol": "",
"iri": "http://flybase.org/reports/FBrf0211916",
"types": [
"Entity",
"Individual",
"pub"
],
"short_form": "FBrf0211916",
"label": "Miyazaki and Ito, 2010, J. Comp. Neurol. 518(20): 4147--4181"
},
"FlyBase": "",
"PubMed": "20878781",
"DOI": "10.1002/cne.22433"
}
]
}
Feedback
Was this page helpful?
Glad to hear it! Please tell us how we can improve.
Sorry to hear that. Please tell us how we can improve.