first instar larval stage [FBdv_00005337]

The first larval instar begins at hatching and ends at the first larval molt. Anterior spiracles are not yet present; posterior spiracles have two openings each. Salivary glands are very small and all cells are uniform in size. Mouth hooks typically have one tooth. Duration at 25 degrees C: approximately 25 hours (24-49 hours after egg laying; 0-25 hours after hatching). Temporal ordering number - 410.
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Open first instar larval stage in VFB

VFB Term Json

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            "symbol": "",
            "types": [
                "Entity",
                "Class"
            ],
            "short_form": "FBdv_00005337",
            "label": "first instar larval stage"
        },
        "description": [
            "The first larval instar begins at hatching and ends at the first larval molt. Anterior spiracles are not yet present; posterior spiracles have two openings each. Salivary glands are very small and all cells are uniform in size. Mouth hooks typically have one tooth. Duration at 25 degrees C: approximately 25 hours (24-49 hours after egg laying; 0-25 hours after hatching)."
        ],
        "comment": [
            "Temporal ordering number - 410."
        ]
    },
    "query": "Get JSON for Class",
    "version": "44725ae",
    "parents": [
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    ],
    "relationships": [
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        },
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                "label": "embryonic stage 17"
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        },
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                "label": "embryonic stage 17(iv)"
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        },
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                "label": "late embryonic stage"
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        },
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                "type": "immediately_precedes"
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                "label": "second instar larval stage"
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            "relation": {
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                "label": "substage_of",
                "type": "substage_of"
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    "xrefs": [],
    "anatomy_channel_image": [],
    "pub_syn": [
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            "synonym": {
                "scope": "has_exact_synonym",
                "label": "L1",
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                "FlyBase": "",
                "PubMed": "",
                "DOI": ""
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        },
        {
            "synonym": {
                "scope": "has_exact_synonym",
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                "type": ""
            },
            "pub": {
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    "def_pubs": [
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}