obsolete basiconic sensillum LB-I 2009-07-06T04:50:42Z https://github.com/FlyBase/drosophila-anatomy-developmental-ontology/issues/1312 true Large olfactory basiconic sensillum of antennal segment 3, with a pore size of about 50nm and a pore density of about 19 pores per square micrometer, innervated by 2 highly branched ORN dendrites. sensillum basiconicum LB-I Obsoleted as this corresponds to ab2, as more are present in female than male (Shanbhag et al., 1999; Grabe et al., 2016 - FBrf0233453). FBbt:00007355 fly_anatomy.ontology antennal basiconic sensillum ab2