The misidentification of an NP GAL4 line was recently discovered in three papers from my lab.
We initially reported that the NP2631 line targets the male-specific P1 neurons that function in male courtship behavior. This line is correctly described in:
•	Yu et al. (FBrf0211884) Cellular Organization of the Neural Circuit that Drives Drosophila Courtship Behavior. Curr. Biol.. 2010; 20:1602--1614 
•	von Philipsborn et al. (FBrf0224028) Cellular and Behavioral Functions of fruitless Isoforms in Drosophila Courtship. Curr. Biol.. 2014; 24:242--251 
Unfortunately, we incorrectly described this line as NP2361 in:
•	von Philipsborn et al. (FBrf0212984) Neuronal control of Drosophila courtship song. Neuron. 2011; 69:509 —522
and propagated this error into two further papers:
•	Bath et al. (FBrf0225494) FlyMAD: rapid thermogenetic control of neuronal activity in freely walking Drosophila. Nat. Methods. 2014; 11:756--762 
•	Ribeiro et al. (FBrf0239559) Visual Projection Neurons Mediating Directed Courtship in Drosophila. Cell. 2018; 174:607--621.e18 
We apologize to any researchers inconvenienced by this error.