50 BULLETIN 66, UNITED STATES NATIONAL MUSEUM. 



The chronology of the collecting of this species is as follows : 



Date. 



1906- 



April 26 



April 27 



April 28 



April 30 



May 1 



May 2 



May 3 



May 5 



May8 



May!) 



May 17 



May 22 



May 23 



Bees. 



Bees para- Bees, per cent 

 sitized. parasitized. 



Male. 



Fe- 

 male. 



Male. 



Fe- 

 male, 



Male. 



Fe- 

 male. 



83 

 100 



94 

 



75 

 100 



20 

 

 



18 

 

 

 9 



Parasites. 



Male Male I Fe- 

 pupae. exuviae, male. 



Total, 



Parasites, 

 per cent. 



Male. 



50 

 100 



65 

 



10 

 

 

 



Fe- 

 male. 



50 

 



35 

 100 



90 

 100 

 100 

 100 



100 



100 



STYLOPS DOMINIQUEI Pierce. 



Dominique records an Andrena Jlessse at Xantes, France, in April 

 which contained four specimens of this species (Dominique, 1891). 



STYLOPS MELITT/E Kirby (Champion). 



Between April 24 and May 5, 1900, and on May 7, 8, 12, and 13, 

 1899, between 7.30 and 9.30 a. m., in his garden at Woking, England, 

 Champion took males of this species all flying in the hot sun. "Its 

 white wings and sooty black body, as well as its peculiar rapid hover- 

 ing flight, make it a conspicuous object" (Champion, 1899, 1900). 



STYLOPS MELITTjE Kirby (Chitty). 



On May 2, 1900, at Faversham, England, Chitty took a male in his 

 garden (Champion, 1900). About 10 a. m., May 21, 1902, he collected 

 another, and records having found a bee with male exuvium in March. 

 Concerning the flight he says: "My specimen rose and fell up and 

 down the hedge, its wings never ceasing to vibrate until it was bot- 

 tled." 



STYLOPS PACKARDI Pierce. 



On April 29, 1864, at Salem, Massachusetts, Packard took a male 

 flying briskly in company with a stylopized Andrena placida Smith at 

 the flowers of Mezercon. 



STYLOPS SPENCII Pickering. 



After keeping specimens of Andrena tibialis (atriceps) for twenty 

 days in a breeding cage Smith (1875) found one that contained a male 

 Stylops which shortly afterwards emerged. Enock (1875) collected 



