April, '03] ENTOMOLOGICAL NEWS. II9 



Maryland Hymenoptera (Aculeata)* 



By H. Iv. Vierkck. 



This list is based on a collection made by Mr. E. G. Van- 

 atta, of the Academy of Natural Sciences of Philadelphia, and 

 specimens sent for identification by Professor A. L- Quaintance. 

 Those from Chester town and Pomona were collected by Mr. 

 Vanatta. The rest are from the collection of the Maryland 

 Agricultural College. 



There is no list of Maryland Hymenoptera in our literature, 

 but this is true of most States, and there is a vast field for use- 

 ful, interesting work of this kind. It would be an incentive to 

 work if we had the species in each State listed. Again, ac- 

 curate records are needed ; too much stress cannot be laid on 

 the fact that an insect should be perfect, and accompanied by 

 locality, date and such notes as can be gathered about its habits. 

 In Hymenoptera a large number of the species are only known 

 vaguely to come from a State. We need more records as it is 

 only by their accumulation that the mist that enshrouds so 

 many facts will be dispelled, and there should be no hesitancy 

 in making known accurate notes. 



Bombus virginicus Oliv. 9 and ^ ^, College Park, Oct., Sept , 1893. 

 ^ ^, Chestertown, August 17, 1899. 



Bombus americanorum Fabr. ^ ^ and (J, Chestertown, Aug. 26, 1899, 

 some of these ^ ^ have the band of pubescence on anterior part 

 of thorax white. I have never noticed this on specimens from other 

 localities. College Park, ? 9, ^ ^, 6" d"- June 29, 1898, July 

 14, 1897, Oct., 1893. 



Bombus separatus Cress. J^ J^, Chestertown, Aug. 6, 1901, Aug. 13-17, 

 1899 Boonsboro, Aug. 5, 1898, ^ ^. 



Psithyrus laboriosus Fabr. 9 9 and J^ J*, College Park, Oct., 1893. 



Xenoglossa pruinosa Sav. (^ ^, College Park, July 14, 1898. 



Emphor bombiformis Cress. 9 and (j^, Chestertown, Aug. 12, 1901. 

 Co-types are from Kansas (Snow), Georgia and Virginia. Glou- 

 cester Co., N. J., Aug. 6 (Fox). 



Melissodes petplexa Cress. 9, College Park, Sept., 1893. 



Melissodes rustica Say. 9, College Park, Sept., 1893. 



Epeolus mercatus Fabr. cJ d^. College Park, Sept., 1893. 



Et>eolus remigatus Fabr. 9 cT, College Park, Sept., 1893, July 7, 1898. 



Xylocopa virginica Dru. 9, Chestertown, Aug. 12, 1901. 



Megachile mendica Cress. 9, College Park, Sept., 1893. 



Anthidium notatum Latr. 9> Chestertown, Aug. 12, 1901. 



