1 2 Psyche [February 



of the Boston Society of Natural History contains further speci- 

 mens of this species as follows: Woods Hole, Mass., 9 , July 25, 

 1903 (C. W. Johnson Coll.); Manomet, Mass., d", July 17, 1904, 

 and Falmouth, Mass., d', July 8, 1912 (Dr. J. A. Cushman Coll.). 

 In these two males, the terminal joint of the middle tarsi bears the 

 lateral patches of black pubescence characteristic of this species; 

 furthermore, there are at the base of the clypeus two black spots 

 narrowly connected in the middle. These points, together with 

 the white tegumentary bands of the abdomen, make the species 

 easy to recognize. So far as I have been able to discover, this 

 beautiful insect, originally described from Illinois, has also been 

 recorded from Wisconsin, Nebraska and central Texas. At Carlin- 

 ville. 111., Robertson found it sucking nectar on several flowers, 

 among them Lespedeza reticulata, while the females gathered pollen 

 exclusively from Cassia Chamcecrista} In Nebraska, it was taken 

 at the flowers of a Salvia, and Graenicher records it from Rud- 

 beckia hirta in Wisconsin. 



Xenoglossa pruinosa (Say). This handsome species is a com- 

 mon visitor of the flowers of cultivated squash at Forest Hills, 

 between 6 and 8 a. m.; the flowers close by 9 a. m., but the males 

 can often be found during the day, sleeping inside the corolla. 



Dianthidium notatum (Latreille). This is fairly common in the 

 first half of August at Forest Hills, on flowers of Lespedeza hirta and 

 L.frutescens, which are visited by both sexes. I have also taken it 

 at the Blue Hills Reservation, on Baptisia tinctoria. 



Halictoides novse-angliae Robertson. Many males were seen 

 at the flowers of Pontederia cordata in the Arnold Arboretum, Forest 

 Hills, from July 8 to August 15; the females are much scarcer and 

 appear later, the first being taken July 24. 



Perdita octomaculata (Say) . At Forest Hills this little bee was 

 seen nesting in the sandy soil of a vacant city lot; on August 10, 

 the two sexes were found in numbers mating within the flower- 

 heads of Cichorium Intybus; the female also visits Solidago rugosa. 



Epeoloides pilosulus (Cresson). One male at the Blue HiUs 

 Reservation, on flowers of Apocyrmm androsamifoliuvi. Epeo- 

 loides nearcticus Ducke,^ described from Pennsylvania, is in my 

 opinion a synonym of pilosulus. 



1 Botanical Gazette, 25, 1898, p. 230; and 28, 1899, p. 36. 



2 Rev. d'Ent. Caen, 27, 1909, p. 39. 



