418 JOURNAL OF ECONOMIC ENTOMOLOGY [Vol. 10 



(Salix sp.) July 30 at Cherryfield, Maine. Specimens have recently 

 been submitted to the writer for determination which were collected 

 from parsnip at New Haven, Connecticut, July 13, 1909, by Mr. A. I. 

 Bourne. 



The willow seems to have been the only host previously known for 

 this species. That it accepts members of the Umhelliferae also is 

 evident from these collections but the details of its hfe-cycle have not 

 been worked out. This is "A. saliceti Kalt." of Buckton and of 

 Theobald 1912, but evidently not of all writers. 



Aphis davisi, new name 



It seems necessary at this time to rename the aphid recorded as 

 Aphis populifolioe Fitch by Mr. Davis (Journal Economic En- 

 tomology, vol. 3, p. 489) as, according to Mr. Baker, populifolioe 

 Fitch belongs under Pterocomma. 



Prociphilus xylostei de Geer 

 (Fig. 20, h, i) 



A colony of w^hat seems to be the first collection of this species for 

 America was taken from Lonicera at Orono, Maine, July 7, 1914. 

 A single stem female with her progeny of pupal nymphs and newly 

 winged spring migrants were collected. The migrants apparently 

 accord in structural characters with specimens of this species taken 

 in Sweden by Albert Tullgren, and seen by the writer, though they are 

 smaller. 



Prociphilus approximatus n. sp. 



Alate Vivipara: Head with dorsal wax plates large, sub-circular and separated 

 by fully half their width; beak extending to or a little beyond second coxa?, antennal 

 segment III with ± 25 sensoria, IV with ± 8, V with ±12, VI with ±12, IV about as 

 long as tarsus exclusive of claw, shorter than V or VI which are sub-equal, III a 

 little longer than V -|- VI; thorax with wax plates large, clear cut, approximate, being 

 separated only by a straight line; wings not unusual for this genus; abdomen with 

 large lateral wax plates covering nearly the width of the segment, and large dorsal 

 wax plates. 



The cotype material including pupte and newly molted alates was 

 collected from White Ash, Hawleyville, Connecticut, June 19, 1914, 

 by Dr. W. E. Britton. It is a distinctive species especially with 

 reference to the large approximate thoracic wax plates, and if migratory 

 offers an mterestmg life-cycle problem. 



Lachnus ros-^ Cholodkovsky 



(Fig. 20, j) 



A Lachnus which accords too well with the species indicated to 

 entitle it to another name was made July 12, 1915, from wild rose near 



