Vol. XXvi] ENTOMOLOGICAL NEWS. 471 



Hence when wasps emerge in July, we know that they are the 

 second brood. .We have the following data on the subject: 



Sceliphron caementarium. 



Nest taken. Date of emergence. No. of insects. 



June 21, 1911. July 13, 1911 I 



June 21, 1911. July 8 to n, 1911 5 



June 19, 1912. July 5 to 14, 1912 6 



July 5, 1910. July 28 to 31, 1910 4 



Chalybion coeruleum. 



June 21, 1911. July, 1911 3 



June 21, 1911. July, 1911 I 



June 21, 1911. July* 1911 I 



June 21, 1911. July 10, 1911 i 



The two tables above show that the first summer generation 

 goes through its life cycle in less than a month. Hence one 

 can see no reason why, under the same climatic conditions, we 

 should not have another generation following this, covering 

 the July-August period, and this third generation leave behind 

 them the young which hibernate. 



It would be very difficult to solve this problem precisely, 

 since in the latter part of the summer the wasps of all the 

 generations are mingled in their work. 



Synonymical Notes (Lep.). 



In a paper on New Heterocera by Frank Haimbach, which appeared 

 in the Entomological News, Vol. XXVI, p. 321, 1915, the author has 

 unfortunately created several synonyms of Western species, owing to 

 the fact that some recently published papers by Dr. Dyar and our- 

 selves have been apparently overlooked. 



Hymcnia kaeberalis Haim. is a synonym of Ercta desmialis B. & 

 McD. (Cont. N. Hist. N. Am. Lep. II (6) 225, 1914). 



Diatliraitsta montana Haim. falls before Diatlirausta harlcqiiinalis 

 Dyar (Insecutor Insc. Menst. I, p. 100, 1913). 



Galasa fitli'iisaua Haim. is the same species as Cordylopeza n'ujri- 

 punctalis B. & McD. (Cont. N. Hist. N. Am. Lep. II, (3) p. 134, 



1913)- 



Regarding Pyrausta huachucalis Haim. we are in doubt, but as far 

 as can be judged by the figure the species looks suspiciously like a 

 Chrysaugid, Hdiadcs innllcolclla Hist., which is in Dr. Uyar's list 

 wrongly placed as a synonym of Arta statalis Grt. An examination 

 of the venation should of course at once settle the question as to 

 whether the species is a Chrysaugid or a Pyraustid and we should be 

 glad to hear from Mr. Haimbach on the subject. 



Amorbia -wcnzclana Haim., described from a single 9 should be 

 transferred to the genus Platynota. The species is closely allied to 

 mijrocervina \Ylshm. and has been standing in the Barnes collection 

 under a manuscript name of Kearfott's ; this never having been pub- 

 lished, wenzelana Haim. will of course replace it. J. 

 I'n.1 >., 1 K'catur, Illinois. 



