VOL XXI. LONDON, JUNE, 1889. No. 6. 



CORRECTIONS AND ADDITIONS TO PREVIOUS PAPERS. 



BY JOHN HAMILTON, M. D., ALLEGHENY, PA. 



The lapse of time and further observation on some of the things 

 treated of in papers previously published in the Entomologist, render it 

 desirable to make some corrections and additions. 



Trogoderma ornata, Vol. XV., 91, and XVI., 37. — The treatment of 

 this pest there detailed so completely annihilated it that it has not been 

 seen since. 



Dermestes Frisc/iii, Vol. XVI., 37. — Seems to be successfully natural- 

 ized, since it still occurs abundantly on Brigantine Beach, and last Sep- 

 tember was found at Atlantic City. Mr. Ulke has also taken it at Wash- 

 ington, D. C. (Ulke MS.). 



D. 7nurmus, /. c. — ^This species, if ever imported, is not known to 

 have established itself. There is a form of D. mibiliis Say, with black or 

 partly black antennae, and a minimum of fulvous mottling on the thorax ; 

 specimens of this kind were probably before Dr. Leconte when he de- 

 scribed his murmus, Pr. Acad. Nat. Sci. VII , 108 ; and before Dr. Jayne 

 when writing his " Revision of the Dermestidae." 



Blaps. — The Virginia species of Blaps, found very abimdantly at 

 Alexandria, is similis Latr., as stated by Professor Riley. Another species 

 found in Maryland by Mr. O. Lugger, is mucronata Latr. The com- 

 parisons and determinations were made by Dr. Horn on his recent trip to 

 Europe. 



Ceratocampa regaiis, Vol. XVI., 15, 47 and 132. — I have had several 

 favourable opportunities to observe the mode of pupation of the gigantic 

 larvge of this regal moth. Where it can find ground soft enough to pene- 

 trate, it always pupates under the earth, and if at a proper depth the pupa 

 remains there in a clay cell formed around it by its own motions till it dis- 

 closes in May ; but if the larva does not get deep enough the pupa works 

 to the surface and probably does not survive. Should the larva, as is 



