THE CANADIAN ENTOMOLOGIST. 81 



females were observed in the act of ovipositing in the bodies of the scales 

 on the tree. On these parasites being referred to Dr. L. O. Howard, 

 of the United States Department of Agriculture, he at once pronounced 

 the species as belonging to both a new genus and species, he having 

 previously drawn up a manuscript description from species reared in 

 Paris, France, by Dr. Paul Marchal, who had reared it from Diaspis 

 ostreceformis. It has since been discovered that the same insect was 

 reared in Ceylon by E. E. Green, from Chionaspis vitis, and it has also 

 been reared from a species of Aspidiotiis on sweet gum from Savannah, 

 Georgia. The species will now be known as Archeno7nus bicolor, 

 Howard, the description having appeared in the Proc. Ent. Soc, 

 Washington, Vol. IV., No. 2., page [36. There can hardly be a doubt 

 but that this parasite was imported with its host from Japan, and well 

 illustrates the wide distribution of insects, both injurious and beneficial, in 

 articles of commerce. Both the scale insect and its parasite are ne.'w to 

 Ohio. While it is almost impossible to determine the native home of 

 Diaspis amygdali at the present time, it is likely that this honour will 

 fall either upon Japan or the West Indies, though it might have been 

 first diffused from the East Indies. That the little parasite, Archetiomtis 

 bicoior, Howard, should be reared at such widely separated points as 

 Paris, France ; Ceylon ; Savannah, Georgia • and Wooster, Ohio, with the 

 probability of the species having been imported into Ohio from Japan, 

 is somewhat surprising, and well illustrates the almost universal diffusion 

 of some of our parasitic insects. 



Another scale insect, probably new to Ohio, is the apricot scale, 

 Lecaniicm artneniacuin^ Craw. I have not been able to find any record 

 of the occurrence of this insect outside of California, where it is found on 

 the apricot, prune and plum especially, but also occuring on 

 the cherry and pear.* My specimens, which seem to be a variety, were 

 found on the Spanish Chestnut, in great abundance. 



*California State Board of Horticulture, Division of Entomology. Destructive 

 Insects, Their Natural Enemies, Remedies and Recommendations. By Alexander 

 Craw, Quarantine Officer and Entomologist, Sacramento, California, 1891, pp. 12-13. 



GENUS EUSCHAUSIA. 

 Schaiisia, Dyar (Arctiidae), Can. Ent., XXIX, 212 (1897), '^ P^^" 

 occupied by Schaiisia, Karsch (Agaristid^), Entom. Nach., XXL, 346 



(1895). The Arctiid genus may be called Euschausia. 



Harrison G. Dyar, 



