64 THE SAN JOSE OR CHIICESE SCALE. ' 



of young and old scale-insects, and frequentl}^ contains full-grown 

 Pentilia larva?, their pupc^e, and freshly issued beetles. (See fig. 10.) 



This beetle was originally believed to be essentially an eastern species, 

 and the fact that it attacked the San Jose scale so efficiently at the very 

 outset was an interesting entomological experience, and led Doctor 

 Howard to suggest its immediate introduction int:) California, and one 

 colony was sent, in 1894, to Professor Wood worth, at Berkeley. Our 

 account of this useful beetle having come to the attention of Mr. J. E. 

 Mclntyre, of Lespe, Cal., he urged us to procure for him some living 

 specimens. Having alread}^ sent material to Mr. Woodworth, we were 

 not immediately able to get a supph' of the insects for a sending, but 

 at this juncture we received from Mr. G. W. Harney, of Mar3^sville, 

 Cal. , some beetles for determination, which proved to be Microweisea 

 misella. He reported that in the mountainous regions of Yuba County 

 many apple trees had been very badly infested with A. perniclosus. and 

 that hundreds of these little ladybirds were found pre^^ing on the scale. 

 The occurrence of this ladybird in California as thus determined, and 

 the fact that it there had the same useful habit, was a most interesting- 

 discovery. We immediatel}" had Mr. Mclntyre's request transferred 

 to Mr. Harney for attention. It is more than likelv that this little 

 beetle is already wideh^ distributed over the Pacific slope, and it may 

 prove to have a continental distribution instead of being restricted to 

 the East, as originall}' supposed. 



Another species of about the same size as Microiveisea misella^ but 

 dark wine- red in color and representing a distinct species, has been 

 under observation for some time by Mr. Frederick Maskew in south- 

 ern California, and at the time of the writers visit to California in the 

 autumn of 1903 his attention was called to this scymnid, and some 

 material was collected and submitted to Mr. E. A. Schwarz, who pro- 

 nounced it to be an undescribed species. Mr. jNIaskew states that this 

 little sc3'mnid is always associated with the San Jose scale, and seems 

 to be doing pretty good work against it. Mr. Schwarz has published 

 a description of it under the name Pseu.doioeisea sutiuxdis.^ 



A small predaceous beetle, CoUops qicadrimaculatus Fab., was 

 observed b}^ ]\lr. Schwarz at Charlottesville, Va. , feeding on the larvse 

 of the San Jose scale. This beetle belongs to the family Malachiidge, 

 concerning the life history and food habits of which very little is 

 known. Evidenth' these beetles are in part at least predaceous, as 

 evidenced by this observation b}' Mr. Schwarz. This beetle is. how- 

 ever, not abundant enough apparenth^ to have any practical A'alue as 

 a means of controllintjf the San Jose scale. 



«Proc. Ent. Soc. Wash., Vol. VI, IS'o. 2, April, 1904, pp. 118, 119 (issued May 21, 

 1904). The name Ptieudoweisea was used by mistake for Microweisea. — Ed. 



