August, '09] JOURNAL OF ECONOMIC ENTOMOLOGY 295 



observed and some confusion exists in our minds regarding the dif- 

 ferentiation of the two. 



They pupated during June. 



Aulacaspis pentagona Targ, 



We are not aware that this coccid has ever been recorded as oc- 

 curring on the pecan. "We found it in considerable numbers on the 

 branches of pecan in Natchez, Mississippi, in the yard of a gentleman 

 where this insect was quite abundant on peach trees. It was associ- 

 ated with the next species. 



Chrysomphalus ohscurus Comst. 



We also found this species occurring in great abundance on the 

 branches of pecans growing in the same yard. This coccid has been 

 reported on hickory, but we can find no record of it on pecan. 



Phylloxera caryaecaulis Fitch. 



We have had reports and specimens of this pest on pecans from 

 several correspondents in Mississippi. On May 22, 1908, we received 

 from a correspondent some pecan branches which were literally cov- 

 ered with the galls of the insect. Mr. Sherard, the correspondent, 

 said "they covered every twig on the tree like the sample sent. I 

 noticed them on others in the same vicinity. Can you tell me whether 

 or not there is any danger of their killing or injuring my trees? 

 They. seem to be retarding this year's growth." 



The petioles and young twigs sent to me were covered with galls, 

 large and small. The galls opened by several valves, usually four, 

 like a Geaster puif ball. The specimens were submited for identifi- 

 cation to Doctor Pergande, through the kindness of Dr. L. 0. Howard. 



Mr. Pergande gives a description of this insect and its stages in 

 his monograph of the North x\merican Phylloxeringe, p. 244. We 

 hope to get opportunity to study all of these species farther and in 

 more detail, together with other pecan pests of which we have only 

 fragmentary notes at present. 



Aspidiotus perniciosus Comst. 



We found this notorious pest occurring quite abundantly on pe- 

 can trees at Scranton and Stinson, Miss. It was mainly confined 

 to the petioles of the leaves but was also present on the bark. 



All the affected trees were near badly infested orchards of plum 

 and peach trees. 



