HUNTER: COCCID.E OF KANSAS, III. ' 107 



nence. The question then arises, Are the distinctions surrounding the 

 fourth-lobe position of specific moment ? In some genera they would 

 not be. In Parlatoria all species are closely related, and hence dis- 

 tinctive structural characteristics, though slight, are of greater weight 

 than in genera where distinctions are more marked. The presence of 

 the fourth lobe, rudimentary, with papillar termination, then, should 

 difiPerentiate the species P. pergandei from the species P. proteus 

 with Its fourth rudimentary lobe showing plates extending beyond its 

 caudal margin. 



NOTES AND CORRIGIENDA. 

 Part I. 

 _ Aspidiotus ohseurus Comstock as recorded was represented bv only a few 

 individuals upon one tree. I have since (October, 1899) found two black oak 

 trees quite generally infested on both trunk and limbs. These trees are in a 

 forest near Holton, Jackson county, Kansas. 



On page 4, and wherever it occurs thereafter, the specific term amijclus 

 should be ancylus. 



Part II. 



Lecanium canadense Ckll. Occurred sparsely when found at time of col- 

 lection, April, 1898. Last year the same conditions existed. This season it 

 appears to be abundant upon elms in Lawrence and vicinitv: in some cases 

 assembled in clusters. I have found a species, alike in form, size, and color upon 

 hickory, a suggestion for further observations upon the status of caryce and 

 canadense. 



Lecanium cockerelli Hunter. This species has been found on plum in 

 Nebraska ( Bruner MSS.) I have found it on hickory this season ( May . near Law- 

 rence. The scale on hickory was well covered with a pruinose coating 



Lecanium maclurce being preoccupied, the term Lecanium aurantiacum 

 is now offered in substitution. 



Measurements of length and breadth of bodies of scales contain thereafter 

 the abbreviation ^ (Greek mu i, which should be mm. 



