Insects Afecting the Strawberry. 



79 



Paria aterrima is extremely like the preceding, of the same size, and simi- 

 larly variable, but the head is commonly said to be much less punctate, and 

 the thorax less punctate and minutely wrinkled. I am inclined to doubt, 

 however, the distinctness of the two species 



Larva— The larva is about four mm. long by two mm. wide ; white, except- 

 ing the head and first segment, which are pale yellowish brown. The seg- 

 ments are twelve in number behind the head, the first leathery and smooth. 



Fig. 20. Head of same, front view. 



and as long as the two following. Each of the remaining segments is marked 

 by about three transverse dorsal folds, and bears a transverse row of ten or 

 twelve long slender hairs. The spiracles are nine in number, the first larger 

 than the others, and situated between the first two thoracic segments, the 

 remainder on the abdominal segments from the first to the eighth. They 

 are situated in a longitudinal groove, separating the ends of the dorsal seg- 

 ments from the first of two rows of prominent tubercles which extend along 







Fig. 21. Larva of same, magnified 16 diameters. H. Garman. 



the sides, one tubercle of each row corresponding to a segment of the body. 

 The summits of these tubercles are smooth and slightly .shining, and each 

 baars usually two or three scattered hairs. The two rows of tubercles above 

 mentioned are separated from each other by an irregular longitudinal 

 groove, about half the width of one row. The second, or inferior row, is 



