14 THE SUGAE-BEET WIREWORM. 



DESCRIPTIONS. 



The Adult. 



Following is the original description by Mannerheim ^ in Latin, 

 followed by a translation into English. 



136. Cardiophorus californicus: elongatus niger, punctatissimus, tenue piibescens, 

 thorace convexo, subquadrato, elytris dorso depressis, leviter punctato-striatis, 

 stemo profimde punctato, convexo, tarsis articulis omnibus et unguiculis simplicibus. 



Longit. 5J, 4^ lin. latit. If, If lin. 



Habitat in California, T>. D. Blaschke et Tschemikli. 



[Translation.] 



Cardiophorus californicus: Elongate black, closely punctate, finely 

 pubescent; thorax convex, subquadrate; dorsal surface of elytra de- 

 pressed, feebly striate-punctate ; thorax beneath deeply punctate, 

 convex; all joints of the tarsi and claws simple. 



Length lOf-O^ mm., width SJ-S^ mm. 



Habitat, California (Blaschke and Tschernikh). 



The Egg. 



The egg of Limonius californicus (PL 11, fg. c) is for the most part 

 opaque white, though it shows small, irregular, semihyahne areas 

 when placed on a white surface in dim light. The surface appears 

 smooth under the low power of the microscope, but under the liigh 

 power it ajjjjears to be slightly scaly. It reflects Ught weakly from 

 the lighted side. That the shell is quite tough is proven by the fact 

 that even when the eggs are rolled about in the soil they are seldom 

 distorted. 



The egg is eUipto-cyUndrical in shape. Both ends are broadly 

 rounded and resemble each other. Measurements of 30 eggs gave 

 an average length of 0.69 mm. and an average width of 0.5 mm. 

 The length varied between 0.63 and 0.735 mm. and the width be- 

 tween 0.473 and 0.53 mm. 



The Larva. 



The nearly mature larva of Limonius californicus (fig. 1 ; PI. II, 

 fig. h; Pis. Ill, IV) is subcylindrical in shape and shiny, waxy yeUow- 

 ish-brown in color. The segments are very minutely and sparsely 

 punctate. The head and venter are flattened dorsally and darker in 

 color. There is a light dorsal stripe on the posterior end of each seg- 

 ment with the exception of the venter. 



The head is dejDressed and considerably narrower in front. The 

 mandibles are strong, notched, deep brown in color, changing to 

 black at the tip. 



« Bui. Soc. Imp. Nat. Moscou, vol. 16, p. 238, 1843. 



