78 THE GYPSY MOTH APPENDIX. 



Imago.* Length, 18 to 22 mm. General color metallic 

 black above and greenish black below. Thorax and elytra 

 bordered with a more or less greenish band. Head medium 

 in size, profusely punctured. Mandibles (Fig. 5) large 

 and prominent. Third joint of antennse (Fig. 4) slightly 

 compressed. Prothorax small, narrowed posteriorly, the 

 lateral edges slightly produced. 



The posterior two-thirds of segment bears a quite promi- 

 nent impressed dorsal line. Thorax with granular punct- 

 ures. Elytra striate, each bearing three rows of small 

 impressed greenish dots. Under side of the body some- 

 what wrinkled and punctured. Fore tarsi of the female 

 (Fig. 6) simple. Fore tarsi of male (Figs. 7, 8) have the 

 first tour joints hairy beneath ; this character is not only of 

 value as a means of determining the sexes, but is also of 

 specific importance. 



CALOSOMA CALIDUM (Fab.). 



A male and female Calosoma calidum, which were taken 

 early in September, 1896, were immediately placed in a 

 breeding jar. On September 3 they were observed to 

 copulate, and on the following day fourteen eggs were found 

 in the jar. Three of these eggs were preserved for study, 

 but, owing to the death of a number of the larvae during 

 the early stages, only four pupated. From these survivors 

 the following 1 brief notes on the life history of this species 

 were prepared : 



Egg. (Plate 4, Fig. 2.) Length, 4 mm.; width, 1.7 

 mm. Form similar to that of C. frigidum, but tapering 

 somewhat more toward the lower end. Color, light amber. 

 Hatching took place in seven days from the date of ovi- 

 position. 



First Stage. Length, 8 mm.; width, 2 mm. at third 

 thoracic segment. Form ellipsoidal, tapering more gradu- 

 ally toward the last segment than in the corresponding 

 stage of C. frigidum. General color of the body and 



* For figure of imago see "The Gypsy Moth," Forbush aod Fernald, Plate 53, 

 Fig. 1, 1896. 



