1911.1 39 



disappeared, and the whole insect became pale ochreous. Thus, a 

 green mother produced an ochreous offspring". According to Eeuter, 

 however (Hem. Grvm. Scand. et Fenn.), a green form of the (J is not 

 known. 



From these observations the scheme of the transformations will 

 be seen to be as follows : — 



viposition June 8th . 



Egg hatched „ 22nd Duration of egg stage. . . 14 days. 



1st ecdysis „ 26th „ „ 1st instar... 4 „ 



2nd „ July 1st „ „ 2nd „ ... 5 „ 



3rd „ „ 7th „ „ 3rd „ ... 6 „ 



4th „ „ 14th „ „ 4th „ ... 7 „ 



5th , „ 23rd „ „ 5th „ ... 9 „ 



Total time from oviposition to appearance of imago, 45 days, nearly a 



third of which is spent in the egg. The gradual increase of time in the 



duration of the successive instars are noteworthy. 



During the foiu-th instar an accident happened to the terminal 

 joint of the right antenna, which caused it to shrivel tip. This was 

 not repaired at the next ecdysis, but the shrivelled part was cast off, 

 and the imago appeared without any other alteration than a joint too 

 few on that antenna. Mr. Douglas once propounded a theory that the 

 oligomery in the antennal joints which frequently occurs in the adult 

 Lygxidm, and is accompanied by the excessive development of one of 

 the remaining joints, may be due to damage received by the antenna in 

 the larval stage. Wliether this really holds in the case of the L^jgxidse 

 I do not know ; but certainly in that of the present Capsid the loss of 

 a joint in the larva was not followed by any increase in the size of 

 either of the remaining joints in the adult. 



Through all the larval stages the tarsi are two- jointed, though 

 the first joint gradually increases in proportionate length. The imago, 

 on the other hand, has three- jointed tarsi. No puncturation appears 

 in the larva, though the puncturation of pronotum and scutellum is a 

 generic characteristic in the imago. 



As I had to leave home shortly after the above history was com- 

 pleted, I could not continue the observations beyond the beginning of 

 August. There is thus a considerable part of the year still to be 

 accounted for, viz., from the beginning of August to the middle of 

 the following May. If the above date of oviposition represents 

 approximately what usually happens, it is evident that the insect 

 hibernates in the imago form. Of this there is also independent 

 evidence, as I have records of the imago occurring in March and 

 April. As the spring specimens are green, and these appear to be 



