CROSSING EUSCHISTUS VAMOLAEIUS AND EUSCHISTUS SERVUS. ii69 



• Record IX. Cage 46.-1912. 



Sixth Pair of Fj Hybrids. 



(This 5 and the $ of Cage 48 were fertilized by the same S ■) 



August 



15th. 3.30 P.M. mating : continued to mate \b\ hours. 



22nd. 21 eggs, 6 hatched (only 2 survived the 1st moult) ; later added these to 



nymphs from eggs deposited August 27th. 

 27th. 9 eggs, all hatched : added these to nymphs from eggs deposited August 22nd. 



5 reared to winged stage— (2 c? & 3 $). 

 27th. 7.30 P.M. mating : continued to mate 3 hours. 

 29th. 14 eggs, 1 hatched and died after 1st moult. 

 29th. 5.15 P.M. mating : continued to mate 4:\ hours. 

 September 



3rd. 14 eggs. All fertilized, but none hatched. 

 3rd. 2.30 p.m. mating : continued to mate 7^ hours. 

 4th. 12 eggs : 7 fertilized, but none hatched. 

 4th. 3.00 P.M. mating : continued to mate G hours. 

 5th. 6.15 p.m. ditto ditto IJ hours. 



8th. 19 eggs, 5 hatched. ■ Later added these to nymphs from eggs deposited Sep- 

 tember Uth and September 14th. 

 11th. 11 eggs, 10 hatched, 8 survived first moult. Added these to nymphs from 



eggs deposited September 8th and September 14th. 

 11th. 5.45 P.M. mating : continued to mate 6f hours. 

 12th. 6.00 p.m. ditto ditto 4 hours. 



13th. 6.00 P.M. ditto ditto 2^ hours. 



14th. 14 eggs, nearly all fertilized, 3 hatched. Added these to nymphs from eggs 

 ''" deposited September 8th and September 11th. 8 reared to winged 

 stage— (5 d & 3 5 ). 

 17th. 12 eggs; 11 fertilized, but none hatched. 

 17th. 12.45 P.M. mating : continued to mate 7f hours. 

 18th. 8'OOp.m. ditto ditto 5^ hours. 



19th. 8 eggs : 4 fertilized, none hatched. 



19th. Killed the male and preserved in glycerine (tube 49). This male was photo- 

 graphed, and is shown on Plate 28, photo 13. 

 21st. Killed the female and preserved in glycerine (tube 49). 



Record X. Cage 48.— 1912. 



Seventh Pair of Fj Hybrids. 



(This 2 and the $ of Cage 46 w^ere fertilized by the same c? ■) 



AUGUST 



16th. 9.00 P.M. mating : continued to mate 8 hours. 



19th. 5.00 a.m. ditto ditto 5 hours. 



20th. 21 eggs, 20 hatched : 15 reared to winged stage— (6 d^ & 9 9 ). 



'>^nd 15 eo-o-s : 13 survived tirst moult. 10 reared to winged stage— (4 d & 6 $ j. 



