CROSSING ETISCHISTUS VARIOLAEIUS AND EUSCHISTUS SERVUS. 365 



13th. 



5.00 A.M. mating 



: continued to 



mate 26 hours. 



17th. 



9.00 P.M. ditto 



ditto 



14 hours. 



19th. 



30 eggs (one group of 8 & one g 



roup of 22 eggs) : killed 6 for cytological study. 





14 reared to winged stage — (9 c? & 5 $). 



19th. 



6.00 P.M. mating 



: continued to mate 26 hours. 



21st. 



7.80 P.M. ditto 



ditto 



2 liours. 



22nd. 



3.80 P.M. ditto 



ditto 



5 hours. 



24th. 



5.45 P.M. ditto 



ditto 



5 hours. 



25th. 



6.30 P.M. ditto 



ditto 



4 hours. 



26tb. 



5.30 P.M. ditto 



ditto 



4i hours. 



27th. 



21 eggs (at 10 a.m.) : 18 survived 1st moult, 12 reared to winged stage — 





(3 cJ & 9 



$)• 





27th. 



5.30 P.M. mating 



: continued to mate 3 hours. 



28th. 



4.00 P.Bi. ditto 



ditto 



U hours. 



July 



30th. The male died and was preserved in glycerine (tube 34). 



31st. 20 eggs (deposited on wire top of cage) : 19 hatched, 12 reared to winged 

 stage— (5 d &7 5). 

 September 



3rd. Killed the $ and preserved in glycerine. This lemale would undoubtedly have 

 deposited more fertilized eggs, but at this period we had as many 

 nymphs developing from all the hybrid pairs as we could properly care 

 for, and were forced to be satisfied with the number of offspring already 

 secured from this pair. The male was photographed, and is shown on 

 Plate 28, photo 9. 



Record V. Cage 39.— 1912. 



Second Pair ot' Fi Hybrids. 



July 



19th. 

 30th. 



August 

 1st. 



5th. 



6th. 

 ]2th. 



12th. 

 13th. 

 15th, 

 16th. 



9.00 p.m. mating; 

 5.00 P.M. ditto 



continued to mate 13 hours, 

 ditto I65 hours. 



28 eggs. Discovered the § sucking these eggs ; she had taken the entire 



contents from 7 and probably more were injured, as only 11 hatched. 



8 reared to winged stage— (5 c? & 3 § ). 

 28 eggs, 17 hatched (6 survived 2nd moult). These were later caged wit 



nymphs from eggs deposited August 12th. 

 6.00 P.M. mating : continued to mate 67 hours. 

 11 eggs, 3 hatched. These were later caged with nymphs from eggs deposited 



August 5th. 8 reared to winged stage — (4 cj* & 4 $ ). 

 7.30 P.M. mating : continued to mate 12^ hours. 

 30 eggs, 24 hatched : 13 reared to winged stage — (o c? & 8 5 ). 

 3.30 P.M. mating : continued to mate 15i hours. 

 15 eggs, 12 hatched : 6 reared to winged stage — (4 c? & 2 $ ). 



