368 MISSES K. FOOT AND E. 0. STEOBELL : RESULTS OF 



August 



28th. 16 eggs, 13 survived 1st moult : These were later caged with nymphs from 



eggs deposited September 8th. 

 31st. 27 eggs, 23 survived l.st moLilt : 12 reared to winged stage — (4 cJ & 8 5). 

 31st. 5.30 P.M. mating : continued to mate 11| hours. 

 September 



5th. 24 eggs, 16 survived 1st moult: 7 reared to winged stage — (4 c? & 3 $). 

 5th. 6.16 P.M. mating : continued to mate 49 hours. 



8th. 14 eggs (7 killed for cytological study) : 5 hatched ; added these to nymphs 

 from eggs deposited August 28th. (18 in all.) 9 reared to winged 

 stage— (6 c? & 3 $ ). 

 8th. 2.30 P.M. mating: continued to mate 11 5 hours. 

 9th. 5.15 P.M. ditto : ditto 6 hours. 



10th. 7.00 P.M. ditto : ditto 2 hours. 



11th. Killed both c? a.iid 2> f-^tl preserved in glycerine (tube 42). The male is 

 shown on Plate 28, photo 12. We were forced to kill this pair, as we 

 had as many nymplis in the laborator}' as avo could properly care for. 



liEcoiiD VIII. Cage 44-.— 1912. 



Fifth Pair of F, Hybrids. 



August 



6th. 2.00 P.M. mating : continued to mate 39 hours. 

 8th. 25 eggs, 2 hatched : none reared to winged stage. 

 9th. 5.00 P.M. mating : continued to mate 4 hours. 

 11th. 5.00 A.M. ditto ditto 1 hour. 



14th. 13 eggs (1 group of 10 and 1 group of 3) : 9 hatched, 7 survived 3rd moult. 

 These were caged later with nymphs from eggs deposited August 20th; 

 15th. 6.00 P.M. mating: continued to mate 14 hours. 

 19th. 5.00 A.M. ditto ditto 4| hours. 



20th. 13 eggs : 8 survived 1st moult, 4 survived 2nd moult. Added to nymphs 

 from eggs deposited August 14th. 8 reared to winged stage— (1 J & 

 7?). 

 23rd. 3.30 p.m. mating: continued to mate 16 hours. 

 27th. 30 eggs : one hatched. Did not rear. 

 27th. 7.30 p.m. mating : continued to mate 14^ hours. 

 28th. 7.30 P.M. ditto ditto 9f hours. 



29th. 15 eggs: 11 survived 1st moult, 4 survived 3rd moult. These were later 

 caged with nymphs from eggs deposited September 3rd. 

 September 



1st. 9.00 P.M. mating : continued to mate 7 hours. 

 2nd. 4.45 p.m. ditto ditto 7^ hours. 



3rd. 14 eggs, 8 hatched : 5 survived 2nd moult, added these to nymphs from eggs 



deposited August 29th ; 8 reared to winged stage — (3 c? & 5 $ ). 

 3rd. Killed both the cJ & 5 , and preserved them in glycerine (tube 37). 'J'he male 

 is shown on Plate 28, photo 11. 



We killed this pair because the small percentage of eggs that had 

 hatched indicated that these bugs were not functioning normally. 



