Taste 1.—Showing the number of days oceupied by each stage of the nymph. 
fen) 
a The figures in thick type indicate that those days were spent in the incubator. 
| | | Total | 
Ret SrAGE! sonst Te IDG, | UNG IN We Wi 4} 0, |) wait, IX. XG XJ. | XID. | XIII.) XIV. | number 
isa | of days. | 
& | | | 
5 | FE. | : | 
) Nymph. Sex. | 
BS A, pulchellum. Nala 12 17 ee 25 150 16+15 Pepa || 5 21 | 18+19 86 * 211 624, 
=) » (2. yp wa) ilies 60* +19 20 8 | 14 | 20474) 41 296 
a is +3, @..| 12 | 20 | 21 | 46+10 9 10 11 | 16 | +2 69 277 
= F WA, Bacall 12 17 14 | 57+12 9 12 10 14 14 10+48 x 229 
S) : 5B @..| 12 | 24 | 82° | Leer? 9 31 145 23 2 epep eee 50) || 634 
f= - qh i. 7 Ni/ 14) 25 92+7 9 6+21 | 31+15 Wel 24 25+29 | ... 339 
o i Wo — Reo I 24. 55 | 24+15 4 10 en | i} | 9 22 6+81 | 37 om. 291 
= e +3. @ ?+15| 18 9 14 he Bits lt 4+8 2 26 By | Daly) 
A ion Oe | Seca ape esestal 17 14 21 18 | 40 49 227 
a 2 SHPO, aac tb) Tae a oe all 28 135 +7 | 6 | 8+388 | 16+11 36 | 
S » SPU ver | 14 | 23 26 | 104+7|) 8 1437 | te+7 | 92 | 5e-12| | 
© 3 SR a noel | 18 7 35 133 | 388 |16+18; 14 49+8 | | | 
Be " IEE hes FP 14 28 |60+10| 9 10 14 17 =| 21+37 | 69 | 
is 3 i, Oy = 13 14 a) | il 2410 | 17 24 «| 804+37 | 71 
& IT, elegans. NS 1 cenlf aes ce | ol 21 34 26+8 | ae al) 9 22 8+? 
= |r. naias. UGS nal eave Ghat | oaks ine 28 60+19 | 20 18 8 13 8+2 | 51 37 56 
Ht | Bn. cyathigerum. $17. ? ... leer 7 og TBEY | Gael ale 12 44 |2+63| 216 | 30 | 
H |P.nymphula. 18. ?... | ae) 23 32 | 28+14; 18 | 18 13 21. 7474 | 
5 ‘¢ ig), F 13 ae) |) essa) RY I) ie) 16 | 25+18| 983 
ae * A moult was by mistake not recorded; in No. 2 it occurred in the incubator. 
en + Only in incubator from April 20th onwards; not during the winter. 
= + Only in incubator during the winter months—December to February. 
ei 
§ Incubated for 21 days in February, otherwise no winter warmth. 
