50 
LIFE HISTORY OF NORTH AMERICAN TICKS. 
were deposited lasted only three days, it usually continues during the 
summer months for from 6 to 10 days. 
After the fourth deposition, 
engorgement of the ticks became more difficult with each succeeding 
deposition. 
of the ticks. 
and deposit more than five times. 
This seemed to be due largely to the weakened condition 
It therefore appears that in nature ticks seidom engorge 
It seems probable, however, 
that if the first engorgement were made early in the spring and the 
ticks were engorged as soon as possible after deposition was com- 
plete, a greater number of annual depositions would occur and prob- 
ably the total number of depositions would be increased. 
TaBLe IV.—Oviposition of Argas miniatus. 
Date nymph molted to adult. 
(ONT OUP Cobo Es 
ROS My: LIOR see eee ae iat ei ese 
lity e7), MOOS Eee. coach ce tee 
12. July 4-10, 1908 
15. August, 1908 
16. ——, 1908 
17. June 15-July 15, 1908 
18. Aug. 17, 1908 
(EST | HORE Semen ARERR 
Be eaten nt COR eh ai PAN 
EE RN a pT OL i eS 
PE MMITIC OOS, So eheiapenstt cin ctamis cic. see 
PMCs Gre asec. oS eee ee see 
SUC UL yi OS ie ese toe sre sais oes 
Suliys UOOS meee ccc cee eset e ene ce 
PUY 7 SRL OOS pee elon gycpe ao ere ie 
Ul yet MLOOR eso soto asses eee 
BS. Apr) 1908 slo sso tes ee oi he 
Gas Aiie-485, 1O0GLEE rs arate, OF 
Date of first engorgement. 
July Bt Ae O08 cece 525 
erat 28, i hotly See 
Jai; 29530 OOS swe sees ae 
July 31-Aug. Py O08. es. 2s 
sue 28, EGS aE eR Se 
JNIky 20) 80; LOS scemeee eae 
July 27, 28) NOUS te Hace tee oe 
July 29, 30, 1908............. 
July 3l—Aug. 1, 1908.....-... 
Sept. y 2) dOOR esses ese 
Aug. as 28; 1908 see Soke 3 
July ere WS L90Be rete. 8 
Sept. 3, 4, 100k eer oe 
Aue 2%, 28, 1908 sens des. 
First oviposition. 
Dates. 
June 29-July 10, 1908.......-. 
June 28-July 7, 1908........- 
Aug. 28-Sept. 1, 1908.......-. 
Did not deposit celta chan en 2 
July 31—Aug. 8, 1908......... 
Aug. 3, 10, Toeee ar ee ntnees 
Aug, (6-12; 1908525. Lee easecee 
Did nopdepositess-eees sees 
Arig. 6-9) 908. . 55 aes eee 
Auge VIRA1S 1908 Sees ee 
Mag. 5—L1gGO0R@..0 5 sooo! 
Date nymph molted to adult. 
Date of second engorgement. 
1. June, 1908 
DINE 0S eee ee eee een 
3. guns Aa 1908 
4, July, 
6. July 4 1908 
7. July, 1908 
Pic UL BAAR) ll eg ecb 
9. July, 1908 
10. July, 1908 
11. July 7, 1908 
Ney 4-10, LOUS sce ccs ec. nsnenee 
SIMA Sa OUR ee chee cence ce ce 
PAPA PaO ss ee Soseee ose 
15. August, 1908 
fon TOD gee Eee eee 
17. June 15-July 15, 1908 
18. Aug. 17, 1908 
19. ——, 1908 
20. a 1908 
21. ——, 1908 
TOUS Bec scone anaes eee 
Belly SOO 2 5 hae: | Sek ie ee 
seer ra 15, 1908. 
Beef i, 12, 1908. 
Dates. 
ER BE Sig SS 4 ey Tulsy7 29) 30) GOS ee eee eee ATT on 1710 ae 
July 31-Aug. 1, 1908......... IR 5-1 LOO Same ae eee 
Shee ee aceeneee Sept: '3).4,,1908. . s.25... 2 soe} Sept. 7-14 1908E 2a ee oe oe 
Nii OIYP TOU nea ge oe Sept. l0=le 1lG0Rs sae ane 
Aug. 14, 15, 1908 oc eseck eck Aug. 1S—27, L008 es vase see 
Se ee See cee eerie cee COne nace aveewcetnaccsses| ULES 20,1908 sonenes eos 
a = Se tupac oe Atte .i21 22 19085 oe a emcee en Aug. 27-Sept. 2, 1908.......- 
Aug. 25, 26, GOR Bestcceeee en Sept. 25, L908. 2 scnccce=Soe" 
Sark meee ange ore Sek Agi 14 5 1908 5 ee 5 os 224 At ge 20-28, 1O0R Ee ee ees 
eeieus [eat te coteiaia me eae et Aug. 21, 22,1908............} Aug. 28-Sept 5, 1908........ 
soetostele thse hs ds ceiac Aug 14, 15, 1008 cas cne. cit AuUg, 18-275 1908. 22 oa eceen 
SAE) OFAN (Pits al Ao 10) eee a Sept. 12-15, 1908 ee esa 
ANC Tab OOS meee. seek Avg: 17-28, 19082250 2 eee ee 
Bet 14, 15, i008 Se teeee eee Sept. 20-Oct. 4, 1908... <c00% 
...| Sept. 16-24, 1908 bididh emjet eetes 
..| Sept. 15-22, USO <rarcrecers 
.-| Sept. 26-Oct. 14, 1908. 
.-| Sept. 25-Oct. 19, 1908... 
.-| Sept. 20-Oct. 3, 1908... 
-| Oct. 8=22,1908. ....... 
Sept. 16-24, 1908...... atavee 
