THE AUSTRALIAN CATTLE TICK. 121 
TaBLE XLIII.—The parasitic period of Margaropus annulatus australis. 
INFESTATION No. 1. 
Date. Remarks. 
1908. : 
Leh oh ne eo oe Larve placed on bovine. 
Apr. é SE CC § Spee ee All attached. 
me 12: (Gt GS) s-.- 92 6. 52225 Several larve molting. 
Ud (2 Op ee re A large percentage molted. 
impr. 14.(S8th day). 222:-------5- All larve molted. 
pr, 2 (ibihn day).-.-.-.------- Four nymphs molted (3 males, 1 female). 
Apriae (16th day). .<----.2.2-- A total of 20 molted. 
mpEees (Lith OS)... ~-=3-5- A total of 40 molted; one not molted. 
impr 24 (18th day). 2.-2--.-2s- All have molted 
Apr. 25 (19th day)..-......----- Several mated. / 
Apr. 27 (21st day).......----..-]| One female fully engorged but still attached. 
Apr. 28 (22d day).......---.-.-| One female dropped engorged. 
al 2 5" Ob ee Two females dropped. Seven fully engorged still attached. 
PaO 24. ARV) =~. 222-2 22% Fourteen females dropped engorged. 
AL eo 8 ae Four females dropped engorged. 
MA OO GRY) 2 oc2. 605225 The last female dropped engorged. 
INFESTATION No. 2. 
2 STAR Gyn ley ES ee Larve (hatched July 11) placed on bovine. 
Ame 2 CIsbOay). .\. 2-2-2525. - All attached. 
aie {LEG ORY) 25... ~22ces = Several molting. 
aS GRY)...---30L2-<2- All but two or three have molted. 
mae AS(Sth Ay)... 2s. = All have molted. 
Aap. 25 (14th day)-_..--<---..-- Two nymphs molted to males. 
Aug. 26 (15th day)...........-. Three more have molted. 
Auge 2S (ith Gay)_..--.--=-.-- All have molted. 
Aug. 29 (18th day)........-.-...- All mated. 
Sept. 1 oe pel & Ave eee Several females fully engorged 
a 7 Dg er Six females dropped engorged. 
Aug. 4 (24th a DS: SAS yet Five females, the last, dropped engorged. 
INFESTATION No. 3. 
ty SS ees Larve (hatched July 11) placed on bovine. 
Aug. 21 1(1 & wins pees ia ees All attached. 
sie? P56 AGUA GAY). ----=-- ------ Several molted. 
Asie: 20 (9th Gay)..---.--.--=-- All have molted. 
Sept. 5 (16th day).......-..---.-| Several nymphs molting. 
Sept. 8 (19th day).............-| All the nymphs have molted. 
Sept. 12 (23d day).............-.| Four females fully engorged. 
Sept. 13 (24th day)...........--| Four females dropped engorged and several others are fully engorged. 
Sept. 14 (25th day).............| Eighteen fully engorged females were removed. 
Sept. 17 (28th day).............| One fully engorged female removed. 
Sept. 18 (29th day).............| One fully engorged female, the last, removed. 
TaBLE XLIV.—Summary of parasitic periods of Margaropus annulatus australis. 
Larve. Nymphs. 
In- First molted. Last molted. First molted. Last molted. 
3 2 es MS Vicia Pts 
tion. Period Period ollow- 
on- }Attached. Ps follow- a follow- Ms 7 Para- ge 
ate. | ing at- ate. | ing at- ate. come e- ate. | sitic 2 
tach- tach- al riod. | ment 
ment. ment 
1908. 1908 Days. 1908 Days. 1908 Days. | 1908. Days. | Days 
aoe Apr. 6] Apr. 12 6 | Apr. 14 8 | Apr. 21 9 | Apr. 24 12 15-18 
, See Aug. 11} Aug. 17 6 | Aug. 19 8 | Aug. 25 8 | Aug. 28 11 14-17 
- Sean Aug. 20} Aug. 26 6 | Aug. 29 9 | Sept. 5 Sept. 8 13 16-19 
