6 o6 
Journal of Agricultural Research 
Vd. XIV, No. 13 
17,960 kamani nuts (Terminalia catappa) collected during the year, 
143,246 maggots were obtained, or an average of 8 to each fruit. For¬ 
tunately most other fruits were somewhat less infested than these. 
Though the infestation is considerable, the parasitism, as shown in 
Tables II and III, is very high in some cases, and during the year aver¬ 
aged 47.5 per cent for all fruits taken together, as determined frcm 
records on 72,139 larvae. 
Table I. —Extent of infestation of host fruits by larvce of Ceratitis capitata in Hawaii 
during IQ17 
Host fruit. 
Number of 
fruits 
collected. 
Number of 
C. capitata 
larvae 
emerging. 
Average 
number of 
larvae per 
fruit in 
1917- 
Average 
number of 
larvae per 
fruit in 
1916. 
Indian almond (Terminalia catappa) . 
17, 960 
143, 246 
8.0 
9 * 5 
Mango (Mangifera indica )... 
648 
5 , 2 5 ° 
8.1 
1. 7 
Coffee (Cojfea arabica) . 
58,272 
45j 788 
.8 
. 5 
Strawberry guava (Psidium cattleianum) . 
9,872 
j 9 j 795 
2. O 
1. 6 
Black myrobalan {Terminalia chebula) . 
Peach (Amygdalus persica) . 
Rose-apple (Eugenia jambos) . 
Satin-leaf (Chrysophyllum olivaeforme) . 
French cherry (Eugenia uniflora) .. 
1,767 
10,411 
5 * 9 
7. 0 
913 
1,115 
6, 905 
21, 554 
* 3»904 
9,811 
2 3 > 745 
21,911 
7,287 
15 - 2 
8.8 
3-4 
I. 0 
20. 5 
5-5 
2. 0 
.8 
West Indian medlar (Mimusops elengi) . 
4,133 
1.8 
5*3 
Yellow-wood (Ochrosia elliptica) . 
5 6 
I > 3 12 
838 
16,667 
23. 5 
3 * 1 
Kamani (Calophyllum inophyllum) . 
Yellow oleander (Thevetia neriifolia) . 
346 
2,960 
2.4 
5 * 7 
3*3 
3* 6 
Carambola (Averrhoa carambola) . 
316 
185 
.6 
I * 3 
Chinese orange (Citrus japonica) . 
8,050 
14,090 
1.8 
3 - 1 
Guava (Psidium guajava) . 
i ,342 
i, 980 
6,009 
4 * 5 
6.8 
Loquat (Eriobotrya japonica) . 
5 > 2 °4 
2. 6 
. ... 
Kona orange (Citrus sinensis) . 
35 ° 
1,600 
4. 6 
Mandarin orange (Citrus nobilis deliciosa ).... 
341 
73 2 
2. 2 
Sapodilla ( Achras sapota) . 
White sapote ( Casimiroa edulis) . 
104 
488 
4 * 7 
244 
1,845 
7.6 
Wampi ( Clausena wampi ). .... 
ri 7 
24 
. 2 
Table II .—Percentage of larval parasitism of Ceratitis capitata in Hawaii in 1917 a 
Host fruit. 
Month of col¬ 
lection. 
Number 
of larvae 
emerg¬ 
ing dur¬ 
ing first 
2-6 days. 
Percentage of parasitism. 
Optus 
hum- 
ilis. 
Dior 
chasma 
tryoni. 
Dia- 
chasma 
fullar 
Wayi. 
T etras- 
tichus 
eiffar di¬ 
anus. 
Total. 
Indian almond. 
Do. 
Do. 
Do.. 
Do.. 
Do. 
Do.... 
i 9 I 7* 
January.... 
February.. 
March. 
April. 
May. 
August.... 
September. 
677 
690 
302 
342 
*>035 
4,620 
5,148 
7*5 
6.1 
IO * 3 
16.2 
11.4 
4* 4 
5*° 
44-3 
16.8 
22. 2 
22.8 
34-3 
158 
46.8 
0.3 
. 2 
. 02 
i-3 
7-3 
3*5 
•7 
3* 5 
3*3 
53-6 
24.2 
39-8 
3 6 - 5 
46.7 
33-9 
55- w 
• Most of the fruits represented in this table were collected about Honolulu at low elevations. The 
coffee, however, was collected on the island of Hawaii, in addition to localities in Honolulu, and much of 
it came from points from 1,000 to 2,000 feet above sea level. The March collection of coffee came entirely 
from Kona on the island of Hawaii. 
