144 THE PLUM CURCULIO 
count was taken of the emergence of this parasite from the soil boxes, 
as shown below: 
Taste LXXXII.—Record of emergence of (Sigalphus) Triaspis curculionis from plum 
curculio larve for season, Washington, D. C., 1908. 
| Percent- | Percent- 
Date eevee uli age of age of 
Lot No larvee | el in [Sigalphus| oC, | Beetles | larve | larve 
Fae placed in Pp oil emerging. See emerging.| trans- unac- 
soil. : ed. forming | counted 
to adults. for. 
Aug.1 
6,025 
The percentage of parasitism, it will be noted, varied widely— 
from less than one-half of 1 per cent to 11.11 percent on June 4. The 
average percentage of parasitism for the season is small, and it seems 
probable that the insect during 1908 was less abundant than normal. 
Similar records of parasites emerging from lots of larvee taken over 
the whole season from Elberta peaches were made at Siloam Springs, 
Ark., during 1908, as set forth in Table LX XXIII. 
TABLE PO —Record of emergence of (Sigalphus) Triaspis curculionis for season, 
Siloam Springs, Ark., 1908. 
. Percent- | Percent- 
sietion ie octies pee 
= See : aa igalphus} ;°~_ eetles arvee arvee 
Lot No. Date larvae entered soil. Larvee. emerging. Neel emerging! trans- ait 
oe al forming | counted 
9 to adults. for. 
fe ees Soe Mavs 26s oe =. eee 328 3 0.91 50 15. 24 83. 85 
eee Oar 2 My ii—alQise er ee eae 57 18 3.14 124 21. 64 75. 22 
ae a ee May Beir Rr pe ee ae 965 21 2.18 131 13. 5 84. 27 
Aa Mavi 23—20= 25 6 od. son gee ee 550 19 3.45 123 22. 36 74.19 
De ee May 36-98 if SBR DARE eC on. 629 18 2. 86 253 40. 22 56. 92 
(eet 2 Maiyt29-sle oo. ee 719 7 .97 211 29.35 69. 68 
(epee ss Ui os ee ee ee ae 532 5 .94 293 55. 08 43. 98 
Soo ase UNO A=Gocat ewes tece ee soem 449 1 . 22 124 27. 62 72. 16 
9210 he Soe Vy bats Ca Pee oe eee ee Bee Bo Saerseee|lseacs case. 102 25. 89 74.11 
Lists: em DIME slo o. ects en ee 107 4 3.74 49 45.79 50. 47 
1 feet Us DMO GIS ES ere. oc ae 81 4 4.94 50 61. 73 33. 33 
1 aes ey sere JING O= Zero ay 6. ee 61 2 3. 28 34 55. 74 40. 98 
i FS eee June 22-Aug. 13....25.--..-- 6874s = lees 230 36. 11 63. 89 
Totals: <2 52 es eee eee Sat 6,025 102 1.¢€9 1,774 29. 44 68. 87 
