56 THE FLORIDA BUGGIST 
porch and two single windows on the side (east) porch. There 
is a corner two feet east of the door that projects outward a 
couple of feet and a trellis of wisteria shades part of the front 
and side porches. The traps were located at the right and 
left of the door (D:rl) ; at the windows on the front (south) 
porch (W:bbb); and on the north end of the east porch 
(N:cb). See diagram, Fig. 31b. 
The importance of the position of the traps is strikingly 
shown in Table I, which gives the records of two similar crocks 
situated on the south end of the West Ninth Street porch. One 
was on the east side near the wall (SE:c) and the other not 
eight feet away on the west side near the coping where it was 
more exposed to light (SW:c) (see Fig. 3la). The table 
gives the average number caught per night for a five and six 
months period, from October to March. (There is no record 
for the crock near the coping for November, hence this is for 
a five months period only.) 
TABLE I.—THE EFFECT OF POSITION ON THE NUMBER CAUGHT 
Position of ‘Crock (ce) | Months Recorded | Average No. Per Night 
W.2Oth Sti atrotce. Gl) eae. | 6 | a 
W. 9th St. at SW:c............. of2| 5 | Aue 
This large difference is explained as follows: As day ap- 
proaches the outer edge of the porch becomes light first and 
the mosquitoes move towards the darker side, next the green 
wall, and eventually settle in the traps. The house also breaks 
the wind on this side and the air is calmer. This tendency to 
go toward the darker side is also shown near the door at 2300 
W. Hernando Street (Fig. 31b). A crock was placed on one 
side of the door and a joint of stovepipe on the other through- 
out the winter. Records for an average of ten nights in 
March show that when the crock was on the right it caught 
1.56 times as many as the stovepipe on the left and that when 
the stovepipe was on the right it caught 1.47 times as many 
as the crock. This is in spite of the fact that a flower stand 
and a box for rubbers, etc., was always on the right and a 
considerable number always settled here. The conditions here 
are somewhat similar to those at West Ninth Street. The pro- 
jecting wall shuts off the early light from the east and the 
wisteria vines, which end about opposite the trap, shut off the 
light from the front, leaving this a darkened corner. The 
effect of a large dark place where the mosquitoes can hide was 
