1930 ] 
Development of Dermatobia hominis 
335 
November 5. This morning the molted skin from No. 6 
was found all outside of, and still surrounding, the hole. 
This larva was quite active and caused considerable irrita- 
tion during the day. None of the other five lesions caused 
much discomfort. The fluid is exuding in a smaller amount 
than usual, and it seems to be comparatively clear serum 
with the exception of that which is coming from Nos. 1 
and 5, which is rather heavily tinged with blood. The 
other five larvae are probably also preparing to molt. 
November 6. The larva in No. 3 molted and ejected the 
cast skin during the A. M. Following the ejection of the 
skin, which was found adhering to the bandage, this lesion 
exuded a considerable amount of blood during the day. 
Frequent sharp, stinging pains at No. 6. This pain is so 
severe that at each attack it is necessary to remove the 
bandage and place a hand on each side of the lesion and 
press upward in order to stop the action of the larva. 
There is only a small amount of deep tissue surrounding 
this lesion and the larva is situated parallel with the sur- 
face of the skin. 
November 8. Cast larval skins were ejected from Nos. 
1, 2 and 4 this P. M. This leaves all the larvae molted 
except No. 5. Both arms are now very sore, and sufficient 
bloom and serum is exuding from the lesions to stain 
through the bandages soon after they are applied. 
November 10. No. 6 has caused excruciating pain at 
intervals throughout the day. During the evening one at- 
tack lasted for fifteen minutes and became almost unbear- 
able. Pressing on the sides of the lesion and allowing cold 
water to run on it seemed to have but little palliative effect. 
This attack was followed by bleeding. Blood oozed from 
the lesion in a thin stream and continued until it had 
soaked three gauze pads that were applied one after the 
other. No. 1 also bled sufficiently at one time this evening 
to stain through the gauze pad, bandage, shirt sleeve and 
coat sleeve. During the night I awakened to find that this 
lesion was again bleeding and to the extent of soaking 
through the dressings and sleeve of my pajamas. 
November 11. No. 1 gave the most trouble today. Dur- 
ing the afternoon it suddenly developed a severe, deep- 
seated pain which seemed to extend for some distance up 
