386 NATURAL HISTORY MISCELLANY: 
ined under high powers for this purpose, the intestine of the adult being 
— ruptured under the compressor without showing any evidence 
n anal aperture. — EDWARD S. MORSE. 
RCOPSKLLA (PULEX) PENETRANS.— Having had some personal ac- 
Tenane with the doings of this insect, allow me to make a few obser- 
vations suggested by the account of it in the **Guide to the Study of 
Insects,” p.390. “The best preventatives (Webster gives preventives) 
against its attacks are cleanliness, and the constant wear re) of shoes or 
slippers when in the house, and of boots wt out of door 
As Iwas not in the habit of going entirely fette I cannot say - 
whether I would have been more troubled by the nigua OE : 
jigger (Florida), or chigoe or chique (French); bicho is applied t 
persons than to othe rinin generally are said to do; though this, 
again, is attributed to uncleanliness in the parties so affecte A 
events it seems cert: t some pe re less sensitive to these 
pests, or that they are less or not at all attacked by them. Some per- 
sons say that fleas do not get upon them. They may be of the hard- 
skinned sort 
e aé “nigua” looks like a small flea, but does not jump, O only 
These may be often seen in places much frequented by swine par- 
teal, and in the mills for hulling coffee, much like old-fashioned cider 
, the area of which is dry and trodden to dust by the oxen which 
dii the wheel. I have seen them also mdi a pet deer was accusto 
to lie. 
The female is rarely seen till felt. It is she alone that penes ue 
the following day, if I discovered their presence, which was not mis 
ao — She enters the skin, vertically, just her own length. The 



gn ETT 

