Ithomnds,. and throughout my stay this was found to be the case- 
ihe Jthomia already mentioned was abundant at Bartica and elsewhere, 
but there was no swarming of these gauze-winged lepidoptera such as I 
had met with in Venezuela at an altitude of 3,000 to 4,000 feet. 
. hether the altitude is necessary I do not at present know for certain, but 
trom the experience in Guiana it looks as if it were so. I have told you 
of the walk home from Kalakoon, but I should have first taken you there, 
as there was considerable interest in the outward walk, which was done 
by way of a short cut, the distance being little more than four miles 
by the direct path. It was during this outward walk that a new 
1 apilio was caught, so if anyone is anxious to get his series the locality 
is now given away. Another Papilio that was taken was P. trio pax, 
found flying very low down and with a very lazy flight. A second 
specimen, taken later, in exactly the same spot—this time a female— 
had exactly the same habit, so it was evidently not a coincidence that 
this species was easily taken. Later on, when a magnificent specimen 
of Catonephele obrinux was seen, it certainly would have been a happy 
coincidence if it had been easily taken, or even if it had been taken 
with difficulty. . This fine Nymphalid was always found to be most 
restive and difficult to approach, and even when attracted by rotten 
fruit, which I sometimes treated it to, never seemed to be off its guard. 
The delicate shades of green on the underside, as might be imagined, 
make the insect as inconspicuous at rest as it is conspicuous when on 
the wing. But, to continue this walk which was started. One of the 
difficulties to be contended with was the crossing of several streams. 
Those that are not too wide can sometimes be got over with a good 
broad jump, if one is feeling fit and up to it, but such a proceeding, 
although tolerably easy in one direction, often becomes impossible if 
one wishes to return the same way. I nearly always preferred 
bridging these streams with my own private bridge, formed of a couple 
of fallen trees, which are generally obtainable in such places, which 
must necessarily be damp, and where decay is rapid. Once the bridge 
is across, it requires a lot of negotiation to safely walk over the slip¬ 
pery, moss-grown trunk ; but this “ walking of tacubas,” as these 
bridges are called in Guiana, must be got used to if one does not want 
to curtail one’s field of operations. The short cut to Kalacoon has 
this disadvantage, that there are several of these streams to cross. On 
the other hand, the lepidoptera are drawn to these situations, and, of 
course, the lepidoptera in their turn draw investigators. The Nym¬ 
phalid Hi a artorion was generally present at these critical situations, 
and as it is very easily taken when once one is on the right side of the 
stream, the inducement to be on the right side was frequently strong. 
The flight of this handsome insect is most peculiar ; it seems to flit along 
in an aimless sort of fashion, and then to settle for quite a long while. 
Often I could walk right up to the insect without its attempting to fly 
away. All the eight or ten specimens taken were secured in the early 
morning. In fact, early morning and late afternoon are quite the 
best times for collecting generally, and if one happens to be out about 
2.30 or so and waits till about four o’clock, quite an awakening of in¬ 
sect life seems to take place. Personally, also, one feels quite a relief 
often at this time from the sweltering heat, and it is probable that 
insect, bird, and animal life feel the benefit also. The true Nympha- 
lids never seemed to have too much sunshine- for their wants, but 
