( ) 
Other species of Syntomidae exhibited were the following ;— 
From Potaro River, British Guiana, Isanthrene melas, 
Trichura inathina, Sphecosoma angustatum, and Sphecosoma 
testaceiini, both the latter found with a Pompilid wasp of the 
genus Pseudagenia, also shown. Gorrebidia n. sp., with the 
Lycid beetle Calopteron serratmn. Pterygopterus clavipennis, 
with the Pompilid wasp Salius kirbyi. 
From Castro Parana, Rhynchopyga meisteri, with one of the 
Braconidae. Paraethria triseriata, with the Coleopterous 
Astylus antis. Although the last did not look much like the moth 
when dead in a box, on the wing it was wondei’fully protected. 
From Guaruja, near Santos, were exhibited two undescribed 
species of Trichura which resembled moths in a remarkable 
way, but the wasps they imitated were, unfortunately, not 
secured. The very unmothlike habits of moving the abdomen 
backwards and forwards, the waving of the antennae, and the 
vibrating of the wings was commented on. The remarkable 
tail-like appendage in the A) one of the species, as in the 
well-known species Trichura cerberus, represented undoubtedly 
the ovipositor of an ichneumon. The male sex being the better 
protected, if protection was the explanation, was very excep¬ 
tional, as in the vast majority of cases the female was the 
better protected. From Caracas, Venezuela, were shown the 
Syntomid Macrocneme lades, with a Pompilid wasp of an 
undescribed species. The two insects had been caught flying 
together. 
In the discussion which followed, the President said that 
-cases of close similarity with insects of different Orders were 
always welcome, and that in this instance Mr. Kaye had 
shown that the resemblance extended not only to outside 
appearances, but to the habits of the several mimics and their 
models. Arguments based upon cabinet specimens alone as to 
the supposed i-esemblance of originals in the field were to be 
accepted with caution. 
Mr. J. W. Tutt remarked that the exhibit was of great 
interest, particularly in the fact that the specimens exhibited, 
that resembled each other, were caught at the same time and 
in the same place by the exhibitor, and not only bore a great 
.superficial resemblance to one another, although belonging to 
