90 ENTOMOLOGICAL SOCIETY 
flower beetle, Euphoria basalis G. & P., stating that he found 
the species on cotton blooms at Gomez Palacio, in the Laguna 
district of Northern Mexico, and at Cuernavaca. The beetle 
was very common at both places and to a certain extent 
injurious. He frequently found two beetles in a single cotton 
bloom, and in one case four. Published records show the 
occurrence of this beetle only in Mexico and there only in 
the plateau region not in tropical portions, apparently. 
Dr. Morrill, however, called attention to the fact that Gomez 
Palacio has an elevation of only 2, 700 feet, while Cuernavaca, 
seven degrees of latitude further south, is about 5,000 feet 
above sea level, thus showing that the species really has quite 
a geographical as well as vertical range. The specimen 
shown from Gomez Palacio is large, with dull yellow markings, 
and the hundreds of specimens observed at that place were 
of about the same size and color. The specimen from Cuerna- 
vaca, on the other hand, is smaller, with markings of a more 
intense yellow, and is typical of the many observed there. 
Dr. Morrill stated that there were fourteen specimens of this 
species in the National Museum collection all labelled "Mexico," 
without other information concerning locality. No two of 
these specimens are alike and they present gradations in color 
and size between the specimen from Gomez Palacio and the 
one from Cuernavaca. 
Mr. Fiske presented the following paper: 
CATOGENUS RUFUS, 
A Coleopterous Parasite. 
BY W. F. 
During the summer of 1903, a single specimen of this beetle 
was bred from the cocoon of a Hymenopterous (Braconid) 
parasite of the Elm Borer (Saperda tridentata), but subsequent 
examination of the cocoon failed to determine definitely whether 
the beetle had developed on the parasite itself or whether 
it had entered the empty cocoon and there pupated. The 
former theory was believed to be the true one, but could not 
be proven. During 1904 three specimens were bred under 
circumstances which cannot be construed otherwise than to 
amply confirm it. 
