1004 : General Notes. [October, 
be disposed in the following order, the numbers referring to the 
tarsal joints: 
Triarthron 5—5—5, ¢' È. Amphicyllis 5—5—4, g. 
Stereus 55, do. 5—4—4, 2. 
Hydnobius 5—5—5, ¢ Q. Agathidium 5—5—4, cf 
Dietta 5—5, ow ?.. 544, £ 
ogdu —5—4, d ©. 44-4, F 
Anisotoma 5—5—4, ¢ Q. Agaricophagus 4—3—3, ¢' 9. 
‘Colenis —5—4, J Ẹ. Aglyptus a Yaar $: 
Cyrtusa —5—4, d Ẹ. r Sak E, 
Isoplastus 5—5—4, @. Scotocryptus 3—3—3, co! Q- 
—4—4, ' 
Liodes —5—4, a 
—4—4, 2. 
In a study of the above arrangement it will be seen that Scoto- 
cryptus follows naturally the course indicated by the genera which 
precede it. In order that the numerical combinations shall be 
complete, several new genera will have to be discovered, and the 
missing genera may be hypothetically indicated, as far as the tar- 
sal structures, by any one whose inclinations run that way. 
n the tribe Clambini the tarsi are 4-4-4 in both sexes in the 
genera known to me. 
he antenne of the Anisotomini exhibit a somewhat similar 
tendency to numerical modifications: First, by having nine or ten 
joints ; second, by the variation of the number of joints com- 
posing the club, being either three, four or five. 
ENTOMOLOGICAL News.—Entomologische Nachrichten for Au- 
gust is mainly devoted to an article, by J. Schilde, on the secon- 
ary causes and relations in the markings of butterflies. The 
structure of the halteres of Diptera has been studied by Mr. A. 
B. Lee. These organs were believed by Leydig to be organs of 
hearing. It appears, according to the abstract in the Journal of 
the Royal Microscopical Society for August, that there are two 
distinct organs contained in each of these structures, one an 
auditory organ, the other an organ of problematical function, 
egos ) y e po 
ores Handbuch der Palzontologie relating to fossil 
has been prepared by Mr. S. H. Scudder. 
