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PSY CEH: 
CAMBRIDGE, MASS., AUG. 
1880. 
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PROCEEDINGS OF SOCIETIES. 
ENTOMOLOGICAL SECTION OF THE ACADEMY OF 
NATURAL SCIENCES, PHILADELPHIA, PA. 
[ Abstract from the Monthly proceedings, concluded 
Srom page 89.] 
9 May 1879. — Mr. McCook described and fig- 
ured [Proc., p. 11, fig. 1,2] a nest of Tarentula 
tigrina n. sp., from New Jersey. Dr. G: H: Horn 
remarked upon Cantharis deserticola, Mycetina 
limbata, Dasycerus sulcatus, Adelops hirtus and 
Sarpedon scabrosus ; also upon the classification 
of the nitidulidae and the monotomidae ; he thought 
the latter family would probably have to be re- 
united with the lathridiidae. — p. 9-18. 
9 JunE 1879. — Mr. C: A. Blake exhibited some 
rare lepidoptera; also an Actias luna % having 
an ocellus on the left fore wing, midway between 
the usual discal spot and the apex, and about 3 
mm. beneath the costal margin, and having some 
of the colors on the wing suffused; also an A. 
luna Q, upon the wings of which the discal spots 
were irregular and the colors diffused; also a 
Junonia lavinia peculiarly colored. Mr. Blake 
remarked, with figures [Proc., p. 14], on the form 
and attachment of the wing-scales of some spe- 
cies of Morpho and Hipparchia. Dr. G: H: Horn 
communicated a table [Proc., p. 14-16] of the 
(13) North American species of Adelocera, with 
a list of changes and synonymy among the elate- 
ridae. Mr. E. T. Cresson described Jbalia rufipes, 
I. montana, and 6 species of Pterochilus from the 
western U. S., and Aulacus pallipes from Massa- 
chusetts, 9 n. sp. — p. 13-20. 
PS YCHE. 
12 Sept. 1879.—Dr. G: H: Horn remarked 
upon the classification of the eucnemidae, with 
especial reference to Cerophytum and Perothops, 
“which should be excluded from the eucnemidae 
each to represent a sub-type of the greater elate- 
ride complex ” including the euenemidae, the ceb- 
rionidae, the throscidae, and the elateridae proper. 
Dr. Horn reviewed the dascyllidae, directing spe- 
cial attention to certain hitherto unnoticed char- 
acters in the related genera Eubria (which does 
not occur in our fauna), Ectopria |[Eurea}, Dicra- 
nopselaphus and Acneus n.g.; he also indicated 
the new genus Placonycha, of which Dicranopse- 
laphus edwardsii is the type. Mr. H: C. McCook 
exhibited an artificial formicary containing liy- 
ing specimens of Myrmecocystus mexicanus, and 
described the nests and habits of the ants. He 
also remarked upon the habits and architecture 
of Pogonomyrmex occidentalis. Mr. E. T. Cresson 
described 5 new species of Hucerceris from New 
Mexico, Colorado and Nevada. — p. 21-25. 
14 Nov. 1879.— Dr. J: L. LeConte remarked 
upon his paper, entitled, “ Short studies on North 
American coleoptera.” Mr. E. T. Cresson de- 
scribed 10 new species of Metopius, 8 from Ne- 
yada and Colorado, and 1 each from Florida and 
Maryland. Dr. G: H: Horn described a case of 
dimorphism in Desmocerus auripennis 9 , consisting 
in a different size of markings and a different 
fineness of punctuation of the elytra, and men- 
tioned other instances of dimorphism in coleo- 
ptera, which occurs almost exclusively in the fe- 
male sex. —p. 26-31. 
8 Dec. 1879.—Dr. J: L. LeConte remarked 
upon the structural peculiarities of Propalticus 
oculatus, one of the mycetophagidae from the Ha- 
waiian Islands. Dr. G: H: Horn described a de- 
formity in the left anterior tarsus of Cremasto- 
chilus saucws, the last joint of which seemed to 
be triple, and alluded to the tendency of deform- 
ities to exist by triplication. Mr. E. T. Cresson 
described 7 new species of Philanthus from the 
western U.S. The following officers were elected 
for the year 1880:— Director, J: Lawrence Le- 
Conte; Vice-Director, G: H: Horn; Recorder, James 
H. Ridings; Treasurer, Ezra Townsend Cresson ; 
Conservator, G: B. Cresson ; Publication Committee, 
G: H: Horn, S: Lewis. — p. 31-04. 
