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tapering forwardly. Head and pronotum strongly pilose. Legs 
entirely pale. L. 11-12 mm....-.... Ag. Horvathi J.-Hrp. 
— Dorsum of abdomen reddish, with base and apex black. 2nd 
and 3rd joints of antenne thicker; 2nd joint distinctly shorter 
than 3rd. Head shorter, not strongly tapering forwardly. Head 
and pronotum not strongly pilose. Tarsi and often part of tibiz 
fuscous or blackish. L. 11-14 mm......... Ag. versicolor F. 
6. The prey of Apiomerus lanipes F. 
One of the plants most abundantly met with in the 
western parts of the Province of Mendoza (Argentina), 
both in the lowlands and in the front ranges of the Cor- 
dilleras, is Larrea divaricata, which bears the Spanish 
name „jarilla“. It has been called a „magnetic“ or a 
„compass“ plant, because of its flat branches always being 
arranged so that the plant turns its broad sides East-West 
and its sharp edges South-North. In fact no compass 
is needed, where the Larrea is found. The shining leaves 
are covered with a sort of resin, as are many of the 
plants in the extremely hot and dry ,Channar Region“. A 
quantity of plants in these desert like districts are thorny 
and spiny bushes, with very small leaves, which are 
mostly clothed with greyish or whitish hair, and it can, 
therefore, not be wondered that very many insects feed 
on the green and smooth foliage of Larrea divaricata. 
One of these insects is a large and conspicuous Cur- 
culionid beetle, Naupactus sulphureosignatus Bl, which 
. occurs very frequently, especially in the Cordilleras de 
Mendoza. Just here, and on the Larrea, I found (Febr. 
Ist and 2nd 1905) a number of the large Apiomerus 
lanipes, which, as I soon learned, preyed on the Nau- 
pactus. I often saw an Apiomerus sitting on a dead, or 
at least paralysed, Naupactus. I did not witness, how 
the bug attacked the beetle, as my presence invariably 
frightened the hemipteron. The Naupactus is a strong 
beetle, and it would have been very interesting to see, 
how the Apiomerus could seize upon and kill the strongly 
