1938 ] 
Genus Zilora 
101 
A REVISION OF THE GENUS ZILORA 
By Edith W. Mank 
Lawrence, Mass. 
The genus Zilora belongs among those Melandryidse which 
are characterized by ( 1 ) a thorax narrower at the base than 
the base of the elytra, (2) depressions at the base of the 
thorax, (3) an abdomen where the first two segments are 
decidedly longer than the last three. 
As represented in the United States, the genus includes 
beetles with the head short, the antennae slender, the last 
segment of the maxillary palpi securiform, at least the pos- 
terior part of the lateral edge of the thorax sharp, parallel 
sided elytra. On the under side, the episternal sutures are 
present, the anterior coxal cavities have a lateral fissure, 
the trochantin is visible, the middle coxae are separated by 
the mesosternum. The pubescence, except in Zilora nuda 
where all types of erect pubescence are wanting, consists of 
two kinds. The general pubescence is suberect and plentiful 
but there are also fine erect hairs in rows, only seen when 
the specimen is viewed in profile. The erect hairs either 
form complete rows or are confined to the rear half of the 
elytra. 
Of the American Ziloras previously described, the type of 
Zilora hispida Lee. has been examined. The type of Zilora 
nuda Prov. is known to me personally only from description, 
but specimens of nuda in my possession have been compared 
for me by Mr. N. M. Comeau with the type which is in the 
Museum at Quebec and they were found to be identical with 
the type. A specimen labeled as the type of Zilora canadensis 
Hausen is in the Winn collection which is now in the collec- 
tion at McGill University. Through the kind offices of Mr. 
G. Chagnon, it has been possible to examine this specimen. 
The specimen bearing the type label was found to be a 
Scotochroa and not a Zilora. It seems probable that the 
type is lost for this beetle does not have the securiform ter- 
minal segment of the palpi, nor the erect hairs mentioned by 
Hausen himself as present in Zilora, nor is the punctuation 
