Australian Phytophaga. 391 
surface distinctly punctured, the puncturing rather dis- 
tant on the disc, closer on the sides; scutellum obovate, 
its apex obtuse; elytra not broader at their base than 
the thorax, twice its length, finely but distinctly punc- 
tate-striate; interspaces plane; on the outer margin 
the two outer striz are sulcate, and their imterspaces 
convex. 
Genus LACHNABOTHRA, Saunders. 
Trans. Ent. Soc. Lond., vol. iv. p. 294. 
The genus Lachnabothra was formed by Mr. W. W. 
Saunders in 1847, on a single female example in the 
cabinet of the Rev. F. W. Hope; this insect being 
figured and described by him as Lachnabothra Hopet ; 
the Suffrian, who subsequently (in 1859) monographed 
Australian Cryptocephalide, sank Lachnabothra, and 
placed Mr. Saunders’ species in the fourth section of 
Erichson’s genus Cadmus ; both authors appear to have 
known the ¢? only, but more than twenty years previously 
a ¢ specimen belonging to the genus, was described 
and figured by Dr. Klug (Ent. Mon. p. 159, tab. vi. fig. 
9, 1824) under the name of Chlamys (?) braceata ; Klug, 
who was unacquainted with the locality of his insect, 
pointed out its affinity to the Cryptocephalide, thus 
indicating its true position. For some years’ after the 
publication of Mr. Saunders’ and Dr. Suffrian’s works, 
the species were very rare in cabinets, but latterly, 
owing to the exertions of Messrs. Waterhouse, Wilson, 
and Odewahn, in South Australia, and of various other 
collectors in the Western, and other parts of the con- 
tinent, many specimens of both sexes of species be- 
longing to the genus have become known to us. I 
myself, possess no less than eight distinct forms (the 
descriptions of which I have given below), im my own 
collection. 
The characters of the males, as distinguished from the 
females, are as follows :— 
Antenne much longer than the body; the ultimate joint 
compressed, generally broader than the penultimate. 
Thorax more or less gibbose, the gibbosity divided into 
two distinct protuberances. 
