372 Mr. F.P. Pascoe on some new Australian Longicornia. 
This form appears to me to differ essentially from the North 
American genus Huderces* only in the unarmed apex of the third 
antennal joint. It is true Dr. Leconte describes the thorax of that 
genus as being longitudinally plicate; but this is scarcely of generic 
value, an unpublished species from Texas, nearly allied, having it 
punctured in the ordinary way. Dr. Leconte omits the important 
character of the spine at the apex of the third joint. I do not see in 
what way M.Chevrolat’s genus Apelocerat differs from HEuderces, 
unless it be really the fact that the maxillary palpi have only three 
joints. M. Chevrolat has probably overlooked the basal joint. 
Homemota, like Huderces and some others of this family, has its 
elytra adorned with a curious raised ivory streak; but in the genera 
mentioned it is central and transverse, or oblique. Tillomorpha 
meestula, Wh. (of which I only know a single specimen, taken in 
Queensland, and now in the British Museum), nearly allied to these 
genera, appears to be a true 7%llomorpha, which is otherwise con- 
fined to Chili. 
Homemota basalis. 
H. fusco-nigra; elytris basi castaneis, singulis linea eburnea, obliqua, 
medio sita ornatis. 
Hab. Western Australia (Mr. Du Boulay). 
Brownish black, nearly glabrous, with a very few, long, slender, dis- 
persed hairs; head finely punctured, a broad groove between the eyes, 
terminating above the mouth in a semilunar impression ; prothorax with 
numerous shallow punctures; scutellum triangular; elytra divided in 
the middle on each side by an oblique, yellowish, ivory-like line, thickly 
punctured anteriorly to this line, with the base dark chestnut: behind 
the line impunctate, glossy, gradually acquiring a whitish pubescence 
towards the apex; body beneath black, the abdomen glossy ; legs and 
antennz brownish chestnut. Length 4 lines. 
THERSALUS. 
Caput breve, tuberibus antenniferis fere obsoletis. Oculi magni, late emar- 
ginati. Antenne longissime, basi distantes, scapo brevi, incrassato ; 
articulis tertio ad septimum subzequalibus, apice spinosis ; czeteris sensim 
longioribus, ultimo elongato. Prothorax transversus, lateribus rotun- 
datis. Elytra oblonga. Pedes mediocres. Pro- et meso-sterna subcla- 
vata, mutica. 
I have separated the species on which this genus is founded from 
Phacodes, Newm., chiefly on account of its antenne, especially of the 
short, thick scape and elongated terminal joint. The relative length 
* Leconte, Journ. Acad. Nat. Sciences of Philadelphia, 1851, p. 30. 
t Annales Soc. Ent. de France, sér. 4, t. ii. p. 61. 
