148 Mr. W. W. Saunders’s Descriptions 
Sp. 12. Idiocephala tasmanica, mihi. 
Head rufous brown, with three round yellow spots placed in a 
triangle on the face. Eyes and parts of the mouth dark brown. 
Antenne fuscous brown, gradually getting darker towards the 
apex, with the basal joint dull yellow. ‘Thorax rich rufous brown, 
with the lateral and anterior margins yellow, and a narrow yellow 
longitudinal streak, half the length of the thorax, on each side of 
the vertex, commencing on the posterior margin. Scutellum 
yellow brown. Elytra rich rufous brown, with the apex, and a 
narrow margin round the scutellum, yellow; each elytron with 
four nearly equidistant longitudinal ridges, the two nearest the 
suture well defined, the others sub-obsolete, deeply and minutely 
punctured. Under side of body with the thoracic and metasternal 
regions dusky brown (the latter deeply punctured), abdomen 
yellow. Legs rufous brown, with the apices of the femora yellow ; 
tarsi dusky. 
Length 13, inch. 
In the Collection of the Entomological Society. 
Taken in Van Diemen’s Land by Mr. Darwin. 
Sp. 13. Idiocephala sub-brunnea, mihi. 
Head shining black, minutely punctured, with the face rufous 
brown. Eyes black; mouth piceous. Antenne black, with the 
first and second joints rufous brown. Thorax rufous brown, 
shining, somewhat gibbous in front, obsoletely punctured. Scu- 
tellum smooth, shining black. Elytra corneous brown, shining, 
deeply punctured, the punctures forming regular striz laterally 
near the apex, with a margin along the base, which extends round 
the scutellum and half way along the suture, black, with a greenish 
iridescence. Legs corneous brown, with the tarsi piceous. Under 
side of body corneous brown, pubescent, with the mesosternal 
region black. 
Length +8, inch. 
In the Cabinet of the Entomological Society. 
Taken by Mr. Darwin in the vicinity of Sidney, New South 
Wales. 
Sp. 14. Ldiocephala Darninii, mihi. 
Head black, with a large triangular patch just above the mouth 
rufous brown; deeply punctured. Eyes black. Antenne dusky 
brown, with the first, second and third joints underneath rusty 
