1873.] F. Stoliczka — Monograph of Indian Passalidcje. 157 



A specimen of Gonates navicidator from the Moluccas, in Dr, Fclder's 

 collection, has the middle frontal carina very distinct, while two others of 



upper lip, they are unequal, the left being slightly larger than the right one ; they are 

 not in any way connected with the frontal tubercles, but a smooth concave field pro- 

 ceeds from each of these to the respective ocular ridge. The latter is angular or subtu- 

 bercular above each eye, and anteriorly formed by a thin carina, terminating on the 

 angle of the clypeus with a little spine. 



Prothorax somewhat broader posteriorly than anteriorly, with a very distinct 

 central groove ; marginal furrow very narrow, with a minute punctation ; lateral scars 

 vertical, subovate, punctated ; a group of distinct dots also exists above each anterior 

 corner. 



Scutellum smooth ; waist laterally punctated. All the furrows of the elytra 

 coarsely punctated, without a trace of any kind of hair. 



Tongue tricarinate, the middle carina the strongest ; laterally slightly concave. 

 Lower lip convex, smooth, with a transversely elongated, small, marginal, smooth 

 scutellum between it and the tongue ; branches coarsely punctated. Waist, below, 

 with a small oblique, ovate scar on either side. Metasternum on the posterior part 

 sparsely, on the sloping corners densely punctated. Abdominal rings each with a 

 linear, punctated scar on either side. Prothorax, below, as well as the middle and 

 hind tibiae, sparsely covered with yellowish rufescent hair. 



Hah. — Batchian island ; a single specimen in the Vienna Museum. 



Cetejus australiensis, n. sp. 



Total length 33, width of head 7, of prothorax 9 9, of shoulders 9'6, length of 

 elytra 19"2 m.m. Whole body rather depressed. 



Left jaw slightly longer than the right one. Upper lip deeply emarginate, the 

 right half being slightly shorter and a little more rounded than the left one, as in 

 G. naviculator. Antennae with six lappets, the two first being very short, the third a 

 little shorter than the three terminal ones, which are subequal and rather slender. 

 Clypeus entirely rugose ; the horn is elongated, with a triangular tubercle on each 

 of its basal halves. The frontal ridges issue from the horn under a moderately obtuse 

 angle, (as in Le]pt. dentatus), and terminate with distinct points, connected by a very 

 fine carina, from which the margin of the clypeus descends almost vertically. Both 

 marginal tubercles are pointed, similarly formed, but the left one is conspicuously 

 larger than the right. Bach frontal tubercle is connected by a short carina Avith its 

 corresponding marginal one, and besides also with its corresponding small tubercle in 

 the middle of the supra-ocular ridge, each of which is truncated in front. 



Prothorax slightly broader posteriorly than anteriorly, with a fine but almost 

 complete central groove ; sides entirely punctated, lateral scar small and rounded ; 

 marginal furrow very narrow. 



Scutellum smooth, with a central basal groove ; waist laterally punctated. The 

 four central furrows of the elytra on the upper side indistinctly, the remainder 

 distinctly, punctated, those at the sides at least twice as broad as the ridges separating 

 them and with distinct transverse bacilli. This structure very strongly reminds 

 one of Basilianus cancrvs, which is also the largest species of its genus. 



Tongue tricarinate, laterally concave. Lower lip convex and smooth, with a small 



elongately semi-elliptical scutellum between it and the tongue ; a small but distinct 



scar on each side of the lower lip, its branches rather larger, rounded at the ends and 



somewhat inwardly curved, entirely but not very densely punctated. Prostornal 



20 



