1918.] F. H. Gravely : Passalidae of the World. 99 



Mastochilus (Pharochilus) politus (Burmeister). 



Fig. XIII, 1. 

 Passalus politus, Burmeister. 1847, pp. 465-466. 



A number of specimens from Queensland and Victoria, and two from Tasmania 

 (Brighton). Also three presented by Mr. H. Schrader, two being from Tingha and one from 

 the Clarence River, both in New South Wales. Length 30-5-37-0 mm. 



The upper surface of the head resembles that of M. dilatatus, except that there is a 

 secondary tubercle developed on the upper side of the base of each of the outer tubercles, 

 which consequently appear very high and obliquely truncate in side view. The ridge 



Mastochilus spp., specific characters in the upper surface of the head x 4. 



1. M. (Pharochilus) politus (Burmeister). 4. M. ( Analaches) australiensis (Stoliczka). 



2. M. (Pharochilus) punctiger, Gravely. 5. M. (Getejus) grabowskii (Kuwert). 



3. M. (s. str.) quaestionis (Kuwert). 6. M. (Getejus) peltostictus (Kaup). 



bounding posteriorly the crescentic groove on the mentum is usually more pronounced, 

 and the lateral matt border is very broad and extends round in front on to the inner 

 side of the punctured area. The punctures in the lateral grooves of the elytra, though 

 sometimes irregular, and inclined to be more or less transverse behind, as a rule resemble 

 those of M. quaestionis and australasicus more closely than they do those of M. dilatatus. 



Mastochilus (Pharochilus) punctiger, n. sp. 

 Fig. XIII, 2. 



Two specimens from New South Wales. Length 33 mm. 



The small triangular frontal area is bounded laterally by high frontal ridges and inner 

 tubercles, somewhat as is M. quaestionis, but is not itself elevated. The ridges joining the 

 inner tubercles to each other and to the outer tubercles are absent, a broad transverse 

 flattened rugose band extending between the supraorbital ridges from the inner tubercles 

 to the anterior margin of the head ; behind this band the head is smooth and glossy. The 

 mentum is somewhat coarsely and sparsely punctured between the scars, with a more or 

 less triangular, extensive (but sometimes indistinct) depression in front. Its lateral parts 

 are more closely and finely punctured on the inner side, obliquely striate with a more or 

 less smooth matt border on the outer. 



The median groove of the pronotum is deeply impressed, but may be incomplete in 

 front ; the marginal grooves are coarsely punctured in their anterior extremities, which 

 bend slightly inwards ; the remainder of them is very finely punctured, as are also the 

 pronotal scars. The general surface of the pronotum is unpunctured. The scutellum 



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