98 Mr. Arthur M. Lea's Revision of the 



There are several large dark blotches on the disc of the 

 prothorax, and the posterior angles are also dark. The 

 antennal rami, although very long, are considerably shorter 

 than in the preceding species, and their positions are not 

 the same, that on the 3rd joint being distinctly nearer 

 the apex than the base. As in other species having long 

 antennal rami the edges of these are often peculiarly 

 serrated or jagged. In the specimens before me of the 

 preceding species all the costae (except of course the 

 short scutellar one) are continuous to the apex; in the 

 specimen described above the 1st and 2nd continuous 

 costae become united close to the apex ; but this character 

 is subject to so much individual variation in other species 

 that I attach no importance to it whatever. 



Trichalus griffithi, n. sp. {Fig. 90.) 



^ . Black ; prothorax, scutellum, basal tliree-fiftlis of elytra and 

 trochanters testaceous. 



Head highly polished. Eyes very large. Antennae not much 

 shorter than the body ; 2nd joint distinct, 3rd-10th each slightly 

 produced at tip, and almost twice as long as wide, 3rd distinctly 

 longer than 4th, the others gradually decreasing in length, but 11th 

 as long as 3rd. Prothorax apparently longer than wide, but really 

 (by measurement at base) slightly transverse ; 3-areolate, median 

 areolet deep and very distinct, but its outer walls not sharply defined, 

 joined to the apex by a feeble shining carina ; apex obtusely rounded ; 

 sides gently and continuously emarginate ; base much wider than 

 apex, with the posterior angles obliquely produced and very acute. 

 Smdellum transverse, sides dilated towards apex, which is feebly 

 emarginate. Elytra narrow, almost parallel-sided ; each tricostate 

 (at base quadricostate), the interspaces with somewhat irregular 

 double rows of rounded punctures (which are separated by small 

 ridges) ; at base scutellar costa trifurcate, but only the middle arm 

 distinct. Abdomen with the penultimate segment rather deeply 

 excised. 



Length 6^ mm. 



Hob. Queensland : Herbert River (type in H. H. D. 

 Griffith's collection), Wide Bay (Australian Museum). 



On the type the apical dark marking is oblique, being 

 wider on the margins than at the suture ; although very 

 distinct it is not sharply defined, 



A specimen in the Macleay Museum (fi-om the Endeavour 



