BY EUSTACE W. FERGUSON .\ - ,- ., _ -^ / 31 



A. scaphirostrit: Ferg. — One spwiiiiun under stone. 



A. cupreomicans n.sp. — Under bark of Marri. 



A. maximus Mad. — Only on the ground, under stones, timber, etc." 



AcANTHOLOPHUS DUMOsus Bohem. 



Bohemann, Schonh., Gen. Spec. Cure, vii., i., 1843, p. 77; Macleay, Trans. Ent. 

 Soc. N.S. Wales, i., 1865, p. 272. 



d. Black; clothing spai-se, dark, irregularly maculate with white on elytra, 

 forming an irregular vitta along suture, on sides forming maculae above and an 

 interrupted vitta along lower margin. 



Head concave in front; intercristal ridge conspicuous; supraorbital crests 

 short, simple, briefly pointed, arising from ends of inten'crlstal ridge and from 

 liead immediately posterior to it. Rostram rather shallowly concave, lateral 

 margins feebly angulate, sometimes with a small tooth anteriorly; internal ridges 

 not conspicuous, strongly convergent posteriorly; basal foveae large, closed. 

 Antennae of moderate leng-th, funicle witli second joint longer than first, club 

 briefly pedunculate. Protliorax liattened, median area obsoletely granulate; sub- 

 median tul)ercles small, granulifonn, obsolescent in centre, the apical pair slightly 

 larger, not arranged in single series; lateral tubercles flattened, trianguliform, the 

 median one large, somewhat spiniform, curved backwards at apex, with a small 

 tubercle conjoined anteriorly, posterior lateral tubercle trianguliform, almost as 

 large as median, not recurved. Elytra rather short, with gi'anules somewhat 

 irregularly disposed; with three rows of tubercles, first row with 8 — 10, mostly 

 granuliforni, the last 2 only acute and spinifonn, ending on declivity, sometimes 

 with a few spicules beyond; second row with (i — 7, the basal tubercles conical, the 

 last 3 acutely spiniform ; humeral tubercle large and conical ; third row with 4 

 outwardly projecting spinifonn tubercles. Ventral surface coarsely strigose. 

 Intermediate tibiae notched. 



9. Larger than d" and broader and stuuter; prothorax similar, elytra with 

 fewer, more widely separated tubercles, 8 — 9, 5 and 3 on the three rows, no sub- 

 apical tubercles ; undersurface convex, ventral segments almost as coarsely strigose 

 as in d'. Dimensions : d". 16 x 5 nim. ; $. 20 X 8 mm. 



Hab. — Western Au.stralia: King George Sound, Mundaring Weir, Tenin- 

 dewa. 



The specimen from Tenindewa (dl has rather longer crests and two distinct 

 spicules on declivity in line with first row; it is also somewhat narrower. I do 

 not think it is distinct as I find that specimens show a tendency to vai-y in these 

 respects. A c? labelled "N. Territory'' is considerably more slender than King 

 George Sound specimens, but I cannot separate it, and furthermore I believe the 

 locality to be incorrect. 



.1 dumosus Boh., is more nearly allied to A. apicalis Macl., but can be readily 

 distinguished by the ateence of subapical tubercles on the elytra, and by the dif- 

 ferently sculptured ventral surface. The other species of the group differ widely 

 in many respects. 



ACANTHOLOPHUS DUMOSUS Boh. var. BREVICORNIS Ferg. 



Proc. Roy. Soc. Victoria, xxvii. (New Series), Pt. ii., 1914, p. 2.57. 



I now regard this species as a geographical race or variety of .4. dumosus 

 Boh., the distinctions not appearing sufficient to justify specific rank. Tlie occur- 



