BY EUSTACE W. FERGUSON. 63 



brown; elytra with a large round spot of cinnamon-brown on each side 

 about the niiddlc, und another on each side of declivity on apical tubercles of 

 second row ; sides of prothorax with a vitta of creamy squame* abo\e legs, elytra 

 with interrupted patclies of the same colour along lower border. 



Heatl strongly concave in front, the intercristal ridge low in centre; supra- 

 orbital crests large, broad at the base, the anterior ramus projecting forwards, 

 the posterior and longer upwards and backwards, the crests as viewed from in 

 front projecting strongly outwards. Rostrum rather deeply concave in front, 

 the oblique internal ridges not conspicuous, convergent to base, but not meeting; 

 basal foveae small, distinct; lateral margins raised about middle into a strongly 

 projecting triangular tubercle. Antennae of moderate length and stoutness, club 

 elongate obovate, not with a slender peduncle. Prothorax (4.5 — 5 x 5.5 — 6 

 mm.) moderately broad, ocular lobes present, not prominent; median area rather 

 broad, the median tubercles of moderate size, the first slightly elongate, the sec- 

 ond smaller, more rounded, the remainder, forming a row from a slightly more 

 outward po.sition obliquely inward towards base, conical, separate tubercles. 

 Lateral margins with a large, strongly [trojecting, median tubercle conjoined and 

 almost fused with a smaller anterior one, and with a much smaller triangular 

 tubercle, posterior to middle constriction. Elytra (10 — 12 X 6 — 7 mm), rather 

 flattened above, base truncate, humeral angles with a strong, outwardly projecting 

 tubercle; punctures small, obscure, granules obscured by clothing; firet row of 

 tubercles comprising two to three small, hardly traceable tubercles and two much 

 larger posterior ones, the last one the largest, spiniform, strongly projecting 

 backwards and situated aboVe summit of declivity; second row of four or five 

 tubercles, the basal one small, the others strong, conical, outwardly projecting, 

 the last situated on declivity, posteriorly to apical tubercle of first row; third 

 row consisting of humeral and two other strong conical tubercles. Under sur- 

 face with scattered setigerous punctures, closer and coarser on apical segment. 

 Legs simple. Dimensions: <S- 16 — 18 x (] — 7 mm. 



TIab. — Western Australia. 



Described from four specimens, type in National Museum, Melbourne. 



This species does not resemble any other species of Acantholoplms with 

 which I am acquainted, and its position in the Table is only tentative, it might 

 with almost equal propriety have been placed among the tuberculate rather than 

 the spinose species- 



ACANTHOLOPHUS TATEI Blackb. 



Blackburn, Report Horn Exped.. 1896, p. 292. 



During a recent short residence in London, I was able to examine the type 

 of A. tatei Blackb., and to compare it with a cotype (2) of A. tennante-riJiis 

 Ferg. Apart from some difference in the shape and development of the supra- 

 orbital crests, the two species are absolutely identical. The differences as noted 

 below are, however, qiute evident when comparing the crests of the two foiins, 

 and there are at least two other forms before me which show other differences 

 mainly in the crests. While gi^nng names to these different forms, I would re- 

 gard them in the light of varieties or geographical races rather than as distinct 

 species . 



All the various forms agree in the slight excavation of the dorsal surface of 

 the rostrum, in the tubercles of the median prothoracic rows being conical and set 

 in single series, in having the two anterior lateral tubercles more or less conjoin- 



