138 



trans basin quam longiori vix dimidio (postice quam antice 

 duplo) latiori, crasse confuse (indisco sat sparsim, quam 

 *S'. parricollis multo minus crebre) punctulato, margine 

 antico bisinuato postico in medio (ut S. parvicollis) lobato, 

 lateribus a basi ad medium fere parallelis ; elytris (fere ut 

 >S'. parvicollis) valde striatis, interstitiis convexis subtiliter 

 sat sparsim punctulatis, apicibus simplicibus ; sternis in 

 medio sparsissime sat fortiter, latera versus sat crebre 

 acervatim (prosterno crassissime rugulose) punctulatis ; ab- 

 domine nitidissimo fere Li^vig-ato, segmentis basali apicalique 

 et ceterorum partibus lateralibus puncturis raris instructis. 

 Long., 20—24 1. ; lat., 7^— 8| 1. 

 The general appearance (in respect of colour and markings) is 

 suggestive of aS'. grandis, Don., but the prothorax is more or less 

 reddish and without a pale margin, the elytral pale margin be- 

 gins more or less behind the base and is confined in front to the 

 narrow edging outside the outermost stria (the next interstice 

 being included from the middle or thereabouts), and the apex 

 (about the apical one-fifth or one-sixth part of the whole elytra) 

 is sanguineous). 



In all other respects this species is extremely close to 

 >S'. parvicoUis, Saund., from which it scarcely differs otherwise, 

 except as follows : — It is nmch larger and distinctly wider, the 

 prothorax is evidently larger in proportion to the other parts (its 

 anterior narrowing commencing evidently further from the base) 

 and is much less closely sculptured ; on the undersurface (in the 

 same sex) the sides of the metasternum and the ventral segments 

 are much less closely sculptured. 



In all probability, the male differs from the female as in 

 parvicollis, having the undersurface much more closely sculptured,, 

 and the apical ventral segment much shorter and subtruncate. 



W. Australia ; taken by J. C. F. Johnson, Esq. 

 >S'. rectijjennis, sp. nov. Sat angusta, sat parallela ; nigra, vix 

 cyanea, elytrorum lateribus anguste (et apice late) sanguineo- 

 marginatis, prothorace (in angulis posticis) et abdomine non- 

 nullis exemplis sanguineo-notatis ; capite longitudinaliter 

 late concavo minus fortiter sat crebre (ut pra^cedentis) 

 punctulato ; prothorace trans basin quam longiori dimidio 

 (postice quam antice fere duplo) latiori, confuse sat rugulose 

 sat crebre (disco postice nee crebre rugulose) punctulato, 

 margine antico bisinuato postico in medio late sat fortiter 

 lobato, lateribus a basi fere ad medium subparallelis ; elytris 

 post humeros vix sinuatis, valde striatis, interstitiis vix 

 perspicue punctulatis, (6° toto 7° 8^ que antice confusis 

 rugulosis), apicibus late leviter emarginatis, biacutis ; cor- 

 pore subtus sat hirsuto, sat fortiter sat crebre subsequaliter 



