BY THE REV. T. BLACKBURN. 1249" 



Of the previously named species of this genus, abbreviatus, 

 Putz., crassicollis, Putz., and ])rominens, Putz., are not described, 

 their author having merely, in notes consisting of three or four 

 lines, mentioned three or four points of difference between them 

 and aS'. oblongus, planiceps, and procer^cs respectively; they appear 

 to be so extremely close to those species as almost certainly to 

 differ similarly from the present one in most respects. From 

 planiceps and j^^'ocerus, as well as mm'ginatus, Putz., its stout short 

 antennae, — with subapical joints almost transverse, sufficiently 

 distinguish S. obscuripes. S. oblongus and its satellite {abbreviaius) 

 appear to have antennae more or less resembling those of the pre- 

 sent species, — but in oblongus the elytra are said to be " simply 

 striated," and abbreviaius is differentiated from oblongus by there 

 being " traces of puncturation tow^ards the base of the internal 

 stria?," — whereas in 5. obscuripes the elytral striae are punctured 

 almost as in S. p)lciniGeps, except that close to the lateral margin 

 the stri^ and puncturation alike become feel)le. In aS'. oblongus 

 (and presumably in abbreviatus) moreover the external teeth of 

 the front tibia? should be shorter than in jy^^oc^rus, whereas in the 

 example of obscuripes before me tliey are longer than in either 

 sex of procerus. In S. foveiceps, Macl., inter alia, the structure 

 of the legs is said to be as in S. rugicejjs, in which case the front 

 tibiiB are very much wilder than in .S'. obscuripes. From all the 

 described species, unless /oveice2)s, the present insect seems to differ 

 in the dark colour of its legs. There seems to have been some 

 ambiguity in the terms em])loyed to describe the external den- 

 tation of the anterior tibia? in Scolyptus ; the apical external 

 extension of the tibia itself apparently having been by various 

 authors excluded in numbering the teeth. 



In calling the anterior tibioe of the ])resent species "tridentate " 

 externally, I have included the curved produced apex of the tibia 

 itself, — as is usual in characterizing species of Carenum, k,c. 



Burrundie, N. Terr., of S. Australia ; taken by Dr. BovilL 



