species of Formicarious HisteriJte. 149 



" Philippeville. 



" Ressemble beaucoup k VH. Jiispanus^ le corselet etant aussi 

 plus etroit en avant que les eljtres, avec les c6tds parallMes, 

 brusquement elargis a la base pour former les angles poste- 

 rieurs, qui sout aigus et embrassent assez la base des elytres ; 

 il en difffere par la taille plus faible, la ponctuation plus forte, 

 les impressions de la base du corselet droites et non dirigees 

 obliquement en travers des angles, qui sont plus aigu." 



This species I have not seen, but I am assured by Herr 

 Joh. Schmidt, who has seen the type, that it differs specifi- 

 cally from all the others on the list at the end of this paper. 

 The type is in Baron Bonnaire's collection. 



Sternocoelis setulosusj Reitter. 



I took this species on the cliffs to the east of Oran and also 

 at Tleracen, It is dark in colour, and the thorax is much 

 more transverse than infulvus and Wcdkeri. The prosternal 

 striae are not very clearly defined, but they are sinuate and 

 turn inwards at the tips. This species stands in some collections 

 as cavisternus, Marseul ; but the latter name is a synonym of 

 punctulatus, Lucas. Herr Beitter has very kindly lent rae 

 the type for examination and comparison. 



Sfernoccelis Walkeri, n. sp. 



Breviter ovatus, ferruginous, subnitidus, fulvo-sefculosus ; fronte 

 obscure punctulata, stria ad oculos angulatiin elevata ; pronoto 

 angulis anticis obliquis, posticis obtuse productis, lateribus mar- 

 ginato parce punctalato ; prosterno sublasvi bistriato, tibiis modice 

 dilatatis. 



L. If mill. 



This species is smaller than hispanus, with the thorax 

 more quadrate and its hinder angles much less acute; the 

 legs are much shorter, but the dilatation of the tibise is almost 

 identical, and the strige, form, and sculpture of the prosternum 

 are the same. ^ Walkeri is also similar to fulv us, but it is larger • 

 the first has the base of the thorax wider, and the second 

 has the striae over the eyes less elevated. In hispanus 

 the sternal pit is distinctly angulate in the centre, in Walkeri 

 SiXi^fulvas it is not so. 



I took two examples of this insect at Maison Carrie, near 

 Algiers, on the 8th March, 1884 ; and I have seen other 

 specimens labelled Algiers. This species is named after Mr. 

 J. J. Walker, whose name appears on several of these pages. 



