Species of Formicarious HisteridsB. 151 



fronte opaca, dense punctata, pronoto transverse, antice grosse 

 punctata ; elytris tristriatis, punctulatis ; propygidio parce punc- 

 tato piloso ; prosterno promiuulo grosse punctato ; metasterno 

 leviter tuberculato ; tibiis auticis modice, mediis et posticis vaKde 

 angulato-dilatatis. 

 L. 2| mill. 



In size and general outline this species agrees with 

 Lewisi, Reitter, but it is very pubescent and the prosternum 

 is on quite a different plan. The thoracic punctures are large 

 in front and many are ocellated ; but they gradually become 

 smaller and fewer towards the base. The thorax is sinuate 

 laterally, with the hind angles obtuse. 



The prosternum is rather wide between the strise, with 

 large rough punctures, strise situate between the coxse and 

 terminate widely apart before the anterior lobe, posteriorly 

 the strise join to form a margin to the base. The part of the 

 prosternum comprised within the striee is built up and is on a 

 different plane from the lobe. The mesosternum has a robust 

 apex, which projects well into the prosternum. The meta- 

 sternum has a small linear tubercle in the anterior median 

 part of its basin, and its whole surface is distinctly but sparsely 

 punctulate. 



Algeria (coll. Mouchicourt) ; no special locality given. 



Sternocoelis grandis, Reitter. 



The upper surface of this insect is almost identical with that 

 of Icevidorsts, Fairm., but the prosternum is not striated, it is 

 only roughly and closely punctate. Herr Reitter has kindly 

 allowed me to see the unique specimen. In Icevidorsis the 

 strisB of the prosternum are distinct ridges, sinuate between 

 the coxae and very slightly bent inwards at the tips, and the 

 anterior lobe is short and transverse. Mons. R. Oberthiir first 

 discovered icevidorsis at Bousaada, in Algeria, and more 

 recently it has been taken at Blida by Prof. Ignacio Bolivar. 



The four following species are small and very similar in 

 their superfacies : — 



Sternoccelis pluristriatus, Fairm. 



This agrees closely in many of its characters with fusculus, 

 but the thoracic punctures are more sparse and smaller 

 and apparently not ocellated. The prosternum is also 

 broader and the strias seem to meet anteriorly. 



