new Species of Histeridse. 115 



and more distinct along their bases ; the presternum is not 

 striate ; the mesosternum is emarginate and the marginal 

 stria complete ; the anterior tibia? are 3-dentate. 



This species is very similar to M. pilicollis, Sch. It differs 

 by the form of the external thoracic stria, which is not close 

 to the edge behind the anterior angle, by the internal stria 

 being more sinuous laterally, and by the fine punctuation of 

 the pygidia. 



Hub. Mombasa, E. Africa. 



Ulster maroccanus, Sch. Ent. Nachr. xiii. p. 353 (1887). 



The above was described as a variety of //. amplicollis, Er., 

 but I think that it is a distinct species; it differs by the very 

 narrow interstice of the lateral thoracic stria and by the fine 

 surface-punctuation, which resembles that of H. grcecus, 

 Brulle\ 



Hister amplicollis, Er., 1810, = thoracicus, Payk., 1811, 

 n. syn. 



As no species resembling Paykull's figure of thoracicus has 

 been found in America, I sent an example of amplicollis to 

 Prof. Yngve Sjostedt, who has compared it with Paykull's 

 type of thoracicus, and he has found that it corresponds except 

 in a slight variance in the denticulations of the anterior tibia 1 . 

 Paykull's figure of thoracicus represents amplicollis very well, 

 and there has been evidently a case of mistaken locality. The 

 outer thoracic stria in the species is often complete, but I 

 selected one with a short stria to send to Stockholm, as it is 

 so figured in PaykulFs monograph. 



I lister vadatus, Lewis, 1908. 



Ovalis, convexus, niger, nitidus ; fronte stria antice recta ; pro- 

 noto bistriato ; elytris striis 1-4 integris, 5 obsoleta, suturali 

 utrinque abbreviata ; propygidio pygidioque puuctatis ; meso- 

 sterno stria marginali in medio interrupta ; tibiis anticis 3- 

 dentatis, apicali dente immani. 



L. 7 mill. 



Oval, convex, black and shining ; the head, frontal stria 

 complete, straight anteriorly, and rounded off on either side; 

 the thorax, marginal stria very fine, two lateral well-marked 

 and parallel to each other, the outer stria terminates behind 

 the eye, inner continued behind the head; the elytra, humeral 

 stria wanting, dorsal 1—4 complete, 5 indicated by a few apical 

 points, sutural abbreviated at both ends, the ends turn away 



