collected in Vancouver'' s Island. 385 



however, belong to a difFerent group, having the elytra biden- 

 tate at tip. This species differs conspiciiouslj from L. cordi- 

 fera and its allies by the tubular constriction of the apex of 

 the thorax being very well marked and longer than usual, and 

 by the base being less prolonged at the middle and more 

 broadly bismuate ; the posterior impression extends eiftirely 

 across the base, and is very strongly marked and nearlv 

 straisrht. 



In the name of this fine and conspicuous species I desire to 

 commemorate the labours of Messrs. Henry and Joseph 

 Matthews, who, inspired by the same love of science to which 

 we owe many valuable memoirs in entomological literature by 

 their brother, the Rev. A. Matthews, have with great zeal ex- 

 plored the wildernesses of British Columbia and Vancouver's 

 Island, and, in fact, have obtained the best material yet pro- 

 cured for a study of the distribution of species in those regions, 

 which remain, in a scientific sense, the most unexplored por- 

 tions of North America. 



Atimia, Hald. 

 Atimia dor salts. 



Nigro-picea, pube brevi depressa fulvo-sordida dense vestita ; thorace 

 latitudine vix breviore, quadrato, ad apicem subito angustato, 

 latenbus baud rotundatis, modice punctate, \atta dorsali lata sub- 

 nuda ; elytris antice parco punctulatis, vitta denudata sub- 

 suturah pone medium extrorsum bidentata, et sensim angustata 

 notfltis. 



Long. 10 millim. 



Vancouver's Island. A specimen was also collected in 

 Southern California by Dr. G. H. Horn. 



This species is very closely related to A. confusa (Ch/iwi 

 confusus, Say, A. tristis, Hald.), but differs by the prothorax 

 being less transverse, almost quadrate, and scarcely rounded 

 at the sides, except near the apex, Avhere it is suddenly nar- 

 rowed : the arrangement of the denuded spots is somewhat 

 similar ; but the sides of the thoracic vitta are straight and the 

 elytral sjjots are confluent, forming a vitta extending nearly 

 to the tip, with two external dilatations— one at the middle 

 the other at the extremity ; the tip of the elytra is more 

 squarely truncate, and the general form a little less robust 

 than in A. confitsa. 



Ann.d;Ma(/.X.Ih\sK Ser. 4. I'ol.iv. 28 



