NORTH AMERICAN COLEOPTERA. 187 



submuricate punctures near the humeri extending obsoletely half way to apex, 

 the deflexed portion more distinctly punctured. Body beneath and femora smooth. 

 Length .92 inch ; 23 mm. 



Anterior and middle tarsi with the third joint alone bearing a small 

 space of spongy pubescence on each lobe ; hind tarsi similar. 



This species might be mistaken for laevigadim but the punctuation 

 and the tarsal characters will separate it. The thoracic spine is also 

 larger. 



One specimen 9 fi"om Peninsula of California near the northern 

 boundary. 



M. forte Lee. — Form moderately elongate, black, shining. Front punctate. 

 Scape of antennse nearly smooth, joints 3-7 annulate at base. Thorax a little 

 wider than long, base slightly narrower than apex, sides in front of the acute 

 lateral spine slightly arcuate, posteriorly nearly straight, surface of disc rather 

 irregular, median line distinct posteriorly, the surface coarsely and deeply punc- 

 tured at the basal half and more narrowly along the apex, the deflexed sides 

 coarsely punctured. Elytra elongate oval, nearly twice as long as wide, sides ab- 

 ruptly declivous, surface sparsely punctate two-thirds to apex and near the 

 humeri more coarsely submuricately punctate, the deflexed sides numerously 

 punctate near the base. Bodj' beneath and femora smooth. Length 1.20 inch: 

 30 mm. 



The anterior and middle tarsi have an extremely small spot of spongy 

 pubescence on the third joint only ; hind tarsi without spongy pubescence. 



In this species the thoracic spine is moi'e developed than in any except 

 gigas. 



One specimen S from the cabinet of Mr. Ulke. 



M. SUbrugO!$Ulli Bid.— Form moderately elongate, black, shining. Front 

 punctate. Antennre with first four joints rather coarsely punctate, the fourth 

 joint feebly annulate. Thorax as long as wide, sides arcuate, without trace ol 

 tubercle or spine, surface sparsely punctate, more coarsely along the base, apex 

 and deflexed portion. Elytra elongate oval, nearly twice as long as wide, sides 

 abruptly deflexed and obtusely margined % , more arcuately deflexed 9 j surface 

 with numerous coarse and deep punctures which extend three-fourths to apex, the 

 deflexed portion with more numerous and deeper punctures. Abdomen coarsely 

 punctured at middle, legs rather roughly punctate. Length .78-1. OS inch : 19.5- 

 27 mm. ■ 



The first three joints of the anterior and middle tarsi are spongy pu- 

 bescent over the entire surface ; the first joint of the hind tarsus is 

 spongy only near the tip, the second and third over the entire surface. 



The vestiture of the tarsi is of a grade intermediate between the first 

 six species and those which are to follow. The general rough sculpture 

 of the surface, the absence of thoracic spine and the tarsal vestiture will 

 distinguish this species. 



Peninsula of California, Cape San Lucas. 



