4IO CALIFORNIA ACADEMY OF SCIENCES. 



shining. Legs rufescent, posterior femora finely alutace- 

 oiis. Length, .08 inch; 2 mm. 



This species is the largest of our apterous forms, and 

 differs from all known in our fauna by its color. 



Maro'arita Island. 



Bruchus Julianus n. sp. 



Facies robust, approaching scutellaris, but otherwise 

 ver}' different, dark chestnut brown, with brownish pu- 

 bescence variegated with ochreous above, ochreous be- 

 neath. Head coarsely punctate, a smooth carina between 

 the eyes which are well separated. Antennae piceous, 

 the four basal joints pale. Thorax conical, broader at 

 base than long, surface coarsely and moderately closely 

 punctate, the intervals densely punctulate surface clothed 

 at the sides with ochreous pubescence, the middle brown- 

 ish. Elytra conjointly square with rounded corners, reg- 

 ularly striato-punctate, the punctures not coarse, intervals 

 fiat, closely punctulate, clothed with rather coarse brown- 

 ish pubescence with whitish patches irregularly scattered, 

 some ochreous spots at base and others in alternate inter- 

 vals forming a much broken fascia at middle. Body be- 

 neath with ochreous or dull yellow pubescence irregularly 

 scattered. Pygidium densely clothed with ochreous pu- 

 bescence. Posterior femora with an acute tooth and three 

 denticles. Posterior tibia? with a short spur. Length, 

 .12-. 20 inch; 3-5 mm. 



This species belongs to a group in our fauna contain- 

 ing but few species which approach the scittcUaris group 

 in form, while Group vii of my revision contains species 

 of more oblong form. Bruchus is a genus of very difh- 

 cult stud}^ and the results obtained by Dr. Sharp in the 

 more numerous species of Mexico are not more satisfac- 

 tory than my own published twelve years anteriorly. 



Occurs in Texas. San Julio and San Ignacio. 



