26 BULLETIN 14 5, UNITED STATES NATIONAL MUSEUM 



then obliquely narrowed to the tips, which are broad, obliquely, arc- 

 uately emarginate internally, and acutely serrulate ; sides of abdomen 

 feebly exposed above; disk strongly flattened along suture, the de- 

 pression limited externally by a distinct longitudinal costa, and with 

 broad, moderately deep, basal depressions; surface coarsely, densely 

 imbricate-punctate, and each elytron ornamented with brownish yel- 

 low pubescent designs as follows : a broad, transversely oblique spot 

 at base, a broad diffused fascia at middle, in front of which is an 

 irregular spot, a more distinct, irregular shaped fascia at apical 

 fourth, which is connected narrowly along suture to a small spot 

 near apex. 



Abdomen beneath obsoletely granulose, rather sparsely, uniformly 

 punctate, and sparsely, uniformly clothed with short, recumbent, yel- 

 lowish pubescence; first segment strongly convex, without a median 

 depression; last segment broadly rounded or subtruncate at apex; 

 vertical portions of the segments not conspicuously pubescent; pygi- 

 dium feebly carinate anteriorly, but the carina not projecting. Pres- 

 ternum coarsely, densely punctate, somewhat rugose, and densely 

 clothed with long, erect, fine hairs; prosternal lobe feebly declivous, 

 and very broadly arcuately emarginate in front; prosternal process 

 broad, the sides parallel to behind the coxal cavities, then strongly 

 narrowed to the apex. Tibiae slender, and the anterior and middle 

 pairs armed with a short tooth on inner margin at apex. Posterior 

 tarsi distinctly shorter than tibiae, and the first joint as long as the 

 following three joints united. Tarsal claws dissimilar, the anterior 

 and middle pairs cleft near the tip, and the teeth nearly equal in 

 length ; posterior claws cleft near middle, the inner tooth broader and 

 shorter than outer one, and not turned inward. Genitalia not 

 examined. 



Length, 8.5 mm.; width, 2.125 mm. 



Female. — Unknown. 



Type locality. — El Taste, Lower California. 



Redescribed from the type in the collection of H. C. Fall. 



The type which was collected by Mr. Beyer is the only example of 

 this species examined, and is very closely allied to subtropicus 

 Schaeffer. It differs from subtropieus, however, in having the 

 median depression on the pronotum deeper, the anterior part of the 

 depression distinctly narrower than the posterior part, the depression 

 on front of head deeper, the pubescence on upper surface brownish 

 yellow instead of pale yellow, and also by the different arrangement 

 of the pubescent markings on the elytra, which may be more or less 

 abraded in the type of lucanus. 



