juneicwo.] Casey : On North American Coleoptera. 159 



not correctly identified, and triste is not an Atlantic, but a Pacific, 

 species. One female of apicale in my cabinet has the two joints of 

 the antennal club equal in length : as it is not in very good condition, 

 I cannot state whether it differs specifically. The remarks made by 

 Dr. Jayne in regard to the female of balteatum are erroneous, as the 

 antennal cavity is normal in form. The same author gives " Cali- 

 fornia" as the locality of ruficorne, whereas it is confined in reality to 

 the southern Atlantic States. Picicorne, described by LeConte from 

 the southern Atlantic regions, is unknown to me, but is probably a 

 valid species. 



Anthrenini. 



The distinguishing characters of this tribe are the compact body, 

 very retractile legs and the deep and acutely defined fossae for the 

 antennal club. The tarsi are short and rather slender, the basal joint 

 of the posterior distinctly shorter than the second, the next three 

 subequal or progressively decreasing slightly in length. The mouth 

 parts are completely protected in repose by the deflexed presternum. 

 The antennae vary in the number of joints, but these divergencies do 

 not indicate more than subgenera, as the structure otherwise is quite 

 homogeneous. There is but one genus : — 



Anthrenus Geoff. 



The eyes may be sinuato-emarginate within or entire as in Trogo- 

 derma, and are finely faceted as usual. The prosternal process is 

 rather narrow, impinging upon the transverse, deeply sulcate meso- 

 sternum, also as in that genus. The species are moderately numerous, 

 and number among them some of the most destructive enemies of 

 dried insects preserved in cabinets ; those before me may be easily 

 identified as follows : — 



Eyes emarginate ; antennas Il-jointed, the club broadly oboviform and composed of 

 three closely connate joints of which the two basal are strongly transverse and 

 much shorter than the last ; body clothed with broad scales. [Anthrenus 

 in sp.] 2 



Eyes entire 6 



2 — Pronotum having a large well-defined lateral spot of pale scales not inclosing a 

 darker spot 3 



Pronotum with a large pale lateral spot, as above, but inclosing a small darker spot 

 at nearly its central point. Pacific Coast 4 



Pronotum clothed throughout with a mixture of white and brown scales. Sonoran 

 regions 5 



