no. 3649 LEPTOFERONIA — HACKER 3 



posited in the United States National Museum in Washington, D.C. 

 (USNM). Para types are in the collections of the California Academy 

 of Sciences, San Francisco (CAS) ; of the Fenders, McMinnville, 

 Oreg. ; of the Museum of Comparative Zoology, Cambridge, Mass. 

 (MCZ) ; of the USNM; of the University of Washington, Seattle (UW) ; 

 and of the author. 



Measurements (tables 1-4). — Width of head: Maximum width 

 through eyes or through genae in those with very small eyes. 



Width of pronotum between anterior angles: Distance between tips 

 of angles. 



Width of base of pronotum: Distance between tips of angles except 

 in inopinus Casey, infernalis Hatch, pumilus Casey, fenyesi Csiki, 

 and cochlearis, new species. In these species it is the distance through 

 the posterior pair of setiferous punctures. 



Width of pronotum: Maximum width. 



Length of pronotum: Length along midline, not necessarily the 

 maximum length. 



Width of elytral humeri: Distance between humeral dentations. 



Width of elytra: Maximum width across both elytra together. 



Length of body: Distance from tips of mandibles to elytral apices, 

 to the nearest 0.5 mm, viewed dorsally without magnification. 



Characteristics of Taxonomic Importance in Leptoferonia 



Color. — Piceous is used to mean dark brown. Rufous means a 

 light reddish brown. I do not consider any of the Leptoferonia to be 

 a true black color. Some specimens that I consider to be dark piceous 

 have been called black by other authors. 



Microsculpture. — The term microreticulate refers to fine lines 

 forming a honeycomb or scalelike pattern. Microstrigulose refers to 

 nonanastomosing lines, which are usually transverse. Micropunctures, 

 or fine punctures, are invisible at magnifications lower than about 

 X 60. Specimens often must be cleaned by being brushed with carbon 

 tetrachloride in order to observe the microsculpture. 



Head. — In some species, such as inopinus, the eyes are large and 

 protruding as is usual in the subgenus Hypherpes. They do not cover 

 the entire genae in either subgenus. In several species the eyes are 

 smaller and flattened. The frontal impressions are long and sharply 

 impressed in most species. In a few, such as sphodrinus LeConte, 

 they are shallow and short. The term "forming an angle of 45°" means 

 that lines drawn through the two impressions would intersect at an 

 angle of 45°. 



Pronotum. — There are usually two pairs of lateral setiferous 

 punctures; the anterior pair is before the middle, and the posterior 



