22] 



cc. Elytral interstices not ridged. 



(/. Iiit(»rstices each witli a single vow 



of distinct punctures quadnitolineatus 



dd. Interstices densely punctured ... crosairofitris 

 AAA. All femora dentate. 



B. Elytra with large punctures, causing the 

 second, third, and fourth interstices to 



appear to he double imitator 



BB. Elytral interstices not af)]:)arently 

 doubled. 

 C. Elytra with third and fifth interstices 

 conspicuously elevated above their 

 fellow^s. 

 e. Third interstice widei' and more con- 

 spicuously elevated near base than 



elsewhere jndchcr 



ee. Third not especially conspicuous 

 near base. 

 /. Basal segment of abdomen of male 



suddenly elevated above second fnihrrpacvs 

 ff. Basal segment normal. 



0. Shoulders very little (in male not 

 at all) Avider than widest part 



of prothorax t)i<i7irndiferus 



g(j. Shoulders distinctly wider than 

 prothorax. 



// . Femora feebly dentate aJternatus 



hJi. Femora strongly dentate ... sqiiamivarius: 

 CC. Elytra with third and fifth interstices 

 not conspicuously elevated. 

 D. Punctures of metasternal episterna 

 contin.uous throughout, 

 i. Each of third and fourth segments 

 with a single ]"ow of punctures 

 across middle. 

 j. Metasternum Avith an oblique 

 ridge on each side between 

 cox£e. 



h. Of medium size dolosus 



Ixk. Of minute size aherrans 



ij. Metasternum Avithout oblique 

 ridges betAveen cox?e. 

 /. Prothorax AA-ith three conspicu- 

 ous lines of snowy scales ... tfdinealhiis- 

 II. Prothorax without lines of 

 snoAA'y scales. 

 m. Both outer side pieces of 

 mesosternum Avith punc- 

 tures inccdJidus 



mm. Inner side piece without 

 punctures. 

 n. Elytra with interstices 

 much narrower than 



seriate punctures concinnus 



n n . Interstices at lea.st as wide 

 as seriate punctures, 

 o. Elytra with two sub- 

 median spots of AA-hit- 

 ish scales castor 



