CRYPTOCEPHALUS IN AMERICA NORTH OF MEXICO 29 



Cryptocephalus amatus apicedens Fall 



Figures 7, 40 



Cryptocephalus apicedens Fall, 1932, p. 22. 



Pronotiim: Yellow to (sometimes) light orange with four broad, 

 light reddish to nearly black longitudinal vittae, latter frequently 

 coalescing and interrupting or narrowing intervening yellow; puncta- 

 tion dual, larger punctures minute to small. 



Elytra: Yellow to (sometimes) light orange with black markings. 

 Markings as follows: scutellar interval usually darkened to black; 

 first interval dark reddish to (usually) black; second interval dark 

 reddish to (usually) black nearly always throughout; intervals five 

 to and including eight dark reddish or (usually) black nearly through- 

 out; sixth interval at base and seventh at apex often yellowish to 

 varying degrees; vittae nearly always sharply delimited by striae. 

 With eight rows of punctures (sometimes apparently nine at base), 

 fifth, sixth, and seventh confused, punctures a little larger than usual, 

 distinct to apex; inner and outer rows distinct at apex and nearly 

 always clearly uniting. 



Prosternum: Male with anterior margin lobed and with a short, 

 sharp, vertical spine behind margin; female with anterior margin 

 broadly lobed and rather produced, lacking a spine. 



Length: 3.4 to 4.3 mm. 



Discussion. — Fall (1934, p. 174) synonymized his apicedens 

 (incorrectly cited as apicidens) with amatus Haldeman. I find sufficient 

 differences between Haldeman's amatus and specimens that agree 

 closely with Fall's description of apicedens to justify ranking apicedens 

 as a subspecies of amatus. In a. amatus, the first elytral interval is 

 not darkened; the third interval at about the basal third is vaguely 

 darkened to black and vaguely to distinctly darkened at the apex; 

 the fifth and sixth intervals (the fifth stria becomes obsolete) are 

 distinctly darkened to black at the apical half, the humerus is black, 

 and the seventh interval is vaguely darkened at the base to black 

 nearly throughout. In a. apicedens, the first interval is black or dark, 

 and this dark vitta continues to the apex; the third interval is dark 

 or black throughout though sometimes interrupted near the apex. 

 The fifth interval (and the combined fifth and sixth beyond the 

 middle) is black or dark throughout; the humerus and eighth interval 

 are black or dark. The latter two vittae are joined at the middle or are 

 confluent throughout. 



Distribution.— The nine specimens examined are from Fort 

 Wingate, New Mexico, and Colorado Springs, Colorado. 



313-144—68- 



