30 U.S. NATIONAL MUSEUM BULLETIN 290 



Cryptocephalus amatus fracttUneatus^ new subspecies 



Figures 6, 95, 116 



Head: Front creamy yellow with inverted V from vertex to antennal 

 insertions deep orange, clypeus and labrum more or less orange, 

 antennae of male about three-fourths length of body, basal five 

 segments dull orange to brownish, last six segments dark brown. 



Pronotum: Deep orange with light markings creamy yellow, not 

 sharply deUmited; a narrow median, longitudinal, yellowish, indistinct 

 stripe at anterior half; lateral margin yellowish, narrowly so at basal 

 half, more broadly so at anterior half; anterior margin narrowly 

 yellowish ; with vague indications of light, oblique basal spots. 



Elytra: Ground color creamy yellow, dark markings black, sharply 

 delimited by striae. Dark markings of each elytron as follows: on 

 suture from base to apex; on first interval except basal third; on basal 

 third and apical sixth of third interval; on humerus and sixth and 

 seventh intervals to past middle, latter markings joining those of 

 fifth interval at middle. Rows of punctures in yellow areas more or 

 less darkly pigmented. Punctures as in a. amatus. 



Ventral surface: Prosternum at center, mesosternum and side 

 pieces, and first abdominal segment basaUy at center yellowish; 

 prosternum at side and legs basally orange, latter nearly brown 

 apically; metasternum, metepisternum, and first four abdominal 

 segments (with above exception) reddish black; fifth abdominal 

 segment reddish at middle, orange at side; pygidium reddish, nearly 

 black at center. Anterior margin of prosternum in male as in a. amatus. 



Length: 3.8 mm. 



Type data. — Described from a single male specimen bearing the 

 following data: Platte County, Wyoming, June 30, 1951, R. E. Pfadt 

 collector; USNM type number 69247. 



Discussion. — This subspecies is most similar to a. apicedens Fall; 

 the most apparent difference between the two is the extent of the 

 vitta on the thhd interval. In a. apicedens, this vitta is continuous 

 throughout or narrowly interrupted near the apex. In a.fractilineatus, 

 this vitta is broadly interrupted from before the middle to before the 

 apex. The subspecific name (meaning broken fine) refers to this 

 interrupted vitta. The male genitaha of a. amatus and a. apicedens 

 are essentially identical to this subspecies in external and internal 

 form. 



Cryptocephalus arisonensis arisonetisis Schaefifer 



Figure 43 

 Cryptocephalus arizonensis Schaeffer, 1904, p. 225. 



Pronotum: Orange to red, often with basal obhque spots and 

 margins vaguely fighter; punctation dual, larger punctures minute to 

 small. 



