22 U.S. NATIONAL MUSEUM BULLETIN 29 



84(65). Each elytron with seven or eight subequal, approximately oval light 

 spots separated by their diamaters or less (figs. 52, 53) ; pronotal 



markings vague or absent 85 



Elytral pattern not as above; pronotum often with distinct 



markings 86 



85(84). Ventral surface and pronotum reddish; length 3.8 to 5.9 mm.; eastern 



to central states (fig. 53) guttulatus Olivier 



Ventral surface and pronotum yellowish; length 2.6 to 3.0 mm.; Texas; 



Fig. 52 guttulatellus Schaeffer 



86(84). Elytral punctures large, pigmented, those on yellow background not or 

 scarcely arranged in rows (fig. 64) ; southern Texas. 



cribripennis Leconte 



Elytral punctures small, in distinct rows throughout 87 



87(86). Elytra with two broad, transverse, dark reddish bands (fig. 19); pro- 

 notum with one broad, dark reddish band; Texas. 



trizonatus Suffrian 



Elytral and pronotal pattern otherwise; various localities 88 



88(87). Raised margin at side of elytra and bordering epipleuron dark brown 

 or black throughout; Fig. 101. 



gibbicolUs decrescens, new subspecies 

 Raised margin at side of elytra yellow, red, or orange throughout, rarely 



partly blackish 89 



89(88). Elytron light, with only one to four small dark spots (fig. 75) ; pronotal 

 disk inflated, coarsely punctate; length 6.0 to 7.5 mm.; Florida. 



aulicus Haldeman 

 Elytral pattern otherwise; pronotum usually moderately gibbous; 



length 2.0 to 7.5 mm 90 



90(89). Length 2.0 to 2.7 mm.; ground color light orange, pronotal and elytral 

 markings reddish to brown and more or less vague (fig. 69) ; with 



seven striae and a posthumeral series pumilus Haldeman 



T^ength 2.8 to 7.5 mm. ; markings otherwise; striae usually otherwise. 91 



91(90). Dark elytral markings longitudinal and only on alternate intervals, 



usually on intervals two, four, and six, sometimes on only two and 



four or four and six, or may also be on seven and eight (figs. 



89-92) 92 



Dark elytral markings not as above, usually transverse, composed of 



spots, or irregular 98 



92(91). With vague vittae on intervals two, four, and six (fig. 91); length 4.0 

 to 6.0 mm.; with seven striae and a short series of punctures behind 



humerus; California spurcus spurcus Leconte 



Either vittae, length, striae, or locality not as above 93 



93(92). Length 5.0 to 6.5 mm.; punctures behind humerus largely confused and 



of varying sizes (figs. 47 to 49) 94 



Length 2.8 to 4.6 mm.; punctures behind humerus not as above, quite 



regular in arrangement and size 96 



94(93). Pronotum at side lacking an isolated dark spot; Texas (fig. 49). 



simulans conjungens Schaeffer 



Pronotum at side with an isolated dark spot; Arizona 95 



95(94). Elytra with dark markings on suture and second interval vague to 

 absent (fig. 48); pronotal spot distinctly darker than adjacent 

 markings simulans eluticollis Schaeffer 



