1917] HololeptincE of the United States 387 



The supraorbital stria may be narrowly interrupted at about 

 its middle. The punctation at the sides of the pygidium may 

 coalesce to form a well defined stria of varying length, depending 

 on how many punctures are involved. This stria is always near 

 the base of the pygidium. 



The males are usually but not always narrower, and more 

 elongate than the females; their mandibles are longer in pro- 

 portion to the length of the head, and the thoracic marginal 

 stria is more strongly dilated in the apical half. The length of 

 the stria appendicular is not correlated with sex, and yucateca 

 and grandis while opposite sexes, are not so because of the length 

 of the appendicular stria, but because of their shape. Yucateca 

 is probably the female and grandis the male, contrary to what 

 Horn says. 



This species is reported from decaying Cereus; in the fruits 

 of Cucurbita, Echinocactu viridescens, and in the leaves and 

 stalks of Opuntia occidentalis (Fall, 1901). 



Hololepta yucateca is very variable and the species as now 

 accepted may be made up of several different elements. Facies, 

 length of mandibles, supraorbital stria, sculpture of front, 

 length of subhumeral stria, length of second stria and its 

 appendix are all variable, but I have been unable as yet to find 

 correlations in any of these characters. The form which has 

 no apical appendix to the second stria closely resembles princeps 

 of Leconte in size and facies, but is easily separated from the 

 latter by the punctation of the pygidium. 



Hololepta (Leionota) pervalida Blaisdell Zoe III, p. 327. 1892. 



Hololepta pervalida Lewis, Ann. Nat. Hist., XIV, p. 139. 1904. 

 (to consider pervalida a Mss. name). 



pervalida Lewis Catalog., p. 3-5, 1905. 



pervalida Schaeffer, Ent. News, XVIII, p. 301, 1907. 



pervalida Lewis, Ann. Mag. Nat. Hist., XX, p. 96. 1907. 

 Narrowly oblong. Front with two mammifomi elevations which 

 are delimited by a fine impressed line, deepest at apex, behind the 

 mandibles. In the basal portion of the delimiting line on each side lies 

 a stria which is composed of a series of punctures, and posterior to the 

 stria is a sparsely punctured area which extends across the front, 

 weakest in the center. At the apex of the front in the groove between 

 the elevations there is a small tubercle in the male. Preocular tooth 

 strong, slightly depressed. Supraorbital stria distinct, of varying 

 length, often interrupted. Mandibles stout, carinate, upper margin 



