284 THE CANADIAN ENTOMOLOGIST. 



corneous process of the pygidium rather rapidly pointed and about half as 

 long as the elytra. Length, 3.9-4.2 mm.; width, 2.0-2.25 mm - Louisiana 

 (Vowell's Mill), C. \V. Leng. 



This is one of the more minute of the Scarabaeidae. 



Roplisa, n. gen. 

 This genus resemb\es»Tr/gono/>e//astfs in external facies, but is well 

 distinguished by its 9-jointed antennae, these organs being plainly 

 10-jointed in both sexes of l^igonopeltastes delta. The body is more 

 narrowly elongate-oval, similarly rather flattened above and with the elytra 

 more irregularly, and in part obsoletely, striate. The head is smaller, the 

 eyes much less developed and the tarsi are very much shorter, the 

 posterior being not longer than the tibiae, with the claws much smaller. 

 The type may be described as follows : 



R. flbridana, n. sp. — Dark brownish-testaceous throughout, the 

 elytra clouded with a darker tint, the head except anteriorly and the pro- 

 notum black and shining, the elytra opaque ; head finely, densely punc- 

 tato-rugose, the clypeus parallel and rounded at the sides, nearly as long 

 as wide, the angles broadly rounded, the median part of the apex slightly 

 sinuate ; eyes small, not prominent ; antennae short, the club oval ; pro- 

 thorax twice as wide as the head, slightly wider than long, somewhat 

 wider before the middle than at base, the sides rapidly converging 

 anteriorly ; surface glabrous, strongly, sparsely punctate, deeply impressed 

 and with dense yellow indument along all the margins, broadening near 

 the basal angles, and also in two nearly straight oblique fossae from near 

 the margin before the middle to near the median line at basal fourih ; 

 scutellum well developed, as long as wide, with pale indument ; elytra 

 rather longer than wide, broadly arcuate at the sides, slightly wider than 

 the prothorax, the yellow indument present in a short transverse 

 depression slightly behind the scutellum, extending anteriorly along the 

 suture to the latter ; striae near the suture entire and abruptly scratch-like, 

 very fine but somewhat depressed; pygidium vertical, large, closely, finely, 

 biobliquely rugulose, with indument laterally and basally ; anterior tibiae 

 with a single short, broad, angular external tooth only slightly beyond the 

 middle, the apex acute but only moderately everted. Length, 7.0-8.4 

 mm.; width, 3.3-40 mm. Florida. 



The two type specimens differ much in size, but are of undetermined 

 sex ; the anterior tibiae are similar in each. 



