R.UTELIISLE 43 



close-set as to be generally subtransverse, the intervals subequal 

 throughout and very convex, especially laterad, the broader second 

 interval with two irregular sulciform series of punctures, broadly 

 confusedly punctate apically; pygidium with the dense wavy sculp- 

 ture strong and sybgranuliform; sterna and hind coxae coarsely, 

 rather closely punctate and with short fine inconspicuous hairs; 

 anterior tibiae with a single strong obtuse external tooth, the apical 

 process slightly recurved; female generally a little smaller and less 

 stout than the male. Length (c? 9 ) 12.6-15.0 mm.; width 6.7-8.6 

 mm. Florida to Missouri and westward at least as far as New 

 Mexico; said by Burmeister to occur also in Mexico, but not so 

 recorded by Bates. [Melolontha annulata Germ.], .marginata Fabr. 

 Form much more abbreviated, the size smaller, the coloration darker, the 

 elytra blackish, with the same strong metallic lustre as the anterior 

 parts, the sterna also blackish; head with the punctures everywhere 

 separated, sparser and smaller basally, the clypeus still shorter, 

 trapezoidal, with broadly rounded angles, with similarly reflexed 

 edges but having the punctures less confluent and, toward the suture, 

 rather widely separated; eyes smaller and even less convex; antennal 

 club (cT) much shorter than the stem; prothorax nearly similar but 

 shorter, twice as wide as long, the apical angles less prominent and 

 more rounded, the basal lobe more truncate; scutellum finely and 

 sparsely punctate; elytra as in marginata but shorter, scarcely longer 

 than wide, the two sulci of the second interval more widely separated, 

 the coalescent apical part narrower; pygidium shorter, more convex 

 apically, the sculpture nearly similar; sternal punctures not so coarse 

 and denser, those of the hind coxae relatively coarser; met-episterna 

 shorter, not over twice as long as wide. Length (cf ) 12.5 mm.; 

 width 7.0 mm. Pennsylvania incolumis n. sp. 



The tarsal claws do not differ much sexually in this subgenus; 

 the larger claw of the anterior and middle tarsi is coarsely and 

 deeply cleft at apex, and, in the female, the claw is merely a little 

 longer and more slender and not quite so deeply cleft. One female 

 from Mobile is much stouter than any other of the series at hand 

 and with a larger head, having relatively still smaller eyes, but I 

 can perceive no other differences; it is represented by the larger 

 measurement of width, but not of length, given above. 



Group II. 

 Subgenus Pachystethus Blanch. 



In general habitus this subgenus departs very markedly from the 

 others, because of the smooth polished integuments, coloration and 

 very much thickened elytral margins basally, as occasionally seen 

 in the female. The type is the Popillia vidua of Newman, which 



