DYNASTIN/E 123 



the surface strongly tumid medially near the base, the apex rather 

 abruptly produced and prominently rounded; marginal gutter very 

 deep but narrow; middle coxae even more widely separated than in 

 the preceding sections, the abdomen not diffusedly punctate, each 

 segment with an even, close-set, setiferous and entire discal line of 

 punctures; legs slender but rather short, the hind tarsi (9 ) longer 

 than the tibiae. Length (9) 16.0 mm.; width 8.0 mm. A single 

 example marked "Colombia," but said by Burmeister to be Brazilian. 

 [Cyclocephala atricapilla Mann.] *atricapilla Mann. 



As noted in several of the above descriptions, many species have 

 distinct though short erect hairs arising from the dorsal punctures, 

 as well as the long pygidial pubescence of the lucida section. I am 

 not certain whether the name discoidalis, given by Chevrolat to 

 the above variety of lucida and quoted in the Dejean catalogue, has 

 ever been defined or not; it differs from lucida, in the female, by 

 the stronger pronotal punctures, more developed pronotal macula- 

 tion and smaller and shorter deplanate shelf under the lateral 

 swelling of the elytra, among the more salient features. Gregaria 

 and atricapilla are described above at some length, merely as 

 representatives of distinct sections in the genus; to the gregaria 

 section belong without doubt the Mexican picta of Burmeister and 

 the Nicaraguan conspicua of Sharp, perhaps also atripes and 

 ligyrina of Bates. There are probably other species belonging to 

 the atricapilla section also, but I cannot quote them at present. 



Anoplocephalus Schf. 



In this genus the body is stout and subcylindric in form, with a 

 notably small head and a modification of the basal part of the men- 

 turn by a large deep excavation, which, so far as known to me, is 

 not even suggested in any other generic type of this tribe. It is 

 also peculiar in many other features, as may be inferred from the 

 following description of the single known species, further statement 

 of the generic characters being unnecessary at the present time, in 

 view of the full description given by the author (Tr. Am. Ent. Soc., 

 1906, p. 259): 



Form stout, parallel, strongly convex, shining, black throughout above, 

 the pygidium, entire under surface and legs castaneous; upper surface 

 and pygidium glabrous; head small, scarcely a third as wide as the 

 prothorax, in great part castaneous, the front tumid medially, the 

 clypeus and front, including the tumid part, coarsely and very 

 densely punctato-rugose, the basal parts coarsely but more discretely 



