1910.] NATURAL SCIENCES OP PHILADELPHIA. 589 



Chortophaga australior n. sp. 



1905. 1 Chortophaga viridijasciata Rehn and Hebard (not of DeGeer), Proc. 

 Acad. Nat. Sci. Phila., 1904, p. 786. [Thomas ville, Ga.] 



1905. Chortophaga. viridijasciata Rehn and Hebard (not of DeGeer), ibid., 

 1905, p. 38. [Miami, Chokoloskee and Key West, Fla.] 



1907. Encoptolophus costalis Rehn and Hebard (not of Scudder), ibid., 

 1907, pp. 289, 290. [Ocklockonee River and Thomasville, Ga.; Cho- 

 koloskee, Miami, Cedar Keys, Gainesville, Pablo Beach and Jackson- 

 ville, Fla,] 



Types: & and 9 ; Thomasville, Thomas County, Ga. December 

 10, 1902. (Morgan Hebard.) [Acad. Nat. Sci. Phila.] 



This species is closer related to C. cubensis than to C. viridijasciata 

 and C. mcridionalis, differing from cubensis in the following particulars: 

 the male sex has the fastigium less excavate, the eyes less prominent, 

 the caudal portion of the disk of the prozona less bullate and the 

 median carina of the pronotum more uniformly elevated and less 

 broadly severed: the female has the median carina of the pronotum 

 more arcuate and very narrowly severed, the caudal femora slenderer 

 and the form more compressed (in this respect resembling viridi- 

 jasciata). 



From C. viridijasciata the new form differs in the less strongly 

 keel-like median carina of the pronotum, in the less acute angle of 

 the caudal margin of the pronotum, in the broader fastigium and in 

 the markedly different color pattern, which is essentially that of 

 C. cubensis. 



Size medium; form moderately compressed. Head with the 

 occiput moderately arcuate; fastigium considerably declivent, acute- 

 angulate cephalad, the very narrow apex passing into the frontal 

 costa, the male having the cephalic angle much sharper and the 

 fastigial width much less than in the female, the latter with the width 

 slightly more than the length, disk slightly excavated; lateral foveolse 

 trigonal, not excavate; facial outline nearly straight (cT) or slightly 

 arcuate ( 9 ), subangulate with the fastigium in the male, rounded 

 in the female; frontal costa rather narrow, considerably constricted 

 dorsad of the insertion of the antennae, slightly so ventrad of the same, 

 moderately expanding toward the clypeal suture, sulcate for a dis- 

 tance ventrad of the ocellus, punctate dorsad; eyes rather prominent 

 in the male, hardly so in the female, reniform-ovate in shape, the 

 length subequal to ( 9 ) or slightly exceeding (cT) that of the infra- 



1 Probably the following refer to tins species: 



1904. Chortophaga viridijasciata Morse, Publ. No. 18, Carneg. Inst, Wash., 

 p. 33. (Part.) 



1905. Chortophaga viridijasciata Caudell, Ent, News, XVI, p. 217. [Kev 

 West and Palm Beach, Fla.] 



