74 STUDIES IN NORTH AMERICAN MEMBRACID.E 



Tribe Smiliini Goding. 



Corium destitute of a transverse veinlet between the two in- 

 terior longitudinal veins; pronotnm strongly compressed 

 and elevated, highest over the humeri, its front line 

 vertical or nearly so, i, Smilia Germ. 



Corium with a transverse veinlet between the two interior 

 longitudinal veins, i. 



i. Pronotum strongly compressed-elevated, or at least with a 

 distinct crest posteriorly, 2. 



-. Pronotum regularly transversely rounded on the dorsum, 

 not at all compressed, 4, Ophiderma Fairm 



2. Pronotum strongly elevated and compressed, humeral 

 angles greatly produced, 2, Antianthe Fowler. 



-. Humeral angles not greatly produced, the dorsum some- 

 times strongly compressed and elevated, but generally 

 moderately elevated and highest at about the middle, 



3, Cyrtolobus Godg. 



Genus Smilia Germar. 



Readily distinguished from our other genera of the 

 Smiliini by the absence of a transverse nervure between the 

 two inner longitudinal nervures of the corium. Our two spe- 

 cies may be separated as follows: 



Anterior line of the crest vertical or nearly so; oblique vitta 

 linear, distinctly narrower than the space between it and 

 the hind margin of the crest, 1, camelus Fabr. 



Anterior line of the crest sloping backward and rounding over 

 above the metopidium; oblique vitta distinctly broader 

 than the space between it and the hind margin of the 

 crest, 2, fasciata A. & S. 



1. Smilia camelus Fabricius. 



So far as I can make out this is the only described species 

 of this genus that is typical. This assumes that guttata Fitch 

 and viridis Godg. are simple varieties of camelus. I cannot 

 accept Coding's synonomy of this species. Membracis centralis 



