L'2() Ainia.s Juilonwloi^icdl .Society of Amrricd [X'ol. Ill, 



In this species the face while mostly yellow shows a strong 

 tendency to a uniform fuscous irroration which becomes more 

 conspicuous laterally (thus forming a connecting link with the 

 group of brown-faced species), and the angled base may also be 

 darkened, with a transverse crescentic white mark. The male 

 plates are proportionately a little larger and more obtuse at apex 

 than in frontalis and the last ventral segment of the female is 

 shorter and more angled. The types of this species were from 

 Jamaica and Colorado and I have seen others from California. 



l(i. Platymetopius loricatus Van Duzce. 



Bui. Bui. Sue. .\al. Sri., v., p. 2U."), IS'U. 



Alhed to nasiitHs but sometimes smaller and showing strong 

 indications of the frontal irrorations found in JHscifrons. Face 

 in tyi)ical examples entirely pale yellow. Vertex shorter than in 

 uasHtHS ])ut longer than in frontalis; its markings substantially 

 as in frontalis but here the white vitta consists in great part of 

 two longer apjjroximate and dislocated white dashes and a few 

 minute irrorations. the base with two median white dashes. 

 Pronotum with the five pale vitta? fairly distinct. Elytra 

 mostly blackish as in frontalis luit with the white areolar spots 

 smaller and fewer anteriorly. Face frequently showing strong 

 indications of fuscous irrorations, especially toward the base 

 of the front where there is then a short angled white mark. 

 Last ventral segment of the female short, its hind margin 

 hardly angled at the middle, the lateral angles rounded. \"alve 

 of the male short and rounded or very feebly angled; the plates 

 broadly but acutely triangular, scarcely longer on their suture 

 than the valve; slightly exceeded l)y the pygofers. Described 

 from California but I have seen others from Colorado, Florida, 

 Orizaba, Mexico, and Cmalan, Guatemala. 



17. Platymetopius nanus \';m Duzce. 

 Bui. But". S(.c. .Nat. Sci , viii, No. 5, p. 05, 1907. 



Very close to loricatus but the colors are i)aler with the white 

 elytral spots less distinct, the pleura are yellow with a brown 

 cloud anteriorly, not black as in loricatus, and the vertex is a 

 little shorter but similarly marked. The last ventral segment of 

 the female is more ])roduced. In the male the last ventral seg- 

 ment is subangularly excavated behind ; the i:)lates also are larger 

 and white, sur])assing the apex of the pygofers which is not the 

 case in loricatus. 



