1910] American Species of Platymetopius 225 



14. Platymetopius frontalis Van Duzee. 

 Can. Ent. xxii, p. 112, 1890. 



Common and widely distributed throughout ix great part of 

 the United States and Canada. This species may be distin- 

 guished by its stout form, short vertex and blackish color both 

 above and below, with a clear yellow face which becomes infus- 

 cated at each side but scarcely at the pointed base where the 

 angled lines are but poorly distinguished. The vertex has a 

 white median dash at apex and a transverse vitta of similar 

 marks across the disk before the eyes, more or less conspicuous. 

 The pronotum sometimes shows faint traces of the five pale 

 vittae and there may be some white marks on the scutellum 

 forming two broken longitudinal vittae. Elytral areoles with pale 

 reticulations about their margins, sometimes nearly obsolete 

 in the males; round areolar spots well developed and conspic- 

 uous; costa white, the oblique veinlets heavy; apical areoles 

 generally infuscated beyond the white basal dots, the extreme 

 edge clear white. Male genital characters about as in fulviis; 

 the valve broader and more rounded and the plates a little 

 shorter; last ventral segment of the female short and broadly 

 rounded on the apical margin. Dr. Ball has sent me for 

 inspection a typical example oi front (ilis taken by Prof. Gillette 

 in Mexico. 



1."). Platymetopius nasutus Van Duzee. 

 Bui. But". Soc. Nat. Sci. viii, No. 5, p. 04, 1907. 



While very close to frontalis I believe this a sufficiently dis- 

 tinct species. The vertex is obviously longer and more pointed 

 and there is much more white in the coloring of the upper sur- 

 face. The vertex is mostly white with the apex and a trans- 

 verse eroded vitta ?jlack, the former with a median line and two 

 oblique dashes white; the pale basal portion is veined with 

 fuscous and the white median area is crossed by a black longi- 

 tudinal line either side of the middle; the pronotum is irrorated 

 with white and fuscous with the anterior margin and depressed 

 sides mostly white and the longitudinal vittas scarcely indi- 

 cated. The elytra are white with a few fulvous-brown areas in 

 the areoles and with fuscous reticulations more or less extended, 

 the white areolar spots being much obscured. Beneath black 

 with the tibiae and tarsi white, dotted with black; the femora 

 sometines largely invaded with white. 



