1 '.)!()] American Species of Platymetopiiis 227 



The aspect of these two species and the next shows a greater 

 difference than is sustained by their structural characters and 

 it is possible, but I hardly think likely, that material from inter- 

 mediate localities may necessitate merging them in one. The 

 smaller nanus has thus far been found only in the island of 

 Jamaica. 



18. Platymetopius irroratus n. sp. 



Differs from loricatiis in being paler in color and generally 

 smaller and in having the hind edge of the last ventral segment of 

 the female distinctly angled either side and the plates of the male 

 proportionately shorter but equally acute at apex leaving the 

 margins more deeply arcuated. In this form the face is always 

 more or less irrorated with brown or fuscous or at times entirely 

 pale brown irrorated with pale. In the paler individuals the 

 facial irrorations are always more dense toward its angled base 

 where the pale line is distinct. The vertex is somwehat shorter 

 than in loricatiis and the elytra are cinereous instead of almost 

 black as in that species. It is close to hrevis but may be dis- 

 tinguished by the longer vertex which is darkened at apex and 

 marked with four while dashes as in loricatiis. The genital 

 characters are also quite different from brevis. Length 4 mm. 



Dr. Ball has sent me a long series of this species taken at 

 Chino, Riverside, Pasadena and vSan Diego, California, Phoenix, 

 Arizona, and Ti Juana, Mexico. 



19. Platymetopius verecundus n. sp. 

 Allied to irroratus and obscurus but with a longer vertex 

 than in either. Length 3 1-2 to 4 mm. 



Vertex about as in oregonensis, much produced and acute but dis- 

 tinctly shorter than in slosso)ii; in the female about twice as long as wide 

 between the eyes. Clypeus much constricted near the base with its 

 apex produced and rounded as in the allied species. Hind margin of 

 the last ventral segment of the female distinctly angled and slightly 

 produced at the middle and more obscurely angled on either side. 

 Last ventral segment of the male subangularly emarginate; valve large, 

 scarcely angled at apex; plates as in loricatiis, a little longer than in 

 irroratus and smaller than in scriptus and obscurus. 



Color fulyous-brown with rather strong ornamentation. Vertex 

 marked as in the allied species, the pale apical line more developed; 

 transverse pale vitta sometimes almost entire or broken only by the 

 fulvous median stripe and a brown line near it on either side, or there 

 may be a second interrupting line exteriorly; base with a white median 

 vitta bisected by a fuscous longitudinal line and sometimes tenninated 

 outwardly by a similar line. Pale vittas of the pronotum distinct. 



