220 AfiiKils 1'lutomolooical Society oj America [\o\. III. 



irroratc with testaceous forming a longitudinal line next each eye and 

 another midway between that and the median sulcus; a line at apex, 

 an oblique mark either side of this and four marks on the basal margin 

 white bordered with piceous black. Pronotum fulvous-brown, closely, 

 eonfluently irrorate with testaceous-white and showing five whitish 

 longitudinal vittoc more or less conspicuous. Scutellum fulvous with 

 four sjjots on the anterior field and the three angles of the jiosterior 

 field whitish, outlined in black, the disk of the anterior field sometimes 

 variegated with pale. Elytra white, rather closely inscribed with fulvous 

 brown; ncrvurcs darker brown; costal area white crossed by nine or len 

 heavy oblique veinlcts; round areolar white sjjots most conspicuous in the 

 apex of the anteapical areoles, the base of the ajjical, ancl near the tip 

 of the claval. Face light yellow, abruptly shading to fuscous on the 

 base of the front and outer half of the cheeks, the former marked with a 

 white angled line and a more slender one follows close under the anterior 

 edge of the vertex; the lower continued as a longitudinal line behind the 

 eyes. Beneath and legs deep black, more or less varied with whiti.sh, 

 the tibiic white dotted with black at the base of the white spines. Geni- 

 tal characters. Male: Last ventral segment short, broadly and very 

 obtusely excavated. Valve large obtusely triangular, apex rounded. 

 Plates triangular, exceeding the valve by about its own length, their 

 sides rectilinear or more generally slightly convexly arcuated to an obtuse 

 apex, sometimes a little concave with their ai)cx subacute; closely 

 fringed with stiff bristles. Pygofers narrow, distinctly exceeding the- 

 ])lates. Female: Last ventral segment scarcely longer than one half 

 its basal width, moderately compressed suggesting a median carina; 

 viewed from directly below the hind margin is broadly rounded: ovi- 

 duct .scarcel>- exceeding the pygofers. Length about 3 mm. 



Toward the north and west this species varies to a lighter 

 almost fulvous color with little if any black beneath, the face is 

 paler, scarcely shading to darker on the sides of the cheeks, and 

 the vertex is more strongly produced, at least one half longer 

 than broad between the eyes. I call this variety dubius ta 

 distinguish it from the typical form with which it is connected 

 by almost insensible gradations. It in turn forms a connect- 

 ing link with oregonensis, which how^ever I believe to be a dis- 

 tinct species. I have listed this species as latiis in Canadian 

 Entomologist, xl. ]). lo7, 1908. 



(1. Platymetopius oregonensis Baker. 

 Can. Ent. .\xxii, p. 4!», HXM). 



This species was described from two males from Oregon but 

 Dr. Howard has sent to me from the Baker collection one male 

 and one female marked as types. These agree in every par- 

 ticular with material in Dr. Ball's collection and my own from 

 California, Utah, Colorado and New Mexico. In the male the 



