THE CANADIAN ENTOMOLOGIST. 12^ 



coalesce with the outer dots when the whole appears as a pair 

 of stripes, in which case the crescent and dash fuse to form a ques- 

 tion mark. Pronotum milky, with four broad, mottled, dark 

 brown stripes, the outer pair definite and touching the inner angle 

 of the eye, the innej pair irregular and often fading otit posteriorly. 

 Elytra milky with the most of the nervures and a few coarse reticul- 

 ations as in costomacnlatiis almost black 



Genitalia: Female segment short, posterior margin slightly 

 indented in the middle, pygofers extremely long and almost parallel 

 margined. Male valve triangular, plates together equilaterally 

 triangular. 



Described from four females and four males from St. George, 

 Utah, and Mojave, California, collected by the writer. This 

 species is quite puzzling in character; in elytral characters it is 

 close to costomaculatus, but differs radically in the extremely wide 

 head. In size it is unique in the genus, but in Deltocephalus 

 where the occasional second cross nervure would, if considered, 

 place it, it would seem at home. It is, however, unquestionably 

 related to the other forms mentioned. The white markings in 

 the black spots are a striking and very distinctive character. 



Phlepsius stellaris, n. sp. 



Larger and stouter than loculatiis, which it resembles in form 

 and structure, resembling denudatus in the light colour and lack of 

 reticulations. Creamy white, with two star-like spots on \ertex. 

 Length: 9 4 mm. 



Head broad as in loculatiis, vertex shorter and broader, obtusely 

 rounding, scarcely longer on middle than against the eye, two- 

 thirds the length of the pronotum. Front shorter than in loculatus, 

 forming a wider angle with vertex. Elytra long, narrow, venatiorL 

 as in costomaculatus, but obscure. 



Colour creamy white, the ocelli and four equidistant spots 

 on vertex margin between these dark, a pair of irregular star- 

 shaped spots on the anterior disc of the vertex, one ray pf each 

 star, including the outer marginal spot, on eit/ier side and another 

 touching the eye; a spot on either side of scutellum at base, ex- 

 tending forward under the semi transparent pronotum, and often 

 a dot or two behind the eyes. Elytra creamy, the nervures showing 



