32 THE CANADIAN ENTOMOLOGIST, 



the veins, without supernumerary transverse veins. Commissural and 

 apical costal margins each with two larger dark spots. Femora more or 

 less completely heavily triannulate with dark, the fore and middle tibiee 

 more or less completely quadriannulate ; hind tibicX with large dots at 

 bases of spines and tip, black. 



Last ventral segment once and a half times as long as preceding, 

 hind margin black and slightly sinuate, hind angles narrowly, somewhat 

 acutely, produced nearly a third the length of the segment. 



(J more slender. Length 7 mm. Plate short, broadly triangular. 

 Valves short, each about as broad as long, outer edge obtusely angled be- 

 low, tips bluntly rounded, far exceeding the extremely short pygofers. 



Described from several specimens in the National Museum collec- 

 tion, from Texas. This species is very distinct from any described North 

 American- form. It resembles ptmctiscriptus somewhat, but differs in 

 structure of head, genitalia of both $ and $ , and in markings. 



Phlepsius Rileyi, n. sp. 



5 . — Length 7.5 mm. Nearest texajius. Head slightly broader 

 than pronotum. Vertex rather strongly angularly produced, length little 

 less than one-half of the width between the eyes, or about one-half the 

 length of the pronotum ; surface sloping, slightly transversely depressed, 

 meeting the front in a very obtuse angle, edge not at all compressed. 

 Front somewhat less than a third longer than wide, sides evenly curved 

 from vertex to clypeus, not at all bent opposite the antennpe. Clypeus 

 slightly enlarged towards the truncate tip ; length once and three-fourths 

 the width at tip. Width of pronotum nearly twice the length ; surface 

 sparsely punctured. 



Colour pale fulvous. Markings as in iexanus, except paler and more 

 uniform on vertex, and no indications of a band on the pronotum ; the 

 whole insect of a more distinctly fulvous cast. 



Last ventral segment twice the length of the preceding, entire hind 

 margin in two large evenly rounded lobes, the notch between them V- 

 shaped. 



Described from material in the National Museum, collected in Texas. 

 This species has no relative nearer than the iexanus, from which it differs 

 in proportions of head and pronotum and in the genitalia. The genitalia 

 of the female resemble somewhat those of incisus, but that species differs 

 widely in form and coloration. Named after Dr. Riley, in whose collec- 

 tion it first occurred. 



