R.UTELIN.E 27 



punctulate; sublateral dark spot evident; scutellum rather closely 

 and more strongly, subrugosely punctate, with sharply limited smooth 

 margins; elytra subcircularly rounded apically from slightly behind 

 the middle, a fourth longer than wide, with slightly uneven and scarcely 

 at all impressed series of very moderate punctures, which become 

 close and confused at the sides, stronger and broadly confused along 

 the second interval, the three costuliform intervals but feebly convex; 

 pygidium with well separated and very feeble transversely wavy 

 scratches; anterior tarsi missing in the type. Length (cf ) 9-3 mm.; 

 width 5.0 mm. Arizona delicata n. sp. 



II Form strongly cuneiform, a blackish sutural vitta bifurcating and 

 surrounding the scutellum, which, like the head and pronotum, is 

 pale testaceous. Elytra, excepting a very narrow equal sutural line, 

 and entire under surface and legs pale brownish-flavate, not at all 

 darker externally or at the humeral callus; head (9) large, three- 

 fifths as wide as the prothorax, with large prominent eyes, separated 

 by barely twice their width, the front and clypeus densely punctato- 

 rugose, the latter more than twice as wide as long, almost semi- 

 elliptical, the surface feebly, indefinitely impressed at each side 

 and rather narrowly but abruptly reflexed throughout the contour; 

 antennal club rather long and thin, a little shorter than the stem; 

 prothorax three-fourths wider than long, feebly trapezoidal, the 

 sides slightly swollen medially, the apical sinus shallow, the angles 

 sharp; basal bead rather narrow, flat, entire and not at all depressed; 

 surface minutely, remotely punctulate, broadly flavate with included 

 small dark spot at each side; scutellum finely, remotely punctate; 

 elytra slightly elongate, gradually broadening from the base, very 

 rapidly transversely rounded at apex; surface with rather irregular 

 and wholly unimpressed series of very fine feeble punctures, the 

 second interval with the punctures slightly more distinct, narrowly 

 confused along the median line, becoming broadly so throughout its 

 width basally; pygidium with rather small but strong sparse punc- 

 tures; larger anterior tarsal claw (9) very slender, with the apex 

 extremely unequally split, the upper ramus rather thick and much 

 prolonged, the lower very fine and aciculate and not half as long as 

 the upper ramus. Length (9 ) n.o mm.; width 6.0 mm. Mexico. 

 A single example received under the name hopfneri Bates, which it 

 evidently is not, as can be seen from the form of the inner anterior 

 tarsal claw *digressa n. sp. 



Form not or but slightly cuneiform, the darker sutural stripe when 

 present never enveloping the scutellum 12 



12 Clypeus rather strongly narrowed to the apex; body unusually 

 small in size. Elongate-oval, pale testaceous; prothorax with a 

 median darker space, which extends laterally on each side at the 

 middle as a narrow line not quite to the side margin; head rather 

 coarsely punctate, the eyes not prominent; antennal club as long 

 as the stem; clypeus rounded and reflexed at apex, the sides scarcely 

 reflexed, the suture straight, distinctly impressed; prothorax at base 

 twice as wide as long, the sides feebly arcuate, obliquely narrowing 

 apically, parallel basally ; anterior angles acute, the posterior rounded ; 



