AMERICAN COLEOPTERA. 121 



margins somewhat cupreous by transmitted light. Elytra wider than the thorax, 

 broadest behind the middle, surface moderately deeply striate, the striae finely 

 punctured, intervals distinctly convex, very sparsely punctulate, the second 

 interval with coarse punctures which extend from the base a little beyond the 

 middle; a very distinct tuberosity at the apical termination of the third and 

 fourth intervals. Pygidium green with golden lustre, sparsely punctulate. Body 

 beneath fimbriate with pale hairs. Metasternum and posterior coxae greenish 

 with cupreous lustre. Abdomen very sparsely punctate with more evident cupreous 

 lustre. Femora green, tibiae more cupreous. Tarsi piceous with aeneous surface. 

 Length .80— .90 inch; 20—23 mm. 



Specimens have been observed with the surface more or less suffused 

 with cupreous, these seem rather immature than true varieties. 



This species is closely related to P. Lacordairei Bouc, (Proc. Zool. 

 Soc. London, 1875, p. 122, pi. xxiii, fig. 4), but differs in important 

 characters. M. Aug. Salle has kindly made comparisons for me and I 

 repeat his words : " It is an entirely new species very different from all 

 those described and the smallest of all, the under side is cupreous while 

 in Lacordairei it is silvery, the thorax is more arcuate and the lateral 

 border more dilated, the striae of the elytra are deeper and the punctures 

 in them larger and deeper, finally the green color is deeper and the legs 

 more red." 



The first specimen examined was from Tucson, Arizona, in the 

 cabinet of Mr. H. Edwards, a second in the cabinet of Dr. LeConte 

 was collected by Prof. Snow in New Mexico. I he series in my cabinet 

 came from near Prescott, Arizona. 



I dedicate this species to a friend. 



FOLY9KECHUS Lee. 

 Clypeus somewhat trilobed, the middle lobe bidentate, separated from the front 

 by an elevated carina which is broadly interrupted at middle. Labrum trans- 

 verse, slightly prolonged at middle, carinate above and densely ciliate. Mandibles 

 pyramidal, the outer edge not toothed, the tip turned upward. Maxillae stout at 

 base, the inner lobe small, the inner edge double with three small teeth on each 

 edge and with long cilia?, the tip acute; palpi moderate in length, the last joint 

 elongate-oval and equal to all the others. Mentum narrow, the base suddenly 

 broader, above the base gradually wider to middle then narrowed to the apex 

 which is slightly emarginate; sides of mentum with long ciliae, under surface 

 with short hairs. Ligula triangular in great part concealed behind the mentum, 

 densely ciliate at tip; palpi short, three-jointed, the second joint very small, the 

 terminal longer than the other two combined. Eyes large convex, larger in the 

 male, deeply emarginate by the sides of the front. Antennae ten-jointed, chib 

 three-jointed as long as the stem in the female, one-half lunger in the male. Legs 

 short, stout, tibiae not longer than the femora, tarsi as long or longer than the tibiae. 

 Tarsal claws dissimilar in the sexes, those of the female simple feebly arcuate and 

 alike on all the feet, those of the male as follows: front leg— anterior claw a little 

 stouter than the other with a, trace of a tooth at middle, posterior claw simple; 

 middle leg— anterior or outer spur deeply divided, the lower division forming 



TKANS. AMEU. ENT. SOC. X. (.'11) AUGUST, 1882. 



