40 PROCEEDINGS OF THE ACADEMY OF 



Many intermediate forms occur, especially one "with the thorax 

 and scutellar region red, the rest black. 



2. p. aterrima (Oliv.), Enc. Metli., 6, 913. 



Extremely like the preceding, and similarly' variable, but the 

 head is much less punctate, thorax less punctate and minutely 

 alutaceous. L. .12-.lfi. 



The dark varieties seem more common than the pale ones in this 

 species. P. opacicollis, Lee, seems to be a small pale specimen 

 with unusually ojDaque thorax. 



3. P. laevicollis, !=p. n. 



Also extremely like P. 6-notafa, but head and thorax scarcely 

 visibly and very sparingly punctulate ; elytra with two spots, one 

 basal and one larger medial. L. .15. Pennsylvania, AViscousin. 



4. P. pumila, Lee. Col. Trans., p. 23. 



Entirely 3'ellowisli-red, shape of P. Q-nofafa, but much smaller; 

 thorax smooth, elytra oI)soletel_y seriate punctate, the punctures 

 coarse but very sparse ; ocular grooves produced in front so as to 

 meet on the front above the clypeus. L. .10. Kansas (Leconte). 



5. P. viridicyanea, sp u. 



Bluish-green (or rarely aeneous) ; antennae red, club infuscate; 

 bend foveolate, ocular sulci deep ; second joint of antennae dis- 

 tinctly shorter than third ; thorax alutaceous, sparingl}^ punctate 

 subquadrate, narrow in front, anterior angles deflexed, sides near- 

 ly straight; elytra punctate, striate, smooth. L. .30. Middle 

 and Southern States, Illinois, Mexico. 



This si)ccies is a little anomalous, but the ocular sulci and 

 thoracic lobes clearly belong here. 



Metaparia, g. n. 



Head broad, antennae distant, eyes emarginate, not bordered 

 hy a groove ; deeply inserted in the thorax which is not lobed be- 

 liind the eyes ; antennae with joints 2-4 equal, claws ap[)endiculate, 

 tibijt dentate at tip. 



1. M. clytroides, sp. n. 



Oblong, parallel, green, antennae and legs red; surface alutaceous; 

 head very sparingly and obsoletely punctulate, front impressed, 

 vertical ; thorax transverse, produced in front over the head, sides 



