NATURAL SCIENCES OF PHILADELPHIA. 23 



the margin narrowly, and a broad fascia behind the middle, black ; 

 under side as in O. atra. L. .21-.24, Canada, Hudson's Bay, 

 Lake Superior. 



Black varieties of this species also occur. 



3. 0. luctuosa, Lac, Mon. i. p. 72, 73. 



Black, thorax red, with a very large spot black, tolerably 

 narrowed behind, margins thickly, disk vaguely punctate, elytra 

 closely punctate, finely transversely rugose. L. 3^ iin. Oregon 

 (Reiche). This species I have not seen. 



Zeugophora (Kunze), (Taraxis, Lee). 



1. Z. scutellaris, SufFr. Lac, Mon. i. 236, 1. 



Black, head, thorax, scutellnm, legs, pro- and meso-sternum 

 clear, testaceous yellow ; antennoe with the first joint yellow, 

 2-3 yellowish; scarcely pubescent, coarsely punctate. L. .L5. 

 Illinois (Leconte). 



2. Z. abnormis (Lee), Lake Sup., p. 237. 



Rather elongate, very sparsely pubescent, coarsely punctate ; 

 thorax with the lateral spine obtusely rounded, short, black; 

 antenna?, parts of the mouth, and legs red; epipleuraj of thorax 

 and el,ytra pitchy. L. .16. Lake Superior, Oregon. More elon- 

 gate than the other species; fifth joint of antennte larger than the 

 sixth. A variety entirely rufous also occurs. 



3. Z. puberula, sp- n. 



Allied to Z. acutellaris^ but with short antennre and thickly 

 pubescent surface; the lateral spine is well marked, triangular, 

 the color is dark ferrugineous, the meta-sternum, abdomen, and 

 joints, 5-11 of the antenuiB being black. L. .14. Illinois (Leconte). 



4. Z, varians, sp. n. 



Very sparingl 3^ pubescent, shining; front of head antennae, legs, 

 and pro-sternum pale ferrugineous; thorax ferrugineous, spine ob- 

 tuse, disk on each side with a broad black patch; elytra pitchy- 

 black, with a common discoidal patch, and the sutural margin 

 ferrugineous. L. .13. Illinois, Kansas, Pennsylvania. 



5. Z. consanguinea, sp. n. 



\erylike Z. variant, hwi longer, more deeph' colored, thorax 

 entirely red, elytra entirely black. L. .14. Illinois. Easily di.s- 

 tinguished l)y the elongate form. 



