AMERICAN COLEOPTERA. 375 



The typical specimen has a very fine obsolete punctuation, but this 

 is abnormal; it may be known, however, by the black epimcra. 



A. subvittata, Muls. Trim., 138, 2. 



The type of this species is in very bad condition ; it has the elytra 

 broadly dilated at the sides and the markings are confused; a speci- 

 men I saw in Mr. Ulke's cabinet showed the sutural patch of pubes- 

 cence ; the punctuation is extremely fine. 



MYSIA, Muls. 

 Very close to Anatis, but the presternum is not compressed, and the 

 metasternum is distinctly margined in front, the mesosternum is 

 slightly sinuate, and the elytral epipleurae reach the apex, the meta- 

 coxal lines are obliterate externally. 



M. pnllata, (Say), J. Acad, v., 301, 1; -notans, Rand. Bost. J. ii., 49. 26.— 

 Oval, tolerably convex, black; head witb two frontal spots yellow; thorax 

 with front margins narrowly, sides broadly white (these enclosing a black 

 dot), finely and obsoletely punctulate; elytra more visibly punctulate, entirely 

 reddish, or with irregular dorsal black ill-defined vitta; legs generally black, 

 meso-epimera white. L. -2S inch. 



Lake Superior, Middle and Southern States. 



M. llornii, sp. n. — Very like M. pullata, but rather broader, entirely tes- 

 taceous red; sides of thorax broadly whitish; thorax extremely minute, elytra 

 very finely punctulate, both finely alutaceous; meso-epimera white. L. -2S 

 inch. 



Oregon. (Horn.) The anterior tibise are distinctly grooved 

 throughout on their external face. 



PSYLLOBORA, Chevr. 

 Thorax with the sides broadly concave and diaphanous, anterior 

 margin hardly sinuate; scutellurn very small, mesosternum and cen- 

 tral process margined, elytral epipleurae continuous to apex, antennae 

 long, club lax, elytral punctuation coarse, uniform, anterior tibiae not 

 sulcate. 



P. 20-macnlata, (Say,) J. Acad, iv., 96, 9. — Rounded, ochreous-white, 

 thorax with five black spots, two anterior, three basal; elytra with three spots 

 near the suture (one sub-seutellar, one before and one behind the middle), four 

 spots along the margin (one on the callus, one immediately before, one behind 

 the middle and one sub apical), also a large irregular discoidal mark, often 

 confluent with the four dots round it; the sub-apical spot is also sometimes 

 double; sternum and middle of ventral segments black, epimera and part of 

 meta-episternum white. L. '3 — -10 inch. 

 Atlantic region. 



