1854.] 115 



thoraee subvittato, elytris vittis tribus alro-holosericeis, figuraque communi 

 sinuata, postice duplicata et rotundata omatis ; antennarum articulo ultimo ro- 

 tundato. Long. 33. 



Lake Superior, one specimen. This species is also similar in form to the two 

 preceding, but the figure on the elytra instead of being truncate posteriorly, is 

 rounded, and double, so as to form at the posterior pari of the usual figure a 

 lunate figure, concave anteriorly. The palpi unfortunately cannot be seen. 



5. B. e x i m i u s, ovalis : utrinque subacutus, convexus, niger, olivaceo- pu- 

 bescens, thoraee cinereo variegato, elytris atro-cinereoque subtessela'is, figura 

 transversa communi sinuata postice duplicata, maculaque suturali maioie ad 

 medium ornalis, tarsis antennisque rulo-piceis, his articulo ultimo subaeumi< 

 nato. Long. *22. 



Le Conte, Agassiz' Lake Superior, 224. 



One specimen, from the Northern shore of Lake Superior. The larger sutu- 

 ral cinereous spot at the anterior margin of the dorsal figure will enable this 

 beautiful species to be readily recognized. The palpi cannot be seen. 



6. B. murinus, breviter ovatus, convexus, niger, pubescens, et breviter 

 setosus, elytris nigro-vittatis, vittis subelevatis, punctis cinereis figuram com- 

 munem transversam postice duplicatam omatis ; antennarum articulo ulti- 

 mo rotundato, palpis maxillaribus' articulo ultimo ovato, truncato. Long. 

 172. 



Fabr. Syst. El. 1, 104. Steffahny, Germ. Zeitschr. 4, 24. 



Byrrhus undatua Melsheimer, Proc. Acad. Nat. Sc. 2, 117. 



Byrrhus glabellas Melsheimer, Proc. Acad. Nat. Sc. 2, 118. (specimen de- 

 tritum.) 



Pennsylvania, rare : the American synonyms "were unnecessary, as no differ- 

 ence has yt-t been pointed out between native and European specimens. Com- 

 petent European entomo ogistshave pronounced them identical, and their opinion 

 should be received, until some tangible character can be found for their separa- 

 tion. The European synonyms are omitted ; they may be found in Erichson, 

 Ins. Deutschl. (p. 488). 



7. B. co n col or Kirby, Fauna Bor. Am. 117. Unknown to me. 



Cvtilus Er. 



1. C. varius, subovatus, antice subacutus, convexus, aeneus, vel viridi- 

 aeneus, pubescens, elytris striatis, interstitiis alternis virescentibus subelevatis, 

 nigro-tessellatis. Long. 2. 



Erichson,. Ins. Deutschl. 400. 



Byrrhus varius Fabr. Syst. El. 1, 103; Kirby, Fauna Bor. Am. 118; Stef- 

 fahny, Germ. Zeitschr. 4, 28. 



Byrrhus trivittatus Melsheimer, Proc. Acad. Nat. Sc. 2, 117. 



Very abundant through Northern New York, in Maine, and at Lake Superior. 

 The following variations in color may be observed : 



a. Thorax with a large patch of golden hair at the middle of the base ; scutel 

 covered with grayish hair. 



b. Thorax and scutel as above; margin of the elytra and feet reddish- brown, 

 c Golden hair of the thorax and gray hair of the scutellum less conspicuous; 



elytra uniformly dull bronze color, with the alternate interstitial spaces tesst late 

 with black. 



Var. a is most abundant, and is the one named by Dr. Melsheimer; to var. c 

 may probably be referred Byrrhus alternatus Say, Journ. Acad. Nat. Sc. 5, 186. 



Pedilophorl*s Steffahny. {Morychus Er.) 



1. P. ac u m i n at u s, apterus longiusculus, ovalis, antice subacutus, con- 

 vexus supra aeneus, nitidus, subtiliter cinereo-pubescens, thoraee subtiliter, 

 elytris distinctius punctatis, subtus nigro-piceus, punctatus, griseo-pubescens, 

 tarsis articulo 3io longe lobato. Long. 18. 



Morychus acuminatus Mannerheim, Bull. Mosc. 1852, 341. 



