472 REVISION OF THE ELATERID.E 



Lake Superior. It is difficult to determine whether this should not be considered as E. 

 semicinctus Randall (B. Journ. Nat. Hist. 2, 10;) but the expression " body consider- 

 ably dilated,'' coupled with the observation that "it seems most nearly allied to E. d i s - 

 coideus," has induced me to refer Randall's description to No. 8 of this genus, above 

 described. The thorax in this species is less narrowed in front than usual ; the elytra 

 are also parallel beyond the middle, then gradually narrowed to the tip. 



36. E. stigmosus, elongatus, ater cinereo-pubescens, thorace latitudine longiore, antrorsum 

 subangustato, lateribus antice subrotundatis, sat dense punctato, postice obsolete canaliculato, elytris 

 macula hamata basali, humeruni includente, alteraque utrinque transversa pone medium flavis: striis 

 punctulatis interstitiis planis, rugose punctatis, pedibus antennarumque basi testaceis, his articulis 2 

 et 3 aequalibus. Long. -21 — -25. 



Lake Superior, two specimens. A very distinct and pretty species; the yellow spots 

 of the elytra are arranged in the following manner: a line from the middle of the base 

 follows along the fourth interstice for one-third the length of the elytra; it there meets a 

 broader line running obliquely inwards from below the humerus, and slightly dilated along 

 the margin; the posterior spot is small, and situated one-third the entire length of the 

 elytra from the apex; in the second specimen the hook formed by the junction of the two 

 anterior lines is imperfect, and the posterior spot is larger, becoming almost round; the 

 tibia? and tarsi are much paler than the femora. The second and third joints of the an- 

 tennae together are not longer than the fourth. 



37. E. rufilabris, elongatus, linearis, nigro-piceus fuscopubescens, thorace latitudine fere ses- 

 qui longiore, antice vix angustato, ad apicem paulo rotundato, punctato, basi lutea, elytris basi an- 

 guste luteis, striis punctulatis, interstitiis confertim punctatis, pedibus flavo-testaceis, antennis elon- 

 gatis piceis, basi testaceis, articulis 2 et 3 requalibus 4 t0 coniunctis brcvioribus. Long. "25 — '32. 



Germ. Ins. Nov. 47. 



Ampedus rufilabris Germ. Zeitschr. 5, 160. 



Middle and Southern States. The head is larger than usual, although there is not a 

 great deal of difference in form between this and the two preceding species; this is, how- 

 ever, narrower and more parallel. The outline of the front is more rounded than usual, 

 and the margin is slightly reflexed. 



Blauta Lcc. 



Frons convcxiuscula, paulo producta, margine rotundata, non impressa; labrum antice rotundatum; 

 antennas serratse, ll-articulatse, articulo l mo mediocri, 2 et 3 parvis, hoc sesqui maiore, 11"'" subcon- 

 stricto: prosternum antice lobatum, mucrone postico leviter inflexo, sutura obliqua, subconcava, usque 

 ad medium valde exarata; mesosternum non protuberans; coxae postic;>? laminis intus sensim et mo- 

 dice dilatatis, margine bisinuato, dentc interno magno, acuto: tarsi pubescentes, articulo 1'"° sequen- 

 tibus duobus sequali, 2 — 4 sensim brcvioribus, subtus breviter lobatis et spongiosis: 5'° primo requali, 

 unguiculis simplicibus. 



A curious, subcylindrical insect, which I am very much disposed to consider Ampedus 

 cribrarius Germ. (Zeitschr. 5, 178;) but as it has the thorax a little longer than wide, and 

 the antennae very distinctly serrate, it is more proper to retain it as distinct from that spe- 



