304 [JUNE, 
Lampyris ruficollis Say, Journ. Ac. Nat. Sc. 5, 162. 
Elodes fragilis Ziegler, Proc. Ac. Nat. Sc. 2, 269. 
Llodes marginicollis Guérin, Spec. et Icon. An. Art. No. 9, p. 3. 
Middle and Southern States: two specimens from Missouri Territory have the 
feet entirely rufous, but otherwise do not differ. One specimen with entirely 
black thorax was found by me in Georgia; I am strongly inclined to believe 
that this last variety is H. oblonga Guérin, which, however, is said to have the 
3d joint ef the antennz less than half the size of the second. Where both the 
second and third joints are small, it is difficult to determine their relative pro- 
portions, and on this account too great reliance should not be placed on the cha- 
racters given by Guérin in his division of the genus into groups. 
It is certain that this insect must be Say’s Lamp. rujficollis, as we have no 
ether that will agree with his description; from H. collaris and bicolor it differs 
in having the thorax always slightly dusky in front; Say’s observation that the 
species has not the power of giving light, added to the fact that the thorax is not 
produced over the head, peint conclusively to the present genus. 
4. H. pallipes, oblongo-ovalis, atra nitida fere hispido-pubescens, thorace 
parvo, vix punctulato, elytris minus dense punctatis, obsolete sat distincte tri- 
costatis, pedibus, antennisque flavis, his articulis 2 et 3 coniunctis 4to vix bre- 
vioribus. Long. :11. 
Common in the Southern States, and occasionally found at New York. This 
species is very distinct from those of the following division, which it resembles 
in ferm; I cannot, therefere, consider itas H. coaretata Guérin. The third 
jeint of the antenne is thinner, but not shorter than the second; the sides of the 
thorax are rounded and very finely margined. 
Ce 
5. H. fuseiceps, oblongo-ovalis, nigre-picea, dense hispide pubescens, 
antennarum basi, pedibus, thorace elytrisque pallidioribus, his dense punctatis, 
minime costatis, thorace subtiliter punctulato, lateribus subtiliter marginato, 
antennarum articulis 2 et 3 contunctis 4to jongioribus. Long. *12. 
Guerin, Spec. et [con. An. Art. No. 9, p. 15. 
Cyphon fusciceps Kirby, Fauna Bor. Am. 245. 
One specimen from Lake Superior and another from New York. Body above 
luteo-testaceous, tolerably densely clethed with suberect grayish hair. Head 
nearly black, densely punctulate; antennz black, four basal joints testaceous, 
2d joint equal in length but thicker than the 3d; together they are a little longer 
than the 4th. Thorax short, very transverse, very finely punctulate, sides 
rounded very finely margined, not concave. Elytra densely, tolerably finely 
punctulate, without any trace of raised lines. Body beneath blackish, subseri- 
eeous with brown hair; feet testaceous. 
On examining a series of specimens, which I considered as belonging to H. 
variabilis Gwér., I find differences which appear to have been heretofore 
overlooked, and which seem sufficient for the definition of several species. As 
these characters, which are derived from the thorax and from the nature of the 
pubescence, are not alluded to in previous descriptions, [ cannot be certain of the 
identity of any of our native species with those of Europe. 
5. H. picea, oblongo-ovalis picea, breviter griseo-pubescens, thorace punc- 
tulato, lateribus rotundato, subtiliter marginato, leviter concavo, elytris dense 
punctatis, minime costatis, antennis basi testaceis, articulis 2 et 3 coniunctis 4to 
jongioribus, pedibus testaceis femoribus obscuris. Long. °10. 
One specimen, Lake Superior. ‘This species is similar to the preceding, but 
the pubescence is shorter and scarcely erect. The thorax is more densely 
punctulate, and the sides are reflexed, so as to cause a slight concavity along the 
margin. ‘The antenne are as in the preceding, but the second joint appears 
somewhat thicker. 
7. H. punctata, oblongo-ovalis, picea, dense subhispide griseo-pubescens, 
capite thoraceque valde punctulatis, hoc lateribus distinete punctulatis, elytris 
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