REVISION OF THE BUPRESTIDA OF THE UNITED STATES. 213 
5. M. atropurpurea. Buprestis atropurpurea Say, Journ. Acad. Nat. Sc. 8, 160. 
Texas and Kansas. Varies much in size, and although very similar to the preceding, 
it differs by the following characters. The punctuation of the middle of the thorax is 
distinct, the sides are more broadly rounded, and not at all sinuate behind: the basal 
caring: are shorter and diverge rapidly from the margin: finally, the elytra are more sud- 
denly narrowed behind, and the tips are concavely attenuated from the suture, and armed 
with a short but very acute spine, while in the preceding they are merely pointed. 
6. M. opaca, atra opaca, thorace latitudine vix breviore, lateribus ante medium obtuse angulatis, postice haud 
sinuatis, angulis posticis obtusis carina brevi margini approximata, punctis versus medium fere obsoletis, canalicu- 
lato, ante scutellum foveato, elytris granulato-punctatis late impressis, postice sensim attenuatis, apicibus intus 
paulo concayis spina brevi armatis. Long. :50. 
One specimen, Georgia. Differs from both the preceding by the sides of the thorax 
being obtusely angulated before the middle, at the widest part: the elytra are as in M. 
appendiculata, that is to say with a short not very acute spine at the apex, which is con- 
cavely attenuated on the sutural side. From M. appendiculata it differs chiefly by the 
sides of the thorax falling obliquely on the base, thus making the posterior angles obtuse. 
B.—b. 
7. M. Drummon di, nigro-enea, depressa, thorace latitudine sesqui breviore, lateribus rotundatis, subcanali- 
culato, postice ad medium et latera late foveato, disco rugis transversis subtilibus insculpto, lateribus punctatis et 
longitudinaliter rugosis, elytris rugose punctatis, obsolete tricostatis, guttis flavis quatuor saepe deficientibus orna- 
tis. Long. -31—-40. : 
Buprestis (Trachypteris) Drummondi Kirby, Fauna Bor. Am. 159. 
Apatura Drummondi Lap. & Gory, Mon. Buprest. 1, 3, tab. 1, fig. 3: Mann. Bull. Mose. 1848, 286. 
Melanophila guttulata { Mann. Bull. Mose. 1858, 221. 
Oregon and Washington Territories, abundant, straying into California and Russian 
America. Closely allied to the next, which however differs by the thorax being much 
more coarsely rugous and with distinct punctures all over the surface, and by the elytra 
being entirely destitute of vestiges of three costee. The Siberian M. guttulata on compa- 
rison is found to be different from both: the thorax is rugous as in M. Drummondi, but 
its whole surface is besides more densely and finely punctured than in the next species 
and the sides are also less rounded: the elytra are more densely punctured with hardly 
perceptible traces of costae. Thus as in the preceding group the species of the other con- 
tinent holds an intermediate place between two of our species. 
All three vary greatly in the size and number of the spots, which are frequently en- 
tirely absent. 
8. M. fulvoguttata, nigro-enea, depressa, thorace latitudine sesqui breviore, lateribus rotundatis, tenuiter 
