INSECTS — COLEOPTERA. 
63 
fortius marginato, subito constricto et breviter tubulato; elytris sat dense postice subtilius 
punctatis, parallelis postice obtusis. Long. '5. 
One specimen, found at Sacramento by Mr. Wittick. Eesembles the preceding, but the form 
of the thorax is very different. 
A. subcyanea, nigra parce pubescens, capite thoraceque minus dense punctatis, hoc linea 
dorsali sublaevi, latitudine baud breviore, antrorsum subangustato, lateribus antice paulo 
rotundatis, ad apicem constricto breviter tubulato; elytris antice fortiter minus dense, postice 
subtilius punctatis, obscure cyaneis, parallelis postice obtusis. Long. •4L 
San Francisco, Mr. Child, Also related to the preceding and to the next species, but differs 
by the thorax being less densely punctured. The elytra are more coarsely and less densely 
punctured towards the base than in A. lugens and fusca, resembling in this character A. suh- 
aenea Lee, from which it differs by the thorax being broadly rounded, and not angulated at 
the sides. 
A. tumida, cyaneo-atra pubescens, capite thoraceque confertim punctatis, hoc linea dorsali 
laevi, latitudine breviore, convexo, lateribus postice parallelis, antice valde rotundatis, ad 
apicem valde constricto et tubulato ; elytris antice fortiter minus dense, postice subtilius punc- 
tatis, a basi paulo angustatis postice obtusis. Long. "42. 
One specimen, San Francisco, Mr. Child. The thorax is formed as in A. lugens, but the 
elytra are punctured as in ^. subcyanea. 
ToxoTUS Serv. 
T. flavo-lineatus, niger flavo-pubescens, thorace antice posticeque valde constricto, nitido 
parcius punctulato, canaliculato, lateribus tuberculo magno acuto armatis ; elytris a basi 
angustatis^ thorace duplo latioribus dense punctulatis et rugosis, margine a basi fere ad apicem 
vittaque utrinque dorsali postice evanescente antice abbreviata ornatis ad apicem oblique sub- 
truncatis. Long. I'O. 
Lec. Proc. Acad. Nat. Sc. 7, 18. 
One specimen, found by Dr. Cooper on the journey from Vancouver to Yokolt Plain. The 
elytra on each side of the yellow diacoidal vittae are marked with a distinct elevated line. 
T. spurcus, testaceus, supra parce subtiliter pubescens, capite canaliculato, subtiliter thorace 
evidentius rugose punctato, hoc canaliculato latitudine paulo longiore antrorsum angustato, 
utrinque transversim valde impresso, lateribus S|)ina valida acuta armatis ; elytris thorace duplo 
latioribus parallelis postice obtusis spina brevi suturali armatis, antice fortius postice subtilius 
punctatis, gutta submarginali ad medium strigisque duabus posticis nigricantibus. Long. '96. 
Steilacoom, one specimen, Mr. Gibbs. Of the same form as T. Scliaumii Lec, but the elytra 
are not obliquely truncate at tip. The elytra of the male are therefore probably slightly nar- 
rowed from the shoulders. The fourth joint of the antennae is a little shorter than the third, 
and one-half as long as the fifth. 
Leptura Linn. 
L. vitiosa, nigra, flavo-pubescens, capite rufo-variegato, thorace confertim punctato, latitu- 
dine breviore antrorsum angustato, lateribus subangulatis basique subito depressa testaceis, 
angulis posticis productis, disco nigro subcanaliculato, postice utrinque oblique impresso ; elytris 
punctatis, flavis macula laterali ad medium apiceque late nigris, a basi angustatis ad apicem 
