NATURAL SCIENCES OP PHILADELPHIA. 321 



rugose punctatis, macula utrinque basali rotundata, lateribusque pone quad- 

 rantem runs. Long. '48. 



Rocky Mountains or Oregon. Of the size and shape ofT. Stansburii, 

 but differs by the head and thorax being more finely and densely punctured: 

 the latter is also more transverse, and the sides converge slightly behind, 

 while in the other they are parallel. I take great pleasure in dedicating this 

 fine species to my learned friend, Andrew Murray, to whose liberality I owe 

 this and many other valuable additions to my collection. 



Acmaeops mollipilosa, robusta nigra, pube longa cinerea haud dense 

 vestita, capite dense thorace modice punctato, hoc convexo, apice constricto, 

 lateribus ante medium subito rotundatis, postice parallelis, obsolete canal- 

 icular, elytris dorso subdepressis, lateribus oblique impressis, apice subob- 

 lique attenuatis dein obtuse rotundatis, violaceo-tinctis, minus dense punctatis, 

 punctis postice subtilioribus, pedibus dense fusco-pubescentibus, antennis 

 fuscis basi nigris. Long. "57. 



Oregon or Rocky Mountains. Resembles more nearly the Californian 

 A. lugens Lee. than any other in my collection, but is sufficiently distinct 

 from that species by the more flattened elytra, with the sides strongly im- 

 pressed behind the humeri, and more broadly rounded, or even subtruncate 

 at the tips. 



Acmaeops viola, robusta, nigra, pube brevi nigra parce vestita, capite 

 dense, thorace modice punctato, hoc convexo, apice constricto, lateribus 

 praecipue antice rotundatis, elytris dorso subdepressis, apice obtuse rotun- 

 datis, minus dense antice fortius postice subtilius punctatis, cyaneo-viola- 

 ceis, antennis nigris. Long. '43. 



Oregon or Rocky Mountains. Smaller than the preceding, and differs by 

 the shorter black pubescence, the elytra more strongly punctured, less im- 

 pressed at the sides, and more regularly rounded at the tip. 



Acmaeops lupina, nigro-picea, pube longa fusca dense vestita, capite 

 dense subtilius, thorace minus subtiliter confertim punctatis, hoc convexo 

 apice constricto, lateribus subangulatis postice paulo concavis, elytris sub- 

 cylindricis, thorace sesqui latioribus, antice modice postice subtilius et densius 

 punctatis, apice rotundatis subtruncatis. Long. '48. 



Rocky Mountains. 



Chrysornela multipunctata, Say ; var. verrucosa Suffrian, Ent. Zeitung. 

 1858, 266. Carlton House, Mr. Barnston. 



Chrysornela subseriata, nigra, vix aenescens, oblonga, alata, thorace 

 lateribus incrassatis rotundatis, sulco vago grosse punctato a disco separatis, 

 hoc subtiliter punctato, elytris thorace haud latioribus, disperse punctatis, 

 punctisque paulo majoribus seriatis, seriebus per paria minus distantibus. 

 Long. -32. 



Oregon or Rocky Mountains. The punctures of the rows are small and 

 closely placed, the rows are 9 in number and a short scutellar one. 



Oedionychis scripticollis Lee; Alticascripticollis Say. Saskatchewan 

 River. 



Synopsis of the Scaphidiidas of the United States. 



BY JOHN L. LE CONTE. M. D. 



Several years ago I wrote a synopsis of our species of the family of Coleopter- 

 ous insects here treated of, but the manuscript having been lost by the printer, 

 was not published. I have recently had occasion to study again this group, 

 and therefore now make known the species in my collection. The native 

 genera may be arranged in the following manner : 



I860.] 



