DESCRIPTIONS OF NEW SPECIES. 229 



Oregon and Washington Territory ; one pair. The antenna 

 in the male are slender, nearly four-fifths the length of the 

 body ; scarcely more than half the length of the body in the 9 . 



This and L. cubitalis form a peculiar group in the genus, hav- 

 ing the eyes scarcely emarginate on the inner margin, and the 

 3d joint of the tarsi broader and more deeply bilobed than usual, 

 agreeing in these characters with Acmaeops ; the head is much 

 less constricted behind than in other Lepturae, although it is 

 suddenly narrowed, and the angles are rectangular and rounded, 

 almost as in Encyclops ; the front is, however, not vertical, the 

 transverse impression is deep, the genae rather short, the epistoma 

 and mouth moderately long ; the last joint of the palpi is but 

 feebly dilated, and squarely truncate, longer than the preceding, 

 as usual. 



I would associate these species with the 2d division of Ac- 

 ma30ps, but the antennas seem to be inserted rather behind the 

 line joining the front of the eyes, as in other Lepturae, and the 

 general appearance is more suggestive of the latter genus. They 

 would, however, be equally well placed in either. 



A 



MOXILEM A SAY. 



A. Scape of antennae feebly punctured, or nearly smooth ; 



a. Scape of antennae acute inwards at tip; 

 Disk of elytra flattened, sides suddenly inflexed ; prothorax cylindrical. 



1. APPKESSUM Lee. 

 Elytra very convex ; prothorax with a feeble lateral tubercle or spine, 



sides subsinuate. 2. ANNDLATUM Say. 



b. Scape of antennae cylindrical at tip; 



a. Body variegated with a network f white pubescence ; sides of 



elytra suddenly inflexed ; 

 Lateral tubercle of prothorax well -developed. 3. ALBOPICTUM White. 



8. Sides of elytra suddenly inflexed ; color uniform black, antennae 



alone partly cinereous ; 

 * 3d joint of antennae annulated ; 



Lateral spine of prothorax long, acute ; disk of elytra flattened ; (punc- 

 tures variable, sometimes very few). 4. GIGAS n. sp. 



** 3-7 joints of antennae annulated ; 

 Prothorax sparsely punctured, lateral spine large, acute, disk of elytra 



not flattened; 5. FORTE n. sp. 



Prothorax sparsely punctured at base and apex, lateral spine small, 



directed upwards, elytra not flattened. 6. SEMIPPNCTATUM Lee. 



Prothorax with a few punctures near the base, lateral spine small, di- 

 rected upwards ; disk of elytra not flattened, (punctures variable, 

 sometimes very few). 7. ABMATOM Lee. 



