A REVISION OF NORTH AMERICAN CHRYSOBOTHRINl 15 



Ehrhart), sweet birch (Betula lenta Linnaeus), hickory (Hicoria sp.), 

 and black oak (Quercus velutina LaMarck). Smith (1900) records 

 the species on pine, but this may not be a host tree. 



The color on the dorsal surface of the body is more purplish on 

 some specimens, the sides of the pronotum are either parallel or 

 slightly rounded, the anterior margin of the clypeus is sometimes 

 vaguely emarginate without a median tooth, and the teeth on the 

 middle and posterior tibiae of some males are obsolete. The length is 

 9.5 to 15 mm. 



Saunders (1871) misidentified Belionota calif ornica Motschulsky 

 and placed it as a synonym of Chrysooothris calif ornica LeConte, 

 both of which were described in 1859, but the writer is unable to find 

 the exact date of publication of the descriptions of these two species. 

 There is some doubt about the identification of calif ornica Mots., but 

 Horn (1886) states that it is Actenodes acornis Say. Motschulsky 

 described the species as a Belionota,, giving the locality as "Nova- 

 Helvetia," Calif., which is the present site of the city of Sacramento. 

 From the examination of the figure it seems to be an Actenodes, but 

 no specimens of this genus are known from that locality, and acornis 

 is not known from west of the Rocky Mountains. The early wagon 

 trains crossing the Great Plains picked up insects along the way, and 

 they were left with Mr. Sutter, who lived near the present site of 

 Sacramento. These got into the hands of Vosneszensky, and thence 

 to Moscow, where they were described by Motschulsky, Mannerheim, 

 et al. On account of conditions in Europe, the writer has been unable 

 to have specimens compared with the type of calif ornica Mots, in the 

 Moscow Museum. 



LeConte (1873) placed rugosula Gory as a synonym of acornis after 

 examining the type of rugosula in the collection of Count Mniszech 

 in Paris. 



Say's description of acornis was probably made from a male and 

 Melsheimer's description of punctata from a female. 



(7) Actenodes simi Fisher 



Actenodes simi Fisher, 1940, Ent. Soc. Wash. Proc. 42 : 176. 



Male. — Moderately elongate, slightly convex above, slightly shining, bronzy 

 black, with a faint cupreous or purplish reflection; beneath bluish black, with 

 distinct greenish and violaceous tinges, and more strongly shining than above. 



Head bluish green, slightly violaceous in front, cupreous on occiput, with a 

 narrow longitudinal carina on occiput, the carina strongly bifurcate on vertex; 

 front slightly convex; surface glabrous, coarsely, deeply foveolate-punctate on 

 the front, more finely punctuate on occiput ; clypeus transversely sinuate in 

 front. Eyes separated from each other "on the top by about one-fourth their 

 width at widest part. Antenna bluish to greenish black, short, extending beyond 

 vertex of head, slightly narrowed to apex, the first three segments together 

 shorter than the following segments united; intermediate segments compact, 

 as long as wide, broadly subtruncate at outer margins, and with a few long, 

 whitish hairs ; third segment as long as the following two segments united. 



Pronotum twice as wide as long, narrower at apex than at base, widest at 

 base; sides slightly, obliquely diverging from apical angles to posterior angles, 

 which project outward and are broadly rounded; base transversely sinuate on 

 each side, the median lobe broadly rounded ; disk slightly convex, broadly, trans- 

 versely depressed behind the middle, without distinct prehumeral carinae ; sur- 

 face glabrous, rather coarsely, transversely rugose, coarsely punctate between 

 the rugae. Scutellum bronzy green. 



