Vol. xxix | ENTOMOLOGICAL NEWS. 55 



immaculate but they may have from one to three well defined yellow 

 spots on each elytron, situated as in the spotted forms of M. fulvogttt- 

 tata Harr. and M. drummondi Kirhy. 



This species in the table of Dr. Horn 2 would come immedi- 

 ately after M. fiilvoguttata Harr. It differs from this by 

 being generally narrower and more convex, more brilliant, 

 with more acute hind angles to the thorax, a more densely 

 punctured pronotum, and by having a subserrate ridge on the 

 last ventral segment near the side margin. From M. intrusa 

 Horn which it superficially resembles, it differs by being gen- 

 erally larger, by having the sides of the thorax less parallel, 

 and by lacking the uniformly dispersed pile on the elytra ; 

 and from the recently described M. piniedulis Burke, 3 a closely 

 related species, it differs by being larger and more convex, by 

 never having the elytral maculations more than mere spots, 

 by having the thorax longer and with sides less parallel and 

 by not having the submarginal ridge of the last ventral either 

 so distinctly serrate or continued around the apex of the seg- 

 ment. 



My series of fourteen specimens represents material taken 

 at Carrville, Trinity County, El Dorado County, Tuolumne 

 County, Shasta County, and Mount Wilson, Los Angeles 

 County, and from the yellow pine, Pinus pondcrosa Dougl., 

 Jeffrey pine, P. jcffreyi Yasey, digger pine, P. sabiniana 

 Dougl., and the big-cone spruce, Pseudotsuga macrocarpa 

 Mayr., the Mount Wilson specimens being captured on this 

 last. Besides my series, I have examined at least thirty more 

 specimens, chiefly in the collections of Mr. H. E. Burke and 

 Mr. Ralph Hopping. The species is apparently confined to 

 California and in Northern California and the Sierras seems 

 to be found only about the pines, while its more common rela- 

 tive, M. drummondi Kirby. has a preference for the Douglas 

 fir, Pseudotsuga ta.rifolia Britt. 



Type male from Carrville, Trinity County, California, July 



2 Revision of the species of some genera of Buprestidae by George H. 

 Horn, Trans. Am. Ent. Soc. Vol. X (1882) p. 102. 



3 A new Ruprestid Enemy of Pinus Edulis by H. E. Burke, Proc. Ent. 

 Soc. Wash. Vol. IX (1908) pp. 117-118. 



