52 



E The wide discal interspaces finely, confusedly punctured near 

 the suture; with a median granule at the apex of the 3rd 

 and 4th sternites. Cal., N. Mexico. californicus Lee. 



EE The discal interspaces uniseriately punctured; the 3rd and 



4th sternites unarmed. 



F The elytral striae rather strongly impressed, with the 

 punctures of medium size; the interspaces distinctly 

 though feebly striate; the 2nd abdominal sternite opaque, 

 very finely punctured. tsugae Sw. Page 53. 



FF The elytral strise rather feebly impressed, with the punc- 

 tures small; the interspaces hardly at all striate; the 

 2nd abdominal sternite shining, with deep punctures 

 of medium size. monticolse Sw. Page 53. 



CC Elytra usually with only faint traces of striae, the interstrial punc- 

 tures usually as large or nearly as large as those of the striae. 

 D The discal interspaces somewhat confusedly punctured near the 

 suture and feebly striate, the 2nd abdominal sternite very 

 narrow and oblique. New York. sulcatus Lee. 



DD The discal interspaces uniseriately punctured; the 2nd abdominal 



sternite large. 



E The ventral declivity opaque, very finely and closely punc- 

 tured. CaL, Idaho, Utah, N. Mexico. prseceps Lee. 

 EE The 2nd segment moderately shining and sparsely, moder- 

 ately punctured. ven trails Lee. Page 53. 



Eccoptogaster rugulosus Ratz.; Forstins. I, 187, 1837; Gossard, Ohio Agric. 

 Exp. Sta. Bull. 264, (Biology and Control), 1905. 



Length 2 mm. to 2-5 mm.; nearly black, with the antennae, legs and 

 tips of the wingcovers reddish brown; the pronotum with coarse, rather 

 close, elongate punctures; the elytra rather deeply, closely striate, the 

 punctures moderate, larger in front, close, similar on the striae and inter- 

 spaces, the interspaces striate along the row of punctures so that striae 

 and interstriae are similar, interstrial punctures sometimes irregular; 

 elytral pubescence short and sparse; the male with the front flattened 

 rather than plano-convex as in the female; the ventral declivity strongly 

 oblique but not excavated nor toothed. 



Host trees. Apple, Cherry, Plum, Peach, Quince, Nectarine, Black 

 Cherry, and Wild Plum in North America. 



Distribution. In North America, Eastern United States and southern 

 Ontario, from Texas to the Niagara peninsula. Not known from elsewhere 

 in Canada. An injurious orchard pest. 



Eccoptogaster quadrispinosus Say; Acad. Nat. Sci. Phil. Jour., 3:323, 1826; 

 ed. Lee. 2: 182, (Scolytus): caryce Riley; Prairie Farmer, Feb., 1872; Pract. 

 Ent. 2: 58, (Scolytus) 1867. 



PLATE 11. 

 IPID BEETLES ALL GREATLY ENLARGED. (ORIGINAL.) 



Fig. 1, Anisandrus obesus Lee., male. 

 Fig. 2, Anisandrus pyri Peck, female. 

 Fig. 3, Dryocoetes affdber Mannh. 

 Fig. 4, Dryocoetes pseudotsugce Sw. 

 pig. 5, Dryocoetes betulce Hopk., female. 



