Jan., 'lO] ENTOMOLOGICAL \F.\VS. , 



Secondary sexual characters in this genus are chieily mam- 

 fest at the abdominal apex. The last ventral of the male i- 

 not modified, the apex broadly rounded. In the female of all 

 the species known to me except crinitns the last ventral i- either 

 foveate or obliquely ascending- at apex, the mar- in in 

 broadly rounded or truncate. In Mr. Schaefi'er'-, description 

 of tie gund o the apex of the last ventral is said to be broadly 

 emarginate in the male and broadly rounded in the female. It 

 is probable that he mistook the sexes and the character- should 

 be reversed. Le Conte says of uii.vtns "The male ha.- the 

 thorax finely rugose," and of parrulns (merely a small ini.v- 

 tus) "the thorax of the male is finely rugous, that of the fe- 

 male smooth." Hamilton says that the thorax of the in 

 (iiii.vtits) is very closely aciculate, that of the female -.month. 

 These differences are not at all apparent in my own -erie-, an 1 

 I am forced to consider them imaginary; in fact I find that tin- 

 two specimens of parvulus upon which Le Conte's observation - 

 were made are both males. The antennae are as a rule but 

 little longer in the males than in the females. 



The greater number of our species of this genus are knnun 

 to occur on pines. Crinitns is found on live oaks, nc</uiiu<> 

 on box elder, and volitans from Lower California can hard- 

 ly occur on conifers. These three species, moreover, differ 

 from all following by the more strongly developed and acute 

 lateral tubercles of the prothorax. 



Supplementary note on Pogonocherus. 



Since submitting the above to the NEWS, there has appeared 

 an article by Mr. Schaeffer in the September issue of the 

 Journal of the New York Ent. Soc. containing a table of the 

 species of Pogonocherus together with the de.-cription of .still 

 another new species concolor with doubtful locality but 

 supposedly from California. I am unable to determine 

 certainty where concolor should go in the above table. 

 Schaeffer does not say whether the lateral tubercle of the pro 

 thorax is acute or obtuse, but assuming that it is ohtn-e a- in 

 the greater number of species, and that the erect hairs 

 antennse and legs are not conspicuously Ion-, it \\.nil 

 dated with orcgonus and culifornicus. from both of 

 is at once distinguishable by its uniform yellowish cir 

 coloration and the absence of elytra! tufts of setae. 



