8 ENTOMOLOGICAL NEWS. [Jan., 'lO 



Lateral costa strong throughout, the antemedian pale spot or 

 fascia sharply defined and not extending forward within the 

 humeri . . 4)4-6 mm. Maine to Colorado. . penicellatus Lee. 



6 mm. Alaska alaskanus Schaef. 



Lateral costa feeble or subinterrupted near the humerus ; ante- 

 rior pale area less sharply defined, reaching the base within 

 the humeri. 9 mm. San Bernardino Mis., California. 



propinquus n. sp. 

 Elytra without strongly marked costae. 



Fulvous, thorax and elytra at sides with some darker spaces, 

 each elytron with an anterior oblique pale fascia and behind 

 this a row of three tufts of erect black hairs. 13 mm. Arizona. 



arizonicus Schaef. 



Brownish or piceous elytra without tufts of erect hairs. 

 Subbasal pale area denser, not reaching side margin, antennal 

 scape stouter, elytra subcostate. 5/^-7 mm. Colorado, 



New Mexico pictus n. sp. 



Subbasal pale area reaching side but usually not the suture ; 

 scape less stout, elytra not costate. 4-7 mm. Greater part 

 of United States mixtus Lee. 



According to Schaeffer alaskanus differs from penicella- 

 tus in its "much darker color, the rounded apical angles of the 

 elytra and the shorter first joint of 'the hind tarsi." The outer 

 apical angle of the elytra is more or less completely rounded in 

 some specimens of penicellatus and as no comparative meas- ' 

 urements are given of the basal joint of hind tarsi, the charac- 

 ters seem rather too vague to incorporate in the table. 



The length given for arizonicus 13 mm. - is very great 

 for a species of Pogonocherus and is possibly an error. 



Penicellatus, alaskanus, propinquus and arizonicus agree 

 among themselves and differ from all others in having a small 

 smooth oval tubercle on the median line of the pronotum pos- 

 teriorly. The first three further agree in having the elytra 

 rather strongly costate and with a single subsutural row of 

 tufts of short erect hairs. Arizonicus has a single row of 

 such 'tufts, but the description does not say whether they are 

 near the suture or not, nor does it mention any elytral costae; 

 and since it is compared by its author with mixtus, the pre- 

 sumption is that the elytra are without distinct costa as in 

 that species. 



