CERAMBYCID/E 255 



A second male specimen, with entirely black elytra, is placed 

 with the type of puella for the present, although there are certain 

 features that do not accord very well; it is evidently stouter, the 

 prothorax broader and with more arcuate sides, the eyes relatively 

 larger, being separated by less than twice their own widths, the outer 

 apical angle of the elytra more obtuse and the punctures of both the 

 prothorax and elytra stronger, though, on the latter, they are 

 equally well separated and better defined on the waxy ground, 

 rather than on the subopaque general surface of puella; they are 

 also much stronger posteriorly than in that species. I think that 

 this is a well defined subspecies of puella, which may take the name 

 tetrica (n. subsp.) ; its locality is likewise unrecorded. The locality 

 for dehiscens is said to be Oregon, and the antennae are described as 

 "entirely black"; otherwise the Kansas example described above 

 seems to be typical. 



Parallelina n. gen. 



A few species of small size, generally slender form and parallel 

 elytra constitute this genus, and, as in the preceding genus, form a 

 compact and clearly limited division of the Lepturini. As far as 

 known to me the species assignable to Parallelina are chalybea 

 Hald., exigua and nana (with var. haematites) of Newman, molybdica 

 LeConte and subargentata and similis (rufibasis Lee.) of Kirby, also 

 the two described below. Much confusion exists in the subargentata 

 group, owing to a very puzzling inconstancy in the coloration of the 

 legs and basal antennal joint, these differences characterizing both 

 subargentata and similis and seem to indicate polymorphism rather 

 than simple gradual variation. Similis differs from subargentata 

 in having the elytral sculpture deeper and less close-set, which, with 

 the more dusky and very inconspicuous pubescence, gives the sur- 

 face much greater lustre; the legs are most frequently black in 

 subargentata and bicolored in similis. Of forms not examined, I 

 am of the opinion that ruficeps Lee., from Georgia, is a distinct 

 species, but am less convinced concerning rhodopus Lee., from 

 California, which is black, with entirely red legs; it is however 

 probably distinct also. The following is another species of the 

 subargentata group but much smaller and with narrower prothorax: 



Parallelina filicornis n. sp. General form, coloration, sculpture and 

 short pale ashy vestiture as in subargentata, but with sparser and feebler 



