94 PROCEEDINGS OF THE ACADEMY OF [March, 



and the fastigio-facial angle also more broadly rounded ; the caudal 

 margin of the pronotal disk being more distinctly angulate and 

 the coloration with a larger percentage of green or greenish. 



Type.- — The original specimen of this species, on which Serville 

 founded the name, was a female fi'om "TAmerique septentrionale," 

 labelled by Latreille, from whose collection it was received. The 

 description is sufficient to enable us to locate the species with 

 fair certainty and correlated information assists further. Material 

 in Serville's possession, similarly labelled and of similar origin, 

 formed the basis of, among other species, Leptysma marginicoUis,^^ 

 Paroxya clavuliger and Psinidia fenestralis. As the range of these 

 species has been fairly well mapped, and, as the region inhabited 

 by maculipennis was largely unexplored, or at most unsettled, in 

 the days of Latreille, we can feel relatively safe in considering 

 the probable origin of the Latreille specimen as the southeastern 

 states, where all the other species from the Latreille Collection 

 occur, where bivittata as we understand it also occurs, and rnaculi- 

 pennis is unknown. The present location of the Serville material 

 is not definitely known to us." 



Morphological Notes. — The present species shows a relatively 

 small degree of variation in the dorsal fastigial form, viewed from 

 the standpoint of the genus, although there is quite an appreciable 

 difference between the extremes found in either sex. In the male 

 the extremes measure from about 52° to 84° in their angulation, 

 or from a moderately acute angle to nearly a right angle, with its 

 horizontal apex from narrowly rounded to rather broadly and 

 bluntly rounded. The strength of the very short median carina 

 on the cephalic section of the male fastigium varies greatly; it 

 is never really strongly marked and is occasionally absent. The 

 exact width of the marginal rim of the fastigium, due to the posi- 

 tion of the intermarginal depression, varies as much in this as 

 in the other species of the genus. In the female the angle of the 

 horizontal apex of the fastigium varies from about 80° to 95°, 

 or from a slightly acute to a slightly obtuse angle, with much 

 variation in the degree and extent of the rounding of the same. 



*^ These are placed in their modern genera. 



" When comparing the description with intertexta, the only other species of 

 the southeastern states to which it might apply, it is evident Serville did not 

 have that species, as he says the postocular bars are black, while in intertexta 

 they are always brown in the female, and the subcostal pale tegminal bar is so 

 reduced and relatively weak it /kvouki not answer the description. In addition, 

 the size of females of intertexta from the southeastern states is always greater 

 than "20 lignes," as described. 



