1924 THE BUTTERFLIES OF NEW ENGLAND. 



Masicera rileyi, n. sp. PI. 89, figs. 22, 24. 



Male. — Front ou the sides distiuctly yellowish poUinose; the deep red median stripe a 

 full third of the width of the front; the small bristle near the angle of the eye, and 

 "the small, median, vertical pair present, in addition to the usual stout, vertical, pos- 

 teriorly directed, and the less stout, similarly directed pair on the upper part of the 

 front; the lateral rows are composed of numerous, not very stout bristles, and reach 

 to the base of the third antennal joint. The ground-color of the cheeks and face is 

 chiefly yellow, partly concealed beneath the changeable pollen ; the small bristles on 

 the sides of the depression reach nearly to the middle. First two joints of the anten- 

 nae yellow, the third black, rather narrow, and scarcely three times as long as the 

 second. Palpi yellow. Mesonotum thinly poUinose, the usual stripes apparent from 

 behind. Scutellum, except the narrow base and lateral margin, reddish yellow; the 

 apical pair of bristles very small and approximate. Abdomen yellowish red, with a broad 

 median stripe, and the hind margins of the posterior segments black; the abdomen is 

 clothed rather thickly with recumbent, bristly hairs, and the bristles, which are con- 

 fined to the hind margin of the third and the fourth segment, are not large or conspicu- 

 ous. Legs pitchy black ; claws and pulvilli small. Wings as usual. Length, 7-8 mm. 



Three males and four females from Dr. Riley, labelled : "153, para- 

 sitic on [Heraclides] cresphontes," and "358, Feb. 24, '80." The female 

 shows but little difference from the male, aside from the lateral orbital 

 bristles ; the third antennal joint appears to be a little broader. 



Masicera (Phorocera?) sp. 



A single male specimen, from Professor Eiley, bearing the label : "June 23, '79, par. 

 on antiopa," I am not quite sure whether to locate under Masicera or Phorocera. 

 The under portion of the eye is very sparsely hairy, almost doubtfully so, but the ab- 

 sence of median bristles on the abdominal segments indicates a closer relationship to 

 Masicera. The front and face are yellowish poUinose, the frontal stripe a third of the 

 ■width of the rather narrow front. Antennae black ; palpi yellow. Leg black, some- 

 what pitchy; claws and pulvilli elongate and large. From M. rileyi, the narrower 

 front, more black abdomen, and especially the elongate claws and pulvilli will dis- 

 tinguish it. To M. frenchii, the relationship is closer, but the third joint of the an- 

 tennae is shorter (in frenchii the third joint is four or more times as long as the 

 second) , and the abdomen is not wholly black. From the species of Phorocera here 

 described, the entire absence of bristles on the second segment of the abdomen will 

 distinguish it. Should the characters above given serve to fix the species, it may be 

 called M. dubia. 



