210 THE BUTTERFLIES OF NEW ENGLAND. 



very narrow with slightly convex sides, nearly smooth on its lower half. First joint 

 of antennae depressed, mammiform; second very small, cylindrical, about four times 

 as long as broad, and scarcely a fourth the diameter of the first; third minute, as long 

 as broad, and emitting a long and delicate hair. Ocelli as in Satyrodes. Labrum 

 small, excessively thin, about twice as broad as long, the front roundly and considera- 

 ble emarginate. Mandibles very broad, short and stout, though not very large, the 

 edge straight aud chiselled. 



Body moderately long, gently fusiform, largest rather belihul the middle, and taper- 

 ing more anteriorly than posteriorly, nowhere longitudinally angulate or carinate, the 

 terminal segment moderately furcate. Each segment divided by incisions into six 

 subequal, transverse belts, each carrying a crowded series of minute, excessively 

 high, conical papillae, each supporting a conical pointed thorn shorter than itself; the 

 belt in advance of the one carryiug the spiracle is much more fully crowded and 

 broader than the others. Spiracles exceedingly minute, short, oval. Legs very short, 

 conical, rapidly tapei'iug; claws minute, arcuate. Prolegs very short, plump, and 

 rounded, armed at tip Avitli a crowded series of booklets. 



Chrysalis. Head and thorax much appressed in front so as to present a nearly flat 

 surface at right angles to the ventral surface of the appendages. Dorsum of thorax 

 roundly but, excepting for the rapid frontal descent, not strongly arched, tectiform 

 aud carinate. Laterally the head is squarely angulate, parallel to the also parallel 

 inner (doi'sal) margins of the wing cases, and between the two the thorax rapidly 

 widens. Abdomen large, full, very strongly arched, superiorly depressed between a 

 pair of supralateral carinae, which grow in elevation posteriorly. The inner (dorsal) 

 margins of the wings developed into strong carinae, which follow but not so promi- 

 nently the outer margin of the front wings. Tongue case exposed throughout its 

 length. Cremaster large, greatly extended, depressed, quadrate. Spiracles rather 

 protuberant. 



It is uncertain over how wide a region this genus of small satyrids 

 spreads, but it is peculiar to America and probably extends into the south- 

 ern continent where nearly allied genera are numerous. Exclusive of the 

 West Indian Archipelago, it is found over the whole of North America east 

 of the Rocky Mountains, as far as southern Canada ; within the United 

 States it is represented by two or three species, but only one occurs within 

 New England, where it is confined to the southern and central portions. 



The butterflies are of a nearly uniform dark brown, the outer margin of 

 the wings delicately pencilled with darker lines, the upper surface, unless 

 uniform, furnished with rather large, dark ocellated spots in the lower sub- 

 costal aud lower median interspaces ; these are repeated beneath and their 

 number increased by other spots, usually smaller, forming a regular series 

 equidistant from the outer margin; the middle of the under surface is 

 crossed by a pair of distant, dark, nearly straight and parallel lines; the 

 antennae increase so gradually in thickness that it is difficult to state the 

 line of demarcation of the club and the fore legs are more excessively 

 minute than those of any other New England butterfly excepting one. 



The species are single brooded and appear very early in summer, the 

 caterpillars hibernating when more than half grown. 



The eggs are nearly spherical and covered with minute reticulations. 

 The caterpillars taper toward either extremity ; the head is rounded and 

 the last segment of the body furnished with not very long but sharply 



