SATYRINAE: THE GENUS SATYllODES. 189 



tapevinc: regularly upAvard, the frontal triaiifjle more than lialf as hijjh again as broad, 

 reaching; considerably above the middle of the head, tlie sides straijjjlit. Surface re"'- 

 ular, pretty uniformly and profusely punctate -\vitli roundish and oval impressions, 

 the slender walls between -whicii an; fre((uently raised into points, each bearing a very 

 short hair, those on tlie horns directed toward tlieir apex ; triangle smooth. Antennae 

 exceedingly small, the first joint mucli the largest and mammiform, the third slender 

 and no longer than broad, emitting a very long curved hair. Ocelli Ave in number, 

 four arranged in an open curve, its convexity forAvard and a very little downward, the 

 upper two in contact, the third at ecjual distances from the first, fourth and fifth, the 

 latter being behind the third, and with it and the fourth forming an equilateral triangle ; 

 the second much lai-ger than the others, foUoAved in size by the first, the others equal. 

 Labrum rather small, about twice as broad as long, its angles rounded, the front 

 slightly excised and angulated. Mandililes rather small and stout, the edge smooth 

 and equal. Maxillary palpi very small, apparently as in Oeneis. 



Body long and slender, broadest, though Init slightly, on the first abdominal se"-- 

 ment, tapering sliglitly behind; nearly cylindrical, but angulated very slightly at the 

 laterodorsal line, having a slight infrastigmatal fold, and the under surface nearly 

 flat; terminal segment with a pair of horns, very similar in form and length to those 

 of the head, but posteriorly extended, their outer surfaces pai-allel. Each segment 

 divided by five transverse incisions into sections, Avhich are equal on the thoracic, un- 

 equal on the abdominal segments, one incision being at the middle, one in advance of 

 it above the spiracles, the others dividing the posterior half into eciual portions. Body 

 studded profusely with minute, hemispherical papillae, from each of which arises a 

 very short, stout, equal, round tipped, backAvard directed hair. Legs very short, slen- 

 der, conical, each joint Avith a ring of short tapering hairs; claws very slender and 

 small, straight beyond the base. Prolegs very short and plump, the booklets of the 

 ventral pairs eleven in number, very slender, a good deal curved, nearly equal, distant, 

 arranged in the half of a longitudinal OA'al. 



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

 surface at an angle of scarcely 70° Avith the nearly straight ventral surface of the an- 

 terior half of the body. Dorsum of thorax rectangular and mesially carinate on the 

 mesonotum, distinctly though slightly falling ofl' posteriorly, the abdomen scarcely 

 rising to an equal height Avith the mesonotum in its regular arching backward ; the 

 whole abdomen conical and vespiform. Ocellar tubercles obscurely trigonal, scarcely 

 advanced, the space between them scarcely emarginate. Viewed dorsally the head is 

 scarcely half as wnde as the thorax, which is equal from the basal vnng tubercles back- 

 ward, and slopes regularly but with a slight concaAity foro'ard to the anterior extrem- 

 ity. Inner dorsal margin of the wing-case developed into a nearly straight, but 

 curA'ing and prominent carina, Avhich dies out just before the outer margin. Tongue- 

 case barely reaching the Aving tips. Cremaster slender, tapering, quadrate, depressed. 

 Spiracles OA'ate, lenticular, in a slight depression. 



This genus, so far as Ave know, is represented, like Enodia, by a single 

 species, which occurs only in the northern parts of the eastern United 

 States and in Canada. It is a butterfly of peculiar appearance from the 

 softness of its coloring and the delicacy of its markings ; the wings are 

 rounded and ample, of a pale mouse broAvn, their outer border marked 

 Avith one or tAVO delicately pencilled lines, at some distance from Avhich is a 

 series of dark spots, blind above, ocellated beneath, preceded on the fore 

 wings above by some paler clouds and on both Avings beneath by several 

 distant, irregular, slender, dark, transverse streaks. 



The insect is single brooded, the buttei-fly flying in midsummer and the 

 larva hibernating ; the chrysalis is suspended at pupation. The egg is 



