522 PROCEEDINGS OF THE ACADEMY OF 



"macrodontus." Page 438, 1. 1, Trochophylluni for " Trocophyllum ;" 1. 6 

 and 7, fertilis for "fertilus;" 1. 15, cordata for "cordala." Page 439, 1. 27, 

 triloba for "trilobus;" 1. 33, Noeggerathia for " Noegerathia ; " 1. 46, linearis 

 for " hmearis." Page 440. 1. 15, Hawkesbury for " Hawkesburg ;" 1. 10, 19, 

 24 and 29, Gopp for "GKiep;" 1. 31, oreopteroides for " oreopterodes ;" I. 45,' 

 Piuckenettii for " Pluckenetti/' Page 441, 1. 12, Lepidodendron for " Lepi- 

 dondendron;" 1. 31, either or for "neither nor." Page 442, 1. 27, Hut- 

 tonia for " Huttoni ;" 1. 33, Rhytidolepis for " Phitodolepis ;" 1. 53, solanota 

 for "solanus," psilophloea for "psilophloeus." 



Contributions to American Lepidopterology. No. 7. 



BY BRACKENRIDGE CLEMENS, M. D. 



BOMBYCID^. 



Oylothrix. 



Fore wings with the tip and inner angle rounded ; inner margin about one- 

 half as long as the exterior ; hind margin entire, very oblique ; woolly toward 

 the base, with the hairs curled. The subcostal vein sends off two marginal 

 nervules from the cell, one near its superior angle and the other above the 

 origin of the discal vein. Exterior to the cell it becomes 3-branched ; giving 

 off the apical nervule first near the second marginal and immediately 

 subdividing into post-apical and subcosto-inferior. The disco-central arises 

 from the middle of the angulated discal vein. The median is 4-branched, the 

 posterior arising about the middle of the cell and the branches equidistant, 

 except the medio-discal and superior. The fold of the wing is thickened. 

 Submedian vein furcate at the base, with a branch to inner margin in the 

 basal third of the wings. Hind wings longer than the abdomen, smooth, 

 without costal vein, and bristle and socket. The subcostal vein is bifid, in- 

 distinctly furcate at its base, its lower branch giving rise to the discal vein, 

 which is slightly angulated beneath the origin of the disco-central nervule. 

 Median vein 4-branched, the posterior arising about the middle of the cell. 



Head small, rather impacted on the thorax, not depressed, without ocelli. 

 Face extremely narrow; eyes small and round. Antenna?, basal joint slight- 

 ly tufted, the stalk simple from the base to the middle, and thence to the tip 

 with extremely short pectinations ; about as long as the thorax. Labial palpi 

 cylindric, very short. Tongue wanting. Thorax thick, with long, rather 

 erected silky hairs. Abdomen pilose, without apical tuft, and the legs very 

 hairy, even to the tips of the tarsi ; posterior tibise with two extremely short 

 apical spurs. 



0. salebrosa . Fawn color. Face, labial palpi and breast beneath the 

 mouth dark brown. Antennae grayish. Thorax with whitish hairs on the 

 disk in front, and a pencil of the same on each side behind teguhe. Along 

 the base of the nervules of the fore wings is a rather broad grayish space, ex- 

 tending from the costa almost to the inner margin, with each of the nervules 

 marked on both sides by a short brown line, while the nervules are grayish. 

 The inner streak of the subcosto-inferior nervuh' is blackish brown, and on the 

 discal vein is a streak of the same hue. In the space between the median 

 and submedian veins the wing is reddish brown, mixed with blackish, with 

 two blackish points extended into the grayish space on each side of the thick- 

 ener! fold. Hind wings concolorous, pale luteous. Legs with whitish hairs, 

 tarsi black. 



JNote The species marked with an [*] in the present paper are not in the collection 

 of ihe writer; should any one. therefore, recognize the descriptions he will feel much 

 obliged for specimens of the insects so marked. 



[Nov. 



