Shaler.] 222 [March 2, 



tubercle, on the metanotuni and the first abdominal segment, and 

 quite obscured by pale on the terminal two or three segments; in the 

 brighter specimen this band is edged faintly with "white; space be- 

 tween these either dull white, clouded and streaked with yellowish 

 fuscous or apple green, the abdominal segments with a few short, 

 longitudinal, delicate, black dashes; abdominal tubercles black; wings 

 either blackish fuscous, paler externally, the base of the veins 

 streaked with black, and the tips of the nervules with a black dot; 

 or apple green, the base of the veins marked with pale dull yellowish 

 edged with black, the base of the nervules marked delicately with 

 black, and the wartlets at tip of nervules pale dull yellowish; whole 

 front of abdomen either dirty white, more or less obscured and 

 streaked with fuscous and blackish next wing tips; or whitish, slightly 

 tinged or dotted occasionally with green or black. Legs, antennas 

 and tongue blackish fuscous, or mingled green and yellowish brown, 

 streaked slightly with black ; palpal prominences brownish fuscous, 

 the sides paler, or green, above and within yellowish brown; sides of 

 pronotal tubercle wood brown, or yellowish brown. Compared with 

 P. Turnus, the lateral shoulder tubercles are slightly more prominent, 

 the excision between the palpal prominences a little deeper, and the 

 mesonotal tiibercle very much larger; the subdorsal abdominal tuber- 

 cles are also slightly more developed, and there is, in addition, a 

 lateral row of minute tubercles. Length 27.5 -3G mill. Height 

 7.5-9 mill. Length of mesonotal tubercle 2-2.75 mill.; distance 

 of tips of palpal prominences apart 4.5-5 mill. 



On the Phosphate Beds of South Carolina. 

 By N. S. Shaler. 



The following paper on the phosphate marls of the shore region of 

 South Carolina, contains a partial account of the observations made 

 upon this district by the author, while under the employ of the 

 United States Coast Survey, and is published with the permission of 

 the Superintendent of the Survey, Prof. Benj. Pierce of Cambridge. 

 A portion of the conclusions have a certain commercial as well as 

 scientific value, and it was deemed by the Superintendent desirable 

 to place them before the public at the earliest opportunity. The re- 

 mainder of the description of these beds will be found in the report 

 of the work of the Coast Survey for 1870. 



