26 



and a short, more or less curved line, on basal Joint of antennte, and 

 two short black lines on tlie second joint, tbe outer being the shorter. 

 The eggs are deposited in double rows in long slits made by the ovi- 

 positor of the fenuile, in the smaller lateral branches or the leaf-petioles 

 of the cotton. Each egg is very elongate, 3""" long, or over five times 

 as long as thick, perfectly white, and with a granulated cap at the top 

 or outer end. The duration of the egg stage is from four to five days, 

 although it may be even shorter, as apparently fresh specimens taken 

 in the petiole of a leaf on August 3 hatched August 6. Other speci- 

 mens taken August 5 hatched August 0. 



The cone-headed locust {Conocephalus obtusus Burm.). — Only occa- 

 sionally met with on cotton. It feeds on the leaves, eating large pieces 

 out of the sides and gnawing holes through the middle. 



Two nymphs of another species, or belonging to another genus, were 

 also taken feeding on the leaves. This species has an acute tubercle 

 on the forehead and white rings on the antennne. 



The long-tailed cotton locust {OrcheUmum gossypil Scudd.). — This 

 species is in the National Museum labeled 0. longicauda Walsh, but so 

 far as I can find was never described by him. 



Mr. Samuel H. Scudder in "Entomological Notes" (pt. lY, p. 64) 

 described it under the name 0. gossypii, and says: "This is the insect 

 referred to in the Proceedings of the Boston Society of Natural History 

 (vol. XI, 1^. 434) as laying its eggs in the stems of the cotton plant. The 

 eggs were pale yellow, one-fifth of an inch long, cylindrical, bluntly 

 pointed, and a little tapering at the end from which the larva emerges; 

 the other extremity was rounded." 



I found the species common, feeding iu the blossoms, eating the 

 corolla and petals, and preventing the formation of the boll. The 

 species is very voracious, and a single specimen must destroy many 

 bolls before attaining full growth. 



Two other species with similar habits, 0. glaberrimum Burm. and 0. 

 fasciatum Scudd., were observed. 



The red-legged locust {Melanoplus femur-rubrum DeG.). — Taken in 

 both nymph and imago state, feeding on the leaves. 



The obscure grasshopper {Acridium ohscurum Burm.). — Very com- 

 mon. Feeds in the nymph stage upon the leaves, and sometimes almost 

 entirely defoliated some of the branches. In destructiveness it comes 

 next to the long-tailed cotton locust. 



The rugose grasshopper (iZ^/p;>/sc?/s rtigosus Scudd.) — Although plen- 

 tiful in all the fields, this species was only occasionally seen feeding on 

 cotton leaves. 



In the family Tettigidse five distinct species were taken on cotton, 

 as follows: Batrichidea cHstata Scudd.; Tettigidea lateralis Say; Tettix 

 ornatus Say; T.femoratiis Scudd.; and T. arenosus Burm. 



