PROC. ENT. SOC. WASH.. VOL. 22, NO. 5, MAY, 1920 89 



The mesonotum is noted in the original paper as being about 

 one-half as long as the pronotum; this is not correct, the actual 

 length being about the same as that of the pronotum, as shown 

 in Fig. 4. The terminal setae of the cercus are usually about 

 one and one-half times as long as the cercus itself. The fourth 

 segment of the antennae is also usually a little smaller in all dimen- 

 sions than the succeeding ones, though there is some variation 

 in this respect, as there is indeed in other features of the antennal 

 structure; one specimen has one antennae normal while the other 

 one is abnormal in having but eight segments instead of nine; 

 that this abnormal antennae is complete is shown by the struc- 

 ture of the terminal segment. In two specimens, one from Texas 

 and one from Florida, the antennae are asymmetrical, as in each 

 one antennae is normal while the opposite one has the fourth 

 segment scarcely larger than the third. The hairs and bristles 

 of the entire insect are pale and inconspicuous. 



In the article immediately following the present one Dr. Cramp- 

 ton describes a minute hooked structure of the obscure ninth 

 segment of the abdomen of the male which was not noticed in the 

 previous account. This character is illustrated by Dr. Cramp- 

 ton in his Fig. 2, and he calls it the notocornus, or notal horn. 

 Opposite this organ, on the posterior margin of the eighth seg- 

 ment of the abdomen is a small projection which Dr. Cra'mpton 

 calls the notoprocessus, or tergal process, and this is also shown 

 in his figure. 



The nymph of this form is very likely represented in the numer- 

 ous specimens examined, but, if so, cannot be distinguished from 

 the more mature specimens. It appears quite certain that some 

 of these apterous unchitinized individuals are really adults, for 

 if they were all nymphs it seems as if at least a few of the cor- 

 responding apterous chitinized adults would be found. But not 

 a single such adult has been found among the scores of individuals 

 examined by the writer, and Mr. Barber, a keen observer and 

 one who has seen hundreds in nature, has seen none. Mr. Bar- 

 ber is also quite certain that a fragment of an egg found by him, 

 but subsequently lost, was laid by one of these wingless unchitin- 

 ized individuals, and other specimens have been seen with a 

 rounded object visible within the body which may be an egg. 

 Future observations will eventually settle this point. 



Length about '2 mm. or a little more. 



Numerous specimens from the following localities: Naranja, 

 Fla., Mar. 1, H>H), A. Wetmore; Miami Beach, Fla., Feb. 2s. 

 1919, Snycler; Princeton, Fla., Feb. 21, MM'.), Snyder; Ortega, 

 near Jacksonville, Fla., Mar. 1."), l!Hi, Snyder; near Wallaceville, 

 Chambers Co., Tex., Nov. .">, I'.MS, Barber; ten miles north of 



