194 entomological news. [May, '07 



ocelli — between the eyes — become discernible through the 

 appearance of glassy facets, but do not have a fully developed 

 base. The antennae, at birth, have six or seven articulations 

 aside from the two larger constituting the base. The wings 

 are also much slower in developing than those of the female. 

 The antennae after the first moult — stage II — are composed of 

 from twelve to fifteen articulations beyond the base. Small 

 wingpads now make their appearance. The males are smaller 

 and receive the peculiar color marks of the abdomen, which 

 is not the case with the female until the last moult setting forth 

 the adult form. 



The lack of development of the eyes in the male nymphs 

 is accompanied by remarkable development of some other 

 parts, e. g. some specimens are found with the antennae having 

 even more articulations than are found in the imago, while 

 the eye is rudimentary. The nymphs of both sexes in stage 

 III have two-jointed tarsi and from nineteen to twenty-three 

 articulations in the antennae. The female nymphs in this 

 stage are of a beautiful faint yellow, with the head of an amber 

 tint. The thorax is of a light reddish-brown color. The 

 ocelli are plainly marked and the eyes are not fully developed. 

 The antennae contain sixteen to twenty-four articulations. The 

 tarsi two-jointed. This latter structural difference, and the 

 short, broad, and uniformly bright yellow-colored abdomen 

 of the gravid female nymph contrasts it readily from the 

 regular female imago of the same species, which is marked 

 as shown in Fig. I. 



Five large gravid female nymphs taken September 5, 1905, 

 and put in a bottle, were soon thereafter found to have de- 

 posited three eggs, but they did not hatch. In these gravid 

 nymphs the tarsi were two- jointed. Antennae from sixteen to 

 twenty-four articulations beyond the basilar portion. Wings 

 large but no venation, fey September 8th they were moulted 

 and had the color of the adult female as per Fig. 1. 



These facts of early oval development occur undoubtedly 

 without the intervention of male and female, and indicate 

 that we have the data of parthenogenesis exemplified in this 

 species. 



