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POMONA COLLEGE JOURNAL OF ENTOMOLOGY 



young forms. The forms obtained seem to be the winter broods according to 

 the peculiarity of the antennae which are /-articled on all of the specimens ob- 

 tained. This may also be due to the fact that no fully matured adults were 

 taken. \Miatevcr the case may be, I am only able to present the material as 

 it came to me. 



Antennae (Winter form) (Fig. 91 C) — 7-articled ; the comparative 

 lengths of the respective articles, beginning with the longest, are as follows: 

 7, 2, (3, 4), 6, (1, 5). All of the articles are normally hairy. 



Legs (Fig. 91 B) — Coxa and tarsus coequal, femur a little longer than 

 the tibia. Tibia nearly twice as long as the tarsus. Only a few hairs on the 

 tibia and tarsus. 



Pygidium (Fig. 91 A) — Furnished with six circumanal spines, but no 

 spines in evidence on any of the anal lobes. There are two small hairs on the 

 median lobes. On the first lobe is one stout spine and two such spines on 

 the second lobe. 



Male — The adult form has not been obtained. The pupa cases are about 

 1 mm. in length, cylindrical, and snow white. They are seen in great numbers 

 on the guava leaf in the photograph (Fig. 90). 



Food plants — Crawford found this very abundant on the Guava. It has 

 been reported on Nipa frnticaiis, and palms. 



Habitat — Collected by David Crawford on Guava in the neighborhood of 

 Guadalajara, Mexico. It was also taken by others from Demerara, Mexico. 



Figure 92. Ripersia smithii. 



Ripersia smitliii n. sp. 



Adult Female (Fig. 92) — Body decidedly long and narrow or elongate- 

 elliptical in form. Length 4 to 6 mm.; width 1.5 to 2 mm. Color, pinkish to 

 slate. The waxy covering is very fine and scarcely hides tlie color of the 

 body. The waxy ajjpendagcs are rudimentary and imi)crfect and the segmenta- 

 tion indistinct. When boiled in KOII the body first becomes pink and later 

 perfectly colorless and transparent. 



