2 Jdiirnal of Entomology and Zoology 



Color of supposed Male — Ccphalothorax and maxilla', tlark red- 

 dish brown. Abdomen and legs light yellow brown. 



Color of supposed Iwiiiiilr mid J iivciiilc — All parts bright yellow 

 brown. 



Ccphalothorax subo\al, upper margin strongly conca\e at the 

 sides and tapering to a point at the median line. Sides convex at 

 upper edge; lower margin strongly convex. The ccphalothorax is 

 strongly chitini/ed, showing two small oval spots. The small 

 subo\aI area between the chitinized ccphalothorax and the abdomen 

 is soft with ti\e chitinized plates. 



On the dorsal surface of each abdominal segemnt are two muscle 

 depressions, while on the ventral surface the fourth, fifth and sixth 

 segments have dark colored plates near the segmental divisions 

 ^hich are used for muscle attachments; besides the two muscle 

 depressions. 



The book-lungs openings are found on the \entral surface of the 

 first abdominal segment, as is also the epigynum. 



The caudal appendage of the juvenile and female is inade up of 

 three small joints tapering to a blunt end. It is held in an Lipright 

 position abo\'e the abdomen. Cook in his description supposed 

 this form to be a female or juvenile; Krayselin considers it a dif- 

 ferent species, but upon close study of the rest of the organs of 

 this form it was finally decided that it was a juvenile and probably 

 a female, the supposition being held that the juvenile took the form 

 of the female, as is often the case, until the last few molts. The 

 epigynum of this form was extremely undeveloped, having only a 

 small epigastic furrow with depressions at either end. 



The caudal appendage of the supposed male is made up of two 

 stout joints to which is attached a heart-shaped body tapering to a 

 blunt apex. This body has deep pits both on the ilorsal ant! ven- 

 tral sides near the base. 



On the tibia of the first pair of legs are two long special setisoi^v' 

 hairs set in little pits. On the second, third anil fourth legs one 

 hair was found, also on the tibia. I'hese hairs are three-fourtfis 

 as long as the leg. 



The mouth parts consist of a pair ot strong mandibles and lab- 

 ium. Tile labium is placed between the two coxa' of the maxilhe. 



