386 PROCEEDINGS OF THE ACADEMY OF [May, 



Measurements {in millimeters). 



Homestead, Fia. 



Type. Paratype. Paratype. 



Length of body 87 . 5 87 . 4 88 . 5 



Length of head 4.5 4.3 4.2 



Length of prothorax 3. 3.2 3. 



Length of mesothorax 20 . 5 20 . 6 21.4 



Length of metathorax (including median 



segment) 18.5 18.3 18.7 



Length of abdomen 41. 41. 41.2 



Length of cephahc femur 22.3 24. 23.8 



Length of median femur 18.2 19.4 19.5 



Length of caudal femur 23.3 25. 25.3 



Miami, Detroit, San Pablo, 

 Fla. Fla. Fla. 



9 & d" 



Allotype. Paratype. 



Length of bodv 92 . 6 86 . 6 69 . 6 



Length of head 5.1 4.5 3.5 



Length of prothorax 3.2 3. 2.7 



Length of mesothorax 21. 20.5 15.8 



Length of metathorax (including median 



segment) 17.2 18.6 13 .3 



Length of abdomen 46.1 40. 34.3 



Length of cephalic femur 23 . 8 22 . 18.5 



Length of median femur 18.4 19.1 15.3 



Length of caudal femur 23 . 8 24 . 7 20 . 



The present authors have recorded a male of this species, taken 

 at San Pablo, Fla., August 13, 1905, as M. tenuescens, at that writing 

 not recognizing it as distinct from individuals of that species in the 

 same series. A series of one adult female and eleven nymphs taken 

 at Miami, Fla., March 28, 1910, have also been recorded as that 

 species. The above-measured five males and one female constitute 

 the known series of adult specimens of brachypyga, the San Pablo 

 specimen showing that there is considerable variation in size, regard- 

 ing which our series is too small for us to say whether it is geographical 

 or individual in character. We consider the two additional Home- 

 stead specimens and the single Detroit individual, paratypes. The 

 differential characters show almost no variation, there being but a 

 slight amount of proportional difference in the length of the eighth 

 dorsal segment. The distal margin of the ninth dors&;l abdominal 

 segment varies from arcuato-emarginate to obtuse-angulate emargi- 

 nate. In coloration the Homestead and Detroit individuals are 



