148 ENTOMOLOGICAL NEWS. [June, 



The Eriodontinae are represented by three genera: 



A. S. E. the largest eyes ......... 2. 



A. M. E. the largest eyes ....... Anthrodiaetus. 



2. S. E. farther apart than M. E. .... Myrmekiaphila. 



S. E. not farther apart than M. E ...... Nidivalvata. 



In Anthrodicetus the S. E. are widely separated, the anterior 

 row is longer than the posterior row and recurved. One species, 

 A. unicolor Hentz is described from Alabama. Myrmekiaphila 

 has the S. E. widely separated, but the anterior row is not longer 

 than the posterior row, and is slightly procurved. One species, 

 M. foliata Atk. is described from North Carolina. Nidivalvata 

 has the S. E. close together or touching, anterior row procurved, 

 a little shorter than the posterior row. Two species are described, 

 both from North Carolina, by Prof. Atkinson: 



S. E. and P. M. E. touching, in one group . . . . N. marxii. 

 S. E. and P. M. E. distinctly separated N. angustata. 



The Theraphosinse may be divided into two tribes: 



Three claws to tarsi ......... Trionchi. 



Two claws to tarsi ......... Dionclii. 



The Dionchi have one genus, Eurypelma, in Western States, 

 of which five species are described. These are the genuine ta- 

 rantulas. As the species are extremely close, a key will not be 

 given, but the species arranged in two series according to locality. 

 California: E. californica Auss., E. rileyii Marx, E. leiog aster 

 Auss. Southern W. S. : E. hentzii Girard, La., Tex., Kans. ; * 

 E. steindacherii Auss. , N. Mex. E. kentzuis'the most common; 

 E. mordax Auss. is the same as E. hentzii Girard. 



The Trionchi are divided into two groups: 



Median groove longitudinal ...... Mecicobothri. 



Median groove transverse ....... Aepicephali. 



Group MECICOBOTHRI. 



Spinnerets four ...... . Brachybothriiun. 



Spinnerets six ............ 2. 



2. Eyes about equal in size, third article of spinnerets hut little longer 



than second ......... Atypoides. 



A. M. E. much smaller than others, third article of spinnerets much 



longer than second ........ Hexiira. 





Brachybothrium is represented by two species, one B. pacijicum 

 Simon from Wash. State, the other B. accentuation Simon from 



