The PsELAPHiDyE OF North America. 223 



thighs shghtly compressed laterally, grooved for the recep- 

 tion of the tibiae, which latter are thicker at the distal end and 

 grooved externally for the reception of the tarsi. Tarsi cylin- 

 drical, joints connate (three in number?) with a single strong 

 claw. The male has the last ventral segment sinuate in the 

 middle and the venter more concave. 



Found in eastern Tennessee by Fr. Fuchs in 1866. Also 

 occurs at Williams, Arizona. (Wickham). 



A. Fucnsii, var. californicus, Brend, This differs in 

 the form of the head, which is just perceptibly wider and 

 seemingly shorter. The antennal fovese are limited anterior 

 to the eye, while in the specimens from Tennessee they are 

 drawn up backward above the eye, gradually becoming shal- 

 lower. The funicle of the antennje is darker in A. califor- 

 nicus^ the first joint constricted near the base, with the root 

 partly exposed, discernible in the bottom of the fovea; second 

 joint as in A. fuchsii, but with the outlines concave. Dis- 

 covered by my friend Carl Fuchs at Los Angeles, California. 

 Occurs in March. 



SYSTEMATIC OUTLINE OF THE FAMILY PSELAPHID^. 



I. Antennae approximate, inserted beneath prominent, porrected, contiguous, 

 tubercles. {Pselapkim). 

 fli Posterior coxae, distant, tarsi with two equal claws. 



b^ Maxillary palpi with the last two joints similar in form like the cotyle- 

 dons of an acorn, without appendages. 



Antennae robust moniliform the last two joints of the maxillary 

 palpi compressed, fusiform. - - Ceophyllus, Lee. 



Antennae with the last three joints forming a club, the last two 

 joints of maxillary palpi lunate, the terminal one longer. 



Cedius, Lee. 



b^ Antennae clavate, maxillary palpi with the last three joints bearing lateral 

 setiform appendages. 



Last three joints of maxillary palpi triangular, appendages short. 



Tmesiphorus, Lee. 



Last three joints of maxillary palpi oval-transverse, appendages 



verv long. . . . . . Ctenistes, Reiehenb. 



