The Pselaphid^ of North America. 53 



slender, third to seventh joints moniliform; eighth to tenth 

 gradually wider, equal in length; tenth twice as wide as long; 

 eleventh much wider, a little longer than wide, truncate at the 

 base, ovate, obtuse. Maxillary palpi with the last joint nearly 

 twice as long as wide. Space behind the mentum hairy. 

 Prothorax widest at the middle, length and width equal, wider 

 than the head; sides, anteriorly, strongly arcuate toward the 

 neck, convergent and perceptibl}- sinuate to the base; the neck 

 is about three-fifths as wide as the base; disk very convex, 

 impunctate, sulcus narrow in the middle where it touches a 

 deep oblong fovea, nearly reaching the base, and connecting 

 with the deep lateral pubescent fovetc. Elytra^ across the 

 prominent shoulders, slightly wider than the prothorax, the 

 length being about one-half greater ;verv convex, impunctate; 

 sutural lines close together, nearly straight, the discal lines 

 narrow, more than one-half as long as the elytra. Abdomen 

 narrower than the elytra, convex, impunctate, sides anteriorly 

 parallel, with two short carinas at the base; the three basal 

 segments are gradually shorter. Legs long. On each side 

 of the anterior limit of the metasternum is a transverse, 

 pubescent, fovea; prosternal fovea large, transverse, c, inter- 

 mediate femora enlarged, lunate; antennal club more robust. 

 Habitat. Florida. 



EuPLECTUs, Leach. 



TABLE OF THE SPECIES OF EUPLECTUS. 



1- Pronotum without longitudinal sulcus. 



2- Abdominal dorsals not carinate. 



Head longer than wide, last antennal joint acuminate. Length 



1.6 mm. leviceps. 



21 Two dorsals carinate. 



3- Pronotal foveae connected by a transverse sulcus. 



Head -wider than long; terminal antennal joint elongate, acumi- 

 nate. Length 1.6 mm. crinitus. 



Head longer than wide, the terminal antennal joint obtuse-ovate, 

 penultimate joints sharp-edged disks. Length 1.4 mm. 



decortis. 



