.The Pselaphid^ of North America. 259 



Head as in ^V. tomcntosa, but less deeply and densely punc- 

 tured, especially in the middle, where it is to be seen in a 

 certain light as a small, fine, linear, longitudinal impression. 

 AntenncB with the ninth and tenth joints less trapezoidal, more 

 rounded, the eleventh less truncate at the base and more ovoid 

 than oval in comparison with the preceding species. Pro- 

 thorax less impressed at the sides near the basal angles, punc- 

 tuation feeble and sparse, the median basal puncture more 

 conspicuous. Elytra as in lY. tomentosa, inconspicuously 

 punctulate, and not as wide across the shoulders. Abdomen 

 sparsely punctulate, the basal segment rather shorter and the 

 carince farther apart than in the preceding species. The 

 sexual characters of the 5 on the third segment are similar, 

 but the median elevation is smaller, and the fourth segment is 

 narrowly produced at the middle of the tip. The ninth and 

 tenth joints of the antennae are longer than in the ?. 



Habitat. Southern States and north to Illinois and Ne- 

 braska. We regard it as a more southern variety of N. 

 tomcntosa. 



N. MARiTiMA, Casey. Dark red, pubescence not dense. 

 Length, i.o mm. 



Head sparsely punctured near the eyes, impunctate in the 

 middle. Antennae as in N. cincinata. Prothorax minutely 

 punctulate, strongly sinuate near the basal angles, basal 

 median fovea minute, the lateral ones deep, larger at one- 

 fourth of the length from the base. Elytra wider than long, 

 and at the apex four-fifths wider than the prothorax; disk 

 strongly convex, discal lines long, two-thirds of the elytral 

 length. Abdomen with the basal carinas short, including one- 

 half of the segmental width. ,? basal segment behind, deflexed 

 in the middle, the deflected part transversely excavated, its 

 lower margin refiexed, having in the middle a small tubercle; 

 second segment short, with an anteriorly arcuate excavation 

 in the middle third surrounding a strongly elevated carinate 

 tubercle which bears two seta?. Its posterior surface is feebly 

 and minutely tuberculate, the surface each side of the central 



