92 NORTH AMERICAN 



between the foveae, an equilateral triangle ; supra-antennal tubercnlations 

 rather large, somewhat elevated, very coarsely punctate; intermediate sur- 

 face feebly depressed ; anterior to a line across the tubercnlations the surface 

 becomes abruptly very strongly declivous, gradually becoming less so, and 

 more porrected at the edge of the very short, broadly rounded clypeus, the 

 surface of which is confusedly rugulose; occiput irapunctate; labrum strongly 

 transverse, paler in color, broadly and strongly eraarginate anteriorly, angles 

 very prominent, constricted at base ; palpi pale ; antennae as long as the 

 head and prothorax together, rather robust, basal joint not as long as the 

 next two together, eraarginate at tip, second distinctly longer than wide, 

 joints two to eight equal in width, nearly quadrate, except the second, ninth 

 equal in length, slightly transverse, oval, tenth slightly wider and longer 

 than the ninth, slightly transverse, oval, eleventh distinctly wider than the 

 tenth, elongate, as long as the three preceding joints together, obliquely 

 acuminate at tip ; under surface densely punctate, scabrous. Prothorax 

 very slightly longer than wide, nearly as in the preceding species, except 

 that the carina on each side from the posterior tooth is obsolete immediately 

 before tiie latter, but reappears at the middle of the disk as a second minute 

 tooth. Elytra nearly as in the preceding species, except that the punctua- 

 tion is very remote, even, minute, and distinct ; punctures of the rows be- 

 tween the sutural striae more distant ; humeri strongly but minutely toothed. 

 Abdomen convex, remotely and very minutely punctulate ; cusps at the base 

 of the first dorsal segment very robust and strongly elevated. Legs slender ; 

 claws minute. Length 2.0 mm. 



C:iniI»ri(Ige, Massachusetts (Schwarz). 



Tlie above-described specimen is probably a female. Just before 

 tlie larjre posterior spines of the pronotum there is a minute spongy- 

 l)ubescent fovea. Tlie emargination of the labrum and structure of 

 the antennae and liead abundantly distinguish this species from the 

 two preceding, and the first ciiaracter may prove useful in a future 

 classilication of our species. There are no carinae on the surface 

 of tiic (irst ventral segment as in Arthmius, but instead a distinct 

 rounded tubercle situated at the basal edge on each side. As far as 

 I can observe the present species is provided with a terminal posterior 

 tibial spur. 



I notice in looking over 31. Katliay's interesting descriptions of 

 Pselapliidae (Kevue d'Eutomologie, 1882), tliat this author gives the 

 name sinipfer to one of his species of Hatrisus ; as this name had 

 already been api)lied by Dr. LeConte to a North American species 

 of this genus (Proc. Am. Pliil. Sec. 1878, j). 598), it may perhaps be 

 proper to propose the name Raffrayi for the former. 



Pending a general revision of the species of this genus, which is 

 surely needed, and which it is the intention of the autlior to attempt, 

 l>rovided sufficient material can be obtained, it may be slated that 



