394 PROCEEDINGS OF THE NATIONAL MUSEUM. 



28. ASEMOPLUS, new genus. 

 $, without device; O7t/\.a, armor.) 



Body resembling Conalcaea iu general appearance, rather slender, 

 compressed cylindrical, feebly and sparsely pilose. Head moderately 

 large, not prominent, with feebly tumescent genae, the vertex well 

 arched, raised but little above the general level of the pronotum, the 

 fastigium rapidly descending, the face rounded and a little retreating ; 

 eyes separated widely, the fastigium depressed only between them and 

 very feebly, passing insensibly into the broad and equal frontal costa, 

 which is yet narrower than the interspace between the eyes, rounded, 

 fading below the ocellus; eyes large, moderately prominent, very broad 

 oval, the front border subtruncate, half as long again as the anterior 

 infraocular portion of the geuae ; antennae very slender, longer than the 

 head and pronotum together. Pronotum short, subequal, the metazona 

 flaring somewhat, transversely convex, the disk passing insensibly into 

 the subvertical lateral lobes, with no sign of lateral carinae, the median 

 carina slight and occurring only on the metazona; fore and hind mar- 

 gins both truncate, the latter feebly and broadly emarginate; prozona 

 coarsely and sparsely punctate, transverse, almost twice as long as the 

 finely and densely punctate metazona, the transverse sulci of the former 

 distinct, the postmedian more or less sinuate. Prosternal spine erect, 

 stout, subconical; meso- and metastethia together distinctly (male) 

 or slightly (female) longer than broad, the interval between the meso- 

 sternal lobes quadrate (male) or transverse and as broad as the lobes 

 (female); metasternal lobes rather (male) or distinctly (female) distant, 

 but in neither case more distant than the width of the frontal costa, the 

 portion of the thorax behind the metasternal lobes only a little more 

 than half as broad as the inetasternuin, but more than twice as broad 

 as long. Teginiua linear, lateral, shorter than the pronotum. Hind 

 femora not very long, but slender, the inferior geuicular lobe pallid and 

 immaculate, the hind tibiae with ten to twelve spines in the outer 

 series. Abdomen of male feebly clavate apically and somewhat up- 

 turned, the lateral margins of the subgenital plate strongly ampliate 

 at base, apically produced and acutangulate, but with no tubercle; 

 cerci substyliform ; abdomen of female tapering regularly to a pointed 

 tip, the ovipositor normally exserted. 



This genus is represented by a single species, found only in the 

 extreme northwestern United States. 



ASEMOPLUS MONTANUS. 



(Plate XXVI, fig. 7.) 

 Bradynotes montanus BRUNER!, Can. Ent., XVII (1885), pp. 16-17. 



Body very dark i eddish brown, marked with black and testaceous, 

 beneath luteous. Head olivaceo-luteous, infumated, above and on the 



