MONOTOMID/E IO3 



sinuato-truncate but not impressed at apex, finely, rather sparsely 

 punctate; eyes moderate and rather prominent, behind the middle and at 

 scarcely more than twice their length from the base, the tempora feebly, 

 evenly converging and evenly and very moderately arcuate from the 

 eyes to the base; antennae nearly as in' the preceding but with a shorter 

 third joint, this being not longer than the next two; prothorax a fourth 

 longer than wide, the sides straight and subparallel, being but just visibly 

 converging, rounded apically, the basal angles broadly rounded; punc- 

 tures very fine and sparse, evenly distributed: elytra nearly as in cylin- 

 dricus, but without scattered punctures at base; pygidium and supple- 

 mentary segment as in the preceding, the abdomen also nearly similar; 

 anterior tibiae gradually broadening from base to apex but scarcely at all 

 everted externally at apex. Length 3.6 mm.; width 0.75 mm. North 

 Carolina (Southern Pines), Manee. 



The male type of this species much more closely resembles the 

 female of cylindricus to external view than it does the male of either 

 that species or longiceps, and the head, with more posterior position 

 of the eyes, is very different. In the type, the head has, before the 

 middle, two small and rounded impressions, arranged transversely 

 and separated by a third of the total width. Cylindricus of LeConte, 

 is a very peculiar species, having but little of the general habitus of 

 the other species of the genus and is evidently representative of a 

 group containing possibly others besides those here mentioned.* 

 In this cylindricus section, the species are all very rare individually. 



Subfamily TISIPHONIN^: 



Tisiphone Reitter. 

 Smicrips Lee. 



It is with some confidence that I follow Dr. Sharp in assigning to 

 Tisiphone a place in the Monotomid series, for most of its char- 

 acters, as well as a certain general habitus, harmonize very well. 

 Here it is the very different and purely 3-jointed antennal club, 

 oblique anterior acetabula, separation of a large epistoma from the 

 front by a transverse arcuate suture, and the apparent absence of a 

 supplementary pygidium in the male, that form the most puzzling 

 features to the systematist in advocating this relationship, but we 



* This group is distinguished primarily by the spinose outer margin of the inter- 

 mediate tibiae and will perhaps include also bipunctatus Say, although the latter does 

 not have quite so exceptional a facies as the others. The group is evidently of sub- 

 generic value and I would suggest the name Syringobidia (n. subgen.) for it, with 

 Rhizophagus cylindricus Lee., as the type species. 



