80 Journal New York Entomological Society. [Vol. vm. 



pronotal lines; under surface minutely, densely and evenly punctulate through- 

 out, the surface somewhat shining. Length 3.3 mm.; width 1.4 mm. Arizona. 



lineatus, sp. nov. 

 In the type, the fourth ventral segment has a small and very shal- 

 low, transversely oval erosion at the middle and near the hind margin, 

 the fifth much longer than the fourth, unmodified on the disk, and 

 and very evenly rounded behind. This species is allied to the Cuban 

 Diplociehts costulatus but differs in its larger size and in having ten, 

 and not eight, longitudinal pronotal lines ; it also seems to differ from 

 the mus of Reitter, in the latter character. 



Diplocoelus Guer. 

 The species are few in number and are widely isolated structurally 

 among themselves, in fact constituting several subgenera ; they may 

 be outlined as follows : — 



Prothorax parallel or feebly narrowing from base to apex, broadly, evenly convex, the 

 basal angles not prominent but not at all rounded, the surface with three longitu- 

 dinal elevated lines at each side, of which the inner is feeble and incomplete ; 

 eyes moderately coarsely faceted ; elytra with very feebly impressed series of 

 close- set punctures, the intervals each with a series of suberect hairs, which are 

 short and inconspicuous, — becoming subobsolete in the European humerosus — 

 brown or blackish in color, elongate-oval, feebly convex, feebly shining, minutely, 

 closely punctured and densely pubescent, with coarse punctures interspersed on 

 the p'onotum, sterna and near the sides of the abdomen. Length 3.1 mm.; width 

 1. 18 mm. Indiana. [Diploccelus, in sp.] brunneus Lee. 



Prothorax subparallel and arcuate at the sides, finely serrulate as usual, the basal angles 

 minutely prominent and acute, the surface convex and devoid of sublateral ele- 

 vated lines except feeble traces, an arcuate excavated line at the apex and lateral 

 fourth quite distinct ; eyes very coarsely faceted ; elytra pointed behind, having 

 feebly impressed series of very coarse punctures, the intervals polished and with 

 single series of very long erect seta; ; general vestiture short and sparser, the sur- 

 face strongly shining ; sterna coarsely punctate, the abdomen finely, closely and 

 evenly. Length 2.0-2.3 mm.; width 0.8-0.92 mm. Florida, Mississippi and 

 Texas (Houston). [Marginus Lee.] rudis Let. 



Prothorax narrowed in front, the sides nearly straight, the hind angles prominent ex- 

 ternally, covering the base of the elytra; surface coarsely punctured, with three 

 eleTated lines at each side, becoming subobliterated in front ; elytra with series of 

 coarse punctures, the single interstitial pubescent lines composed of short and 

 coarser hairs. Length [3.25 mm. ] Michigan. [Subgenus nov. ?] 



angusticollis Horn 



The last of these species is unknown to me, but the prominent 

 basal angles of the prothorax seem to be foretold in rudis. Brunneus 

 is a close derivative of the European fagi, but is more slender in form. 



