140 GEO. H. HORN. M. D. 



Related to granulato but smaller, more convex, with relatively coarser 

 tubercles and a more nearly square thorax much more coarsely dentate 

 at the sides. 



One specimen, Tampa, Fla. 



S. obscura n. sp. — Piceous opaque, facies of diminutive Cicones marginalin. 

 Head very coarsely granulated. Thorax nearly one-half wider than long, base 

 slightly wider than apex, sides feebly arcuate, margin narrowly explanate, fim- 

 briate with short stifl' hairs which are directed anteriorly, hind angles obtuse, 

 disc convex, roughly granulate. Elytra not wider than the thorax, a little more 

 than twice as long, disc with suture and four costse finely elevated and bearing 

 short, semi-erect, curved setae, the intervals coarsely, biseriately punctate, the in- 

 terval between the margin and costa with one series of punctures, these closely 

 placed. Body beneath opaque, scabrous. Length .05 inch; 1.25 mm. 



The smallest species known to me. It is related by its costate elytra 

 to laticollis and varitgata, and agrees with the latter in the absence 

 of an elevated line on the thorax, but diifers in its much shorter and 

 broader form and the absence of color ornamentation on the elytra. My 

 specimen has a trace of a paler spot near the base of the first costa. 



One specimen, District of Columbia. E. A. Schwarz. 



DITOMA Illig. 



I>. qiiadricollis n. sp.— Dark brown, opaque, form depressed, parallel. 

 Antennae ferruginous, ninth joint scarcely wider than the eighth. Head rather 

 coarsely granulate, epistoma pale. Thorax wider than long, sides straight, the 

 margin serrulate, base and apex equal, disc with two costae each side the outer 

 joining the apical and basal margins, the inner starting at the base curved at tip 

 near the apex ; two short prescutellar costae which converge in front. Elytra very 

 little wider than the thorax, suture, margin and four discal costse moderately ele- 

 vated, the intervals coarsely biseriately granular. Body beneath paler, opaque, 

 more finely granulate and sparsely pubescent. Legs ferruginous. Length .10 

 inch ; 2.5 mm. 



This species is closely related to quadriguttuta and ornatu^ which are 

 maculate on the elytra. Independently of color the former species is 

 broader, the sides of the thorax are distinctly arcuate and scarcely per- 

 ceptibly crenulate ; the latter species has the thorax distinctly narrower 

 behind. In the present species the base of the thorax is less arcuate, so 

 that the hind angles are closer to the elytral humeri. 

 Collected by Morrison in North Carolina. 



I.ASC4H«OTUS Erichs. 



L.. vegrandis n. sp. — Form slender, dark brown opaque, elytra somewhat 

 paler at base. Antennae rufous. Head coarsely moderately closely punctate. 

 Thorax longer than wide, sides nearly parallel and straight, anterior angles rather 

 obtuse,- posterior angles sharply rectangular, middle of disc broadly but vaguely 



