380 JOHN IIAMILTOM, M. D. 



322. Murmidius ovalis Beck.. Centocerus advena Sclnippett. — Probably intro- 



(luoed from Europe. This njiimte insect, only .05 inch, lonjj. hns been 

 ol).servcd several times in this country ; it seems to live in mouldy straw. 

 Pr. 1876, 270. My native specimens are from Washington. D. C Lake 

 Ponchartrain (Louisiana), Summers. Sitkha (Mann. 1843), California. 

 Japan. In Europe it mostly occurs in cargoes of ground-nuts (arachides), 

 and is probably African in its origin, Fauvel. 



RHYSODID^. 



323. Rhysodes exaratus Serv., americanus Lap., aratiis Newm. — From New 



York and Michigan southward to Georgia and westward lo Missouri and 

 Iowa, though it is not common. I have met with it here only once. 

 France, Germany, Austria, Russia, Caucasia. T. v, 162. The above 

 synonymy is permitted to stand on the authority of Cat. iv, though Mr. 

 George Lewis says exaratus Serv. is only European, and is not American, 

 An. and Mag. Nat. Hist. 1888, p. 76, et seq. 



CTJCUJIDM. 



324. Silvanus surinamensis Linn., var. hicornis T<lr., G-dentatus. frumentarius, 



cursor Fab. — Cosmopolitan. Mr. Fauvel describes a species under the 

 name wercator, confounded in French collections with surinamensis 

 (Eev. 132 and 163). which very probably is in like manner, mixed with 

 it here ; the appearance, form and color are the same, but it may be dis- 

 tinguished by: the head longer, narrower, obconic ; eyes much larger, 

 nearly reaching the posterior angles; sides of front unidentate ; an- 

 tennae with the penultimate joiut more transverse, the thorax narrower 

 and the dorsal sulci parallel; elytra longer, narrower, with the margins 

 less sinuate near the base. Cosmopolitan also. 



325. S. bidentatus Fab. — Heydeu, 95. --Everywhere in the Uiiited States and 



Canada under bark. Europe to Japan, western Siberia. 



326. Cathartus gemellatus Duv.. quadricoUis J Casey, cassise X first ed. New 



York, Georgia, Florida. Cuba, Morocco, Europe. Probably cosmopolitan. 



327. C. cassise Reiche, gilse Casey.— Arizona. Cuba, Morocco, Europe. Equally 



cosm()])olitan. 



328. C. advena Waltl., musmornm Zieg. — Many places in North America under 



bark and in articles of commerce. Probably cosmopolitan. 



329. Nausibius clavicornis Kugel, dentatas Marsh, major Zimm. — Generally 



distributed in North America; not found every place. Cosmopolitan. 



330. Prostomis mandibularis Fab., americanus Crotch. — Taken by Mr. Crotch 



on Vancouver Island. "Oregon, California, Nevada," Casey. Europe. 

 T. V, 74 ; T. xi, 76. 



331. Pediacus fuscus Er., planus Lee, s(t6carina<MS Mann., 1852-53. — Canada. 



Michigan, Lake Superior, Hudson Bay (Lee. Cat.), Nebraska, Colorado, 

 New Mexico, Alaska. Central Europe, Italy. P. vii, 73; T. xi. 79. 

 Amurland (Chabarofka). Heyden, 1886. 

 W>-1. P. depressus Hbst., var. subglaber Lee — North Carolina, LeConte; Mich- 

 igan, Lake Superior, Veta Pass, Col., at 9200 feet, Schwarz. Pennsyl- 

 vania, Vancouver Lslaud, mihi. V. vii, 73; T. xi, 79. Central and 

 northern Europe. 



