368 JOHN HAMILTON, M. D. 



73; Col. Am., 121. "Columt)ia, Madeiru, Azores, Algeria, Asia Minor, 

 Caucasia, Australia, New Zealaud." 



192. P. umbratilis Grav. — Tliis species "occurs in the easteru Atlantic regiou, 



Massachusetts, N. Jersey and Lake Superior," Horn. Michigan, Illinois, 

 Missouri; Europe, west Siberia (Tobolsk). T. xi, 184; Heydeu, 73. 

 Madeira, Syria, Caucasia. 



193. P. fuscipennis Mauu., Brach. 28, polit us j Fab.. Horn, Fauvel. — Unknown 



in our collections as native, but placed among the species of our fauua 

 by Dr. Horn on the assurance of Fauvel having a specimen from North 

 Carolina, and another from " Amer. Bor." Europe, Barnaul, west Sibe- 

 ria, Turcomania. T. xi, 186. Heyden, 74. "Algeria, Asia Minor, Cau- 

 casia, Persia." 

 Obs. — P. atratus J Horn, according to Mr. Fauvel is not atratiis Gruw, who 

 has applied to it the name perforatus proposed for it by Dr. Horn in litt, 



194. P. debilis Grav. — This species is found here. "It occurs everywhere iu 



the eastern Atlantic region, extending as far west as Kansas and Ne- 

 braska," Horn. Garland and Veta Pass, Col., at 9400 feet, Schwarz; 

 Santa Fe Canon, N. Mex., Snow. Europe, Africa, west Siberia. T. xi, 

 194; Heyden, 73. Asia Minor, Caucasia, Persia, northern China, Japan. 



195. P. varians Payk., var. agilis Grav., niger Mels. — (Var. agilis is the American 



form, as determined by Fauvel ; nearly cosmopolitan. In the northern 

 portions of the Atlantic region, extending westward to Washington and 

 California) Horn. Melsheimei took it in Pennsylvania. Europe. Both 

 forms occur in west Siberia. T. xi, 195; Heyden, 75. "Tenerifl'e, 

 Mediterranean, Asia Minor, Caucasia, Japan, Abyssinia, Cafraria." 



196. P. longicornis Steph., scybnlarius Nord. — Cosmopolitan. Dr. Horn has 



.seen specimens " from nearly every region in our fauua, except Arizona." 

 Nova Scotia, Harrington, in litt. Santa Fe Canon, N. Mex., Snow. Eu- 

 rope; Koultoc, east Siberia. T. xi, 196; Heyden, 75. 



197. P. discoideus Giav., ruficornis Mels. — This species, according to Dr. Horn, 



occurs everywhere in the Atlantic region, eiitending to Nevada and 

 Arizona. All Europe and the circum-Mediterran.an region, Turkestan. 

 T. xi, 196; Heyden, 73. "Mexico, St. Helena, Cape Verd, Canaries, 

 Madeira, Asia Minor, Bokhara, Abyssinia. Bourbon, Australia, Guate- 

 mala, Cuba." 



198. P. thermarum Auhe, pygmseus, angnstatus Kraatz. — Only three specimens 



were known to Dr. Horn to have been taken in our fauna, collected in 

 Missouri and the District of Columbia. Massachusetts, Blanchard, in litt. 

 T. xi, 196. "Missouri, Mexico. Cape Verd, Madeira, temperate and 

 southern Europe, Ceylon, East Indies, (Jhina, Japan, Java, Zanzibar, 

 French Guinea." 



199. P. quisquiliarius Gyll. — Mr. Fauvel's distribution is "New York to Mis- 



souri and to Michigan, Massachusetts, Illinois, Iowa, Kansas; Europe, 

 Mediterranean basiu, Asia Minor, Caucasia, China, Japan, Siam, Abys- 

 sinia, Zanzibar, Angola, the Gold Coast, Ashantee, New Caledonia.'' 

 Western and arctic Siberia, Turkestan. T. xi. 197; Heyden, 74. 

 QuadricoUis Horn, which Mr. Fauvel unites with this is a distinct species, as 

 examples seen in Dr. Horn's cabinet, sent from Europe as types of quis- 

 qniliarius do not correspond with those of guadricollis, which occurs 

 from New York to Michigan and Missouri, Horn. Tlie American dis- 



