64 THE NORTH AMERICAN SPECIES OF DROSOPHILA. 
The Palearctic forms have been tabled and discussed by Becker (1908, 
Mitt. zool. Mus., 4). The four North American forms may be separated 
by the following key: 
1. Four acrostichal rows in front of the suture; usually with a dark spot at tip of 
FLAY L572) RAS le Ras Mae ee MaRnE Ut ghasaAe ol Eh OV te PsN ERI 0, Bd 2) 2 
Two acrostichal: rows; wings unspotted | oo)) 4 Gite ee oe cane Fatale 3 
2 VE OMIALC AUEITVT ALG. Ve Ns S621 ity la ute | 7) SR 2 SU ge Rs terminalis 
One large trumierall se oie ee aie od ea Na Shs Glade Gh RE AIS ee a ane em adusta 
3. Dark brownish, pollinose on mesonotum; palpi yellow.................... graminum 
Yellowish, not pollinose;: palpi dark. 1.05600 2A a vittata 
Scaptomyza terminalis Loew. 1863. Berl. ent. Zeit., 7, 32 (as Drosophila). 
Drosophila apicata Thomson. 1868. Eugen. Resa., 597. 
Specimens examined: Sitka, Alaska (Loew’s type); Mount Constitution, 
Vashon, Winlock, Washington (A. L. Melander); Moscow Mountain, 
Idaho (A. L. Melander); Claremont, San Mateo County (Baker), Muir 
Woods (J. C. Bradley), Eureka (H. 8. Barber), Palo Alto (J. M. Aldrich), 
California; Kaslo, British Columbia (R. P. Currie); Vancouver; Mount 
Washington, New Hampshire (Mrs. Slosson); Eastport, Maine; Montreal, 
Quebec (Melander collection); Middletown, New York (C. R. Crosby, 
“from cabbage”’). This species is extremely variable in size, color, and 
wing-markings. There may be more than one species included. This 
species is very close to the published descriptions of S. uncpunctum Zetter- 
stedt, from northern Europe, and may be identical with it. 
Scaptomyza adusta Loew. 1862. Berlin ent. Zeit., 6, 231 (as Drosophila). (Plate 2, 
fig. 1.) 
Specimens examined: Hanover, New Hampshire; Norwich, Vermont; 
Monument Beach, Woods Hole, Nantucket, Fall River, New Bedford, 
Massachusetts; Cold Spring Harbor, New York, Staten Island, New York; 
New Brunswick, New Jersey; Bloomington, Indiana (F. Payne); Flat 
Rock (F. N. Duncan), Algonquin (D. W. Coquillett), Illinois; Lawrence, 
Kansas (E. 8. Tucker); Colorado Springs (E. 8. Tucker), Boulder (T. D. A. 
Cockerell), Colorado; Cabin John Bridge, Plummer’s Island, Maryland 
(R. C. Shannon); Washington, District of Columbia; Dead Run (R. C. 
Shannon), Arlington, Richmond, Virginia; Greenville, South Carolina; 
Lakeland (C. W. Metz), Tampa (C. W. Metz), Biscayne Bay (Mrs. Slosson), 
Florida; Gulfcrest, Kushla, Alabama; Opelousas, Louisiana (Melander 
collection); Austin, Texas (W. M. Wheeler). Recorded from Bermuda by 
Johnson. 
Scaptomyza graminum Fallén. 1823. Dipt. Suec. Geomyz., 8 (as Drosophila). 
Drosophila flavipennis Zetterstedt and D. sordida Zetterstedt. 
Specimens examined: Germany (U. 8S. Nat. Mus.); Hanover, Isle of 
Shoals, Mount Washington (Mrs. Slosson), New Hampshire; Norwich, 
Vermont; Monument Beach, Nantucket, Woods Hole, Fall River, Massa- 
chusetts; Cold Spring Harbor, Staten Island, Ithaca (S. W. Frost), New 
York; Fort Lee, Paterson, New Jersey; Cabin John Bridge, Plummer’s 
Island, Chesapeake Beach, Maryland (R. C. Shannon); Rock Creek, 
District of Columbia; Dead Run (R. C. Shannon), Great Falls (N. Banks), 
Arlington, Richmond, Virginia; West Virginia; Bloomington, Indiana 
(F. Payne); Chicago, Illinois (Melander collection); Clarksville, Tennessee 
(U. S. Nat. Mus. coll.); Greenville, South Carolina; Kushla, Alabama; 
Opelousas, Louisiana (Melander collection); Lakeland, Florida (C. W- 
Metz); College Station, Texas (U.S. Nat. Mus.); Lawrence, Kansas (E. 8S. 
Tucker); Potlatch, Idaho (J. M. Aldrich); Almota, Pullman, Washington 
