20 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 95 



Lucien Harris, Jr., in 193 1 said of Cecropterus celliis that this rare 

 butterfly has been taken at Macon, Ga. 



In 1932 Carlos C. Hoffmann said that the type specimen of Rliab- 

 d aides cellus me.xicana, described by Draudt in 1922, had been sent 

 the latter by Roberto Miiller ; it came from Orizaba, Vera Cruz, where 

 it had been collected by Cayetano del Toro. 



In his " Butterflies of the District of Columbia and Vicinity " 

 published in 1932 the author recorded Cecropterus cellus from the 

 District of Columbia, June 25, 1889 (Ernest Shoemaker) ; from 

 Difficult Run, Fairfax County, Va., June 23, 1920 (Ernest Shoe- 

 maker) ; and from Collington, Md., July 30, 1930. He said that this 

 species has a wide range throughout the South, but is nowhere very 

 common. It is to be sought for along the sides of streams and in the 

 immediate vicinity of swamps. The species was illustrated by photo- 

 graphs of the upper and under surfaces of a specimen without data. 



In August 1934 the author published a brief notice of the discovery 

 of RJiabdoides cellus in some numbers in the vicinity of Washington 

 and gave a short account of the eggs and early stages. The eggs and 

 larvae were found in numbers on the hog-peanut (Falcata pitcheri). 

 A new form, RJiabdoides cellus var. leilae, was described. In a note 

 published in October 1934 the locality was given more specifically as 

 near Great Falls, Md. 



FIELD NOTES 



Our observations on this butterfly were made in the woods just 

 north of the unpaved portion of the Conduit Road, i.i miles southeast 

 of Great Falls, Md., and slightly more than half a mile west of the 

 point where the paved road leaves the Conduit Road and turns north 

 up the hill. Here a small stream from the woods passes under the 

 conduit. A few hundred feet up this stream north of the conduit there 

 is a cleared spot a hundred feet or so in diameter, along the west 

 side of which, at the base of a steep hillside, the stream broadens into 

 a little marsh perhaps 20 feet across. It was along the edges of this 

 little marsh and in the marsh itself that the great majority of the 

 butterflies were found. 



We first met with this butterfly on May 30, when we saw and 

 captured a single individual. On June 3 we caught seven, on June 10 

 eight, on June 17 ten, and on June 24, when we were accompanied by 

 Dr. George W. Rawson, of Detroit, Mich., we met with no less than 

 twenty. On July i we found only four, all of them battered. Two 

 of these were taken home alive, the last dying on July 3. 



