THE MOUNT DESERT REGION 155 



D. piscATRix Lac. (15202). Witches Hole, July 15; The Tarn, 

 July 28. Shows considerable color variation. 



D. suBTiLis var. fulgens LeC. (15203). If this variety is 

 valid, there is a record of Bar Harbor, July 24. 



D. SUBTILIS Kunze. (15203). A single specimen taken at Bea- 

 ver Dam Pond flying, Sept. 24, '37 ; Bar Harbor, July 20-29. 



D. RUGOSA LeC. (15206). The Tarn mating in large numbers 

 on Pontederia cordata, July 28, '37. This is the only record 

 on the Island. No variation sho^\ni. 



D. DiSTiNCTA LeC. (15211). Bar Harbor, June 11. 



D. pusiLLA Say (15213). Witches Hole, June 13. 



D. METALLicA Alireiis (15215). Bar Harbor, June 11. 



D. EMARGiNATA Kby. (bUmpressa Melsli.) (15216). Penikese 

 on wild mustard, June 4; Upper Hadlock Pond, June 10; 

 Station F244, June 18. 



D. RUFA Say (15218). Rhodora Meadow flying. May 25; 

 Witches Hole, June 13 ; Half Moon Pond sweeping the shore 

 bushes, June 18. 



D. LiEBECKi Schffr. (20163). Witches Hole mating, July 28 

 and Upper Breakneck Pond, Aug. 3. In white water lily 

 flowers both places. Show no variation. Scarce. 



Orsodachne Latreille 



0. ATRA (Ahrens) (15219). With one exception this and the 

 next four are common on 'pussy willows' and extend on 

 into June. They grade into one another to a marked degree. 

 The exception is A. hepatica which is not common and easily 

 distinguished. Station F301; Mt. Desert (Br.), June 16. 



0. ATRA var. HEPATICA Say (15219b). Witches Hole flying, 

 June 2. 



0. ATRA var. cHiLDRENi Kby. (15219c). Station F240 (Br.), 

 May 11. 



0. ATRA var. TIBIALIS Kby. (15219d). Bar Harbor from catkins 

 (Br.), May 11. 



0. ATRA var. TRiviTTATA Lac. (15219e). Stations F237, F242, 

 F300 and F301. 



