1919J Howe — Dragon-Flies from Wareham, Mass. 67 



31. Epicordulia princeps (Hagen). July 3 to 26. "Common at 



times." 



32. Tetragoneuria cynosura (Say). Maj' 3 to Aug. 3. Several 



specimens. 



33. Tetragoneuria cynosura simidans Mutt. May 3 to July 9. 



Several specimens. 



34. Dorocordulia lepida (Hagen). June 28 to Aug. 3. Several 



specimens. 



35. Somaiochlora tetiebrosa (Say) . Aug. 2 to 7. Several specimens. 



36. Libellula (Ladona) exusta Say. May 7 to July 9. Several 



specimens. 



37. Libellula auripennis Burm. July 4 to 30. Several specimens. 



38. Libelhda cyanea Fabr. June 28 to Aug. 7. Several speci- 



mens. The females of the series approach very closely 

 L.flavidaWxW. 



39. Libelhda incesta Hagen. July 6 to Aug. 5. Several speci- 



mens. One specimen shows a slight approach to L. flavida 

 Williamson in the number of subtriangle cells. 



40. Libellula pulchella Drury. June 20 to Aug. 8. Several speci- 



mens. 



41. Libelhda quadrimaculata Linn. May 31 to June 28. Several 



specimens. 



42. Libelhda semifasciata Burm. May 3 to Aug. 7. Several 



specimens. 



43. Plathemis lydia (Drury). May 31 to July 5. Several speci- 



mens. 



44. Perithemis domitia tenera (Say). July 18 to Aug. 9. Several 



specimens. 



45. Nannothemis bella (Uhler). July 8. Several specimens. 



46. Erythrodiplax berenice (Drury). July 8 to 10. Several 



specimens. Confined to salt marshes. 



47. Erythemis simplicicollis (Say). July 8 to 30. Several speci- 



mens. 



48. Sympetrum costiferum (Hagen). Aug. 6. One specimen. 



49. Sympetrum rubicundidum (Say). June 17 to July 30. Several 



specimens. 



50. Sympetrum semicindum (Say). July 30 to Aug. 7. Several 



specimens. 



51. Sympetrum vicinum (Hagen). June. One specimen. 



