229 



HARRIS TO LECONTE. 



CAMBRIDGE, Sept. 17, 1853. 



I have changed my manuscript name of the new Cicindela 

 from the White Mountains from ancocisconensis (objectionable 

 on account of its length and because you tell me it has been 

 taken in Pennsylvania) to Catharina. This fine species seems 

 to approach to the European C. maritima, and like it is found 

 only near the Avater. As you are fond of Latin descriptions 

 I subjoin one that I concocted for this species. C. ( Catharina) 

 labro albo tridentato, media subprominulo ; supra aeneo-nigra 

 vel nigro-cuprea, viridi tenuiter marginata ; elytris e humerali 

 apicalique Integra, strigaque media, obtiqua, abbreviata, flexuosa, 

 cum lineola laterali confluente, albis ; ano purpureo. Long. 5, 

 5|- tin. 



I believe you will be able to make out the species by the 

 above description, especially as you have specimens before you. 

 By the way, I prefer calling the humeral and apical white 

 characters a c rather than a lunule, the former being nearer 

 to their true shape. A lunule proper tapers to a point at the 

 extremities. 



HARRIS TO LECONTE. 



CAMBRIDGE, Oct. 29, 1853. 



Now upon the genus Adrastus I have a remark to make. 

 Dejean puts both E. quadrimaculatus and E. limbatus in this 

 genus, the former having simple and the latter pectinated or 

 toothed nails, and the two differing from each other in several 

 other particulars. Twelve or thirteen years ago, having just 

 received Dejean's Catalogue, and being ignorant of the existence 

 and contents of Latreille's paper on the Elaters, I undertook to 

 examine carefully a pretty large collection of European named 

 species for the purpose of ascertaining on what characters 



