242 S. FRANK AARON. 



name, being but very sligbtlj produced angles. In this last character 

 alone the species does not resemble sexdentata as described, but the form 

 of the outer teeth in all the species varies considerably in form, and prob- 

 ably this is an extreme form. The lateral margin is straight. Wings 

 hyaline, a little clouded ; 10 mm. The specimen is rather long and 

 slender, hardly tapering at the apex. 



Clirysis pennsylvauica (Lej).) Bnill^, Nat. Hist, des Ins. Hyiu. iv, 24, 



1846. 

 One specimen from Florida (Philadelphia, BruUe). Deep blue with 

 dull purple and bright green reflections, elegant reddish purple on the 

 abdominal sutures. Basin of face punctured, a narrow, smoothed space 

 in the centre. Head and thorax with the punctures somewhat separated, 

 with some scattered finer punctures on the prothorax. Abdominal punc- 

 tures well separated, equal. Pits rather large, deep, somewhat confluent 

 on the dorsum, distinct and separated on the sides ; pits forming the 

 groove, which ends on each side near the base of segment. Wings sub- 

 hyaline, a little clouded, the nerves somewhat rufescent ; 10 mm. S . 

 The mesothoracic interlobular lines are called crenulated, by Brulle, on 

 account of being cut by the punctures. 



Chrysis siuarag<lula Fabr., Ent. Syst. ii, 239, 1793 ; Dahlb., Hym. Eur. 



ii, 337. 

 Five specimens from the localities : Pennsylvania, Delaware, North 

 Carolina, Florida and Kentucky. From emerald-green with blue reflec- 

 tions to deep blue and purple with green reflections ; the abdominal 

 sutures bright reddish purple. Basin of face punctured, a little smoothed 

 in the centre. Head and thorax closely punctured, on some portions the 

 punctures are very slightly separated. Abdomen with the punctures 

 about equal and equally separated over the entire surface of the first 

 and second segments ; third segment with the punctures a little smaller 

 and closer ; a patch of fine, close punctures on the middle of the posterior 

 margin of the anterior area just above the pits. Pits rather large, shal- 

 low, distinct, in some specimens ; in others subcoufluent on the sides 

 forming the rather shallow groove which ends on the sides near the base 

 of segment. The apical teeth vary somewhat in relative position in dif- 

 ferent specimens. Wings subhyaline ; 13-15 mm. The largest North 

 American species representing this genus. 



Clirysis inaeqiiidens Dahlb., Hym. Eur. ii, 334, 1854. 

 This species is not in the collection and is unknown to me. Dahlbom's 

 description reads as follows : 



