PHILIP P. CALVERT. 73 



jNFr. Kirl)ysavs (Ann. Mag. Nat. Hist.— 6— xiv, p. 2()8, Oct. 1894) 

 " ochracea, Burin., should have only two rows of post-triangular cells, 

 instead of one or more rows of three, followed by one or inore rows 

 of two increasing, as in typical Trithemis". This statement was 

 probably based on Burmeister's placing it in a group having "Gleich 

 anfangs zwei Zellenreihen in deni Felde hinter dem Dreieck der 

 Vorderfliigel" (B. p. 854). The same cause probably led Mr. Kirby 

 to refer ochracea Hag. (nee. Burm.), fervida Erichson and justinn 

 Selys to pulla Burm. The above description of the two types of 

 B. shows, however, that this character is subject to individual varia- 

 tion, as I can find no reason for regarding these two individuals as 

 of different species. The three names quoted are therefore, I believe, 

 to be referred back again to ochracea Burm., as they were given by 

 Hagen (Proc. Bost. Soc. Nat. Hist, xviii, p. 81, 1875) and Kirby 

 (Cat. Odon. p. 19, 1890). From the description of L. pulla B., 

 given post, it will be seen that it closely approaches ochracea B. 

 Whether the two are really di.stinct is a question yet to be decided 

 by a revision of these American species which have been referred to 

 Trifhemis Brauer. 



39. I..ibelliila castaiiea B. P. 854. [f^i/mpetnim ?] 



castanea, alarum hyalinarum basi umbra castanea, posticarum 

 majori; stig-matibus elong-atis cinereis. Long. 1" IV". 

 Von Bahia. Ebenda. 



Two males in the M. C. Z., both with printed pin labels "Win 

 them" ; one with the written pin -label " L. castanea Br. % and 9 

 * Bahia" (I found no female to which this label refers) ; the other 

 with the written pin-labels " Brasil" and " L. castanea * Burm.," 

 the last one in Hagen' s hand. 



A description of the types follows : 



% (types). Almost entirely reddish-hiovvii, labium and first and second femora 

 darker. Vertex with a very narrow tii), wliich is bifid. Eyes in contact for a 

 very shctrt distance (one-third to one-fourtli of the length of the occiput). 



Hind lobe of prothorax almost as wide as the middle lobe, subrectangular with 

 the angles rounded off, hind margin with but the slightest indication of a median 

 notch. 



Hind tibia with 8-9 spines on the anterior (outer) row, 8-9 on the posterior 

 (inner). 



Superior abdominal appendages as long as 9 -|- 10. red. curved somewhat down- 

 ward in the basal half, thickened before the apex, third fourth with an inferior 

 row of .six black denticles, after which the appendage, viewed in profile, is trun- 

 cated obliquely upward and backward to form the moderately acute and slightly 

 upturned apex. Inferior appendage about one-fifth shorter, reaching slightly 



TRANS. AM. E.MT. SOC. XXV. (10) SEPTEMBER. 1898. 



