Calvert: Odonata of the Neotropical Region. 215 



Internal triangle hind wing : 



2-celled in 1 6 wings $ , 7 wings 9 > I0 wings $ . 



free in 10 " $ , 2 " 9 ; 



Length of abdomen in mm.: 31-33 $ ; 3 I -5~33 $ ■ 



29-31 9 ; 



" " hind wingin mm.: 23-25 <£ ; 25-26.5 $ . 



24-25-5 9 ; 



Distance on front wing 

 from nodus to stigma in 

 mm. : 6-7. 7-8. 



Both species lack a sternal process on abdominal segment 1 ; both 

 have the pale antehumeral stripes diverging from each other both on 

 their inner and their outer edges. 



Hab. (of recticarinatus*) : BrazIl, Chapada, by H. H. Smith, 4 

 c? and part of one other, 1 9 abdomen attached to a thorax and head 

 of a P. intncatus $ ; one numbered 69, some dated May and Decem- 

 ber. Carnegie Museum, Pittsburgh. 



P. recticarinatus differs from P. complicattis by its smaller size, 

 absence of blackish-brown on the face, predominance of yellow on 3- 

 7 in dorsal view, shorter and more strongly curved branches of the in- 

 ferior appendage c? ; it differs from P. jo?-gensi Ris by the absence of 

 black spots at the base and nodus of the wings, and its smaller size. 



124. Gomphoides hesperus, sp. nov. 



(Pate VII, figs. 125, 1255.) 



d\ Head brown (partly discolored?); external surface of the man- 

 dibles greenish-yellow ; superior surface of frons moderately declined ; 

 hind margin of the occiput straight, with blackish hairs. 



Thoracic dorsum blackish-brown, a green antehumeral stripe not at- 

 taining the antealar sinus, widening forward (cephalad) especially in 

 the foremost third, so that at the anterior mesepisternal margin the 

 stripe is more than twice as wide as at mid-height ; this widening is 

 on the outer (lateral) edge of each stripe, as the inner (mesial) edge 

 is parallel to the mid-dorsal carina and is as far therefrom as the stripe 

 is wide at mid-height ; a second, narrower, green antehumeral stripe 

 is placed just anterior to the humeral suture by less than its own width, 

 it also does not quite reach the antealar sinus. Sides of the thorax 

 chiefly green, a brown stripe on the whole length of the first and of 

 the second lateral sutures ; pectus greenish. 



