Gomphine D rag onjiies from South America. IWS 



Two males from Paraguay have been referred to G. den- 

 tatus by Dr. Calvert (Ann. Carnegie Mas. vi. p. 219, 1909), 

 but, in the absence of fuller particulars, it cannot be said 

 whether these specimens show any close affinity with G. dis- 

 tinguendaSj as their habitat would seem to suggest. 



cJ (holotype). " Buenos Aires, i. 91" (white label, by Ris), 

 ^' Ap'ii/lla dentafa, Selys, c? , Buenos Ayres, Dr. E-is " (white 

 label, by De Selys), " Buenos Ayres, Dr. Ris^* (green label, 

 by De Selys), "118" (pencilled on each of two yellow 

 labels). 



Length of abdomen 41 mm.; length of hind wing 33' mm. 



Labium, labrum, clypeus, frons, and occiput green or 

 greenish. Antenufa and upper surface of head blackish 

 brown. 



Prothorax mostly green, with the anterior and posterior 

 borders yellow. Meso-metathorax greenish brown mid- 

 dorsally, laterally, and ventrally ; chestnut-brown at the 

 shoulders ; the dorsum carrying a .pair of antehumeral broad 

 green stripes, not quite reaching anterioidy the mesothoracic 

 half-collar, which, with the raid-dorsal carina, is also green; 

 another broad green stripe lies upon the mesepimeron-, and a 

 narrow stripe of the same colour upon the metepinieron. 



Wings hyaline, with a mere trace of yellow at the base of 

 the hind wing. Venation blackish brown ; costa anteriorly 

 pale. Pterostigma 5 mm. long, golden yellow, with a distinct 

 brace-vein in all wino-s. At the margin of the wino- two 



O tt O 



cells between Mj and lis, three cells between M3 and M^^ in 

 the fore wings and two in the hind wings, and four to six 

 cells between Cuj and Cu2. Fore wings with 16-17 ante- 

 nodals and 10 postnodals ; hind wings with 12-14 antenodals 

 and 11-12 postnodals. 



Triangle in fore wing 3-celled. Subtriangle of fore wing 

 and triangle of hind wing 2-celled. Subtriangle of hind wing- 

 free. One cross-vein in the supertriangle of each wing. 



Femora greenish brown ; tibia; and tarsi black. 



Abdomen moderately inflated at segments 1-2 ; somewliat 

 constricted at 3 ; moderately inflated again at 7-10, fusiform ; 

 the inferior lateral margins of 8 and 9 not expanded laterally, 

 and but very little dorso-ventrally ; 10 in dorsal view 

 slightly co)istricted in the middle, the hind margin with a 

 shallow median rounded notch, the inferior lateral margins 

 produced apicaliy. Segments 1-2, with the auricles, greenish 

 brown ; 3 mainly greeni.sh brown, black distally; 4-6 black 

 mid-dorsally and distally, with an ill-detined brownish area 

 al each sidt' proximally ; 7 light orange-brown in the proximal 



