436 ^Ir. (). Thomas on Two 



Subfarn. Agrionina. 

 Erythromma tinctipennis, sp. n. 



? . Head black above, with a bronzy greenisli tinge 

 on the sides, clothed with long blackish hairs in front ; 

 front reddish yellow, the clypeus above and the labrum 

 (excepting its margin) black (but wholly yellow in one 

 example). Labium yellow. Back of head black. Antennas 

 black; second joint yellow at apex. Eyes brown. Pro- 

 notum black, its liind margin raised in a bluntly triangular 

 manner, its side-lobes carunculated and deep yellow. Thorax 

 black above, with complete yellow humeral (or humeral and 

 juxtahumeral combined) band; the sides and breast wholly 

 yellow, leaving a uniform isolated black band below tiie 

 humeral ; interalar region spotted with yellow. Legs black ; 

 tiie inner tooth of the claws scarcely shorter than the outer. 

 Abdomen stout, black above, with bronzy greenish tinge, 

 except towards the apex ; on each side of the anterior margin 

 of segments 3 to 6 is a small somewhat semilunate yellow 

 spot ; on segment 3 this is continuous with the yellow sides. 

 Sides of abdomen yellow, interrupted with black at the 

 sutures ; a black ventral line extending the whole length. 

 Appendages small, conical, black ; valvules and their ap- 

 pendages black. 



Wings hyaline, tinged with yellow^ which is more intense 

 on the anterior half. Neuration black; pterostigma dusky 

 yellow, covering about one and a half cellules, its outer edge 

 oblique; 3 to 5 antcnodal cellules; 15 to 17 postnodal 

 nervules in anterior wings, 11 to 15 in posterior; poststig- 

 matical nervules simple or occasionally furcate. 



Length of abdomen 25-26 millim., of posterior wing 

 22-24 millim. 



Three females. 



XLVIl. — On Two new Neotropical Mainmab. 

 By Oldfield Thomas. 



When describing last year in the * Annals ' a new Geomys 

 i'rom Guatemala, G. grand is '^j 1 referred with considerable 

 doubt a s])ccimen from Tohuantcpec to the same form. 



At the request of Dr. Merriam, who is engaged on a 

 revision of the grouj), I have now re-examined this Sj)ecimen, 



* Aim. & Ma-. Nal. llKst. ((>) xii. y. L'70 (18'Jo). 



