and Characters of undescribed Species. 371 



liun very minutely bidentate. Metathorax nearly vertical, well 

 developed. Abdomen smooth, much compressed, not longer than 

 the thorax, in structure like that of Cynips ; segments contracted 

 towards the fore-part of the dorsum. Legs smooth, simple, rather 

 short ; femora and tibiae compressed, unarmed, slightly dilated ; 

 middle tibiae much dilated exteriorly ; joints of the tarsi succes- 

 sively decreasing in length to the 5th ; ungues and onychia very 

 small. Fore-wings broad, not long; humerus extending at some 

 distance from the costa ; ulna about one-fifth of the length of the 

 humerus ; radius about twice the length of the ulna ; cubitus 

 somewhat shorter than the ulna. 



This is a very remarkable genus. It partakes of the characters 

 of the Chalcidites and of the Cynipites, and seems to differ from 

 them both as much as they do from each other. It agrees with 

 the Chalcidites in the structure of the wing-veins, and may be 

 considered as the type of a new family of that tribe. 



Sosxelra transversa. 



Foem. — Flavescente fulva; caput nigrum, lituris anticis flavis ; 

 prothorax lineis duabus transversis nigris, la interrupta, 

 2a abbreviata ; scuto linea nigra ; tibiae posteriores ex parte 

 nigricantes ; alae cinereae, venis fulvis lurido marginatis. 



Female. — Yellowish tawny. Head black, yellowish about the 

 base of the antennae and about the eyes in front and towards the 

 mouth. Prothorax with two transverse black lines ; the 1st 

 widely interrupted, the 2nd on the hind border, abbreviated on 

 each side. Scutum with a longitudinal black line. Middle tibiae 

 blackish at the tips ; hind-tibiae blackish except at the base. 

 Wings cinereous. Fore-wings with a lurid tinge about the veins, 

 which are tawny. 



Length of the body 4 lines ; of the wings 7 lines. 



Ega. Discovered by Mr. Bates. In the British Museum. 



Genus Smiera. 

 Smiera transitiva. 

 Fcem. — Lutea ; thoracis discus niger luteo fasciatus et bimacu- 

 latus ; scutellum bidentatum ; metathorax niger ; abdomen 

 nigrum, basi fulvum, thorace brevius ; femora postica nigro 

 trimaculata ; alas obscure cinereae. 

 Female. — Luteous, Head black about the ocelli. Thorax 

 with a dilated black line ; scutum with two luteous spots and a 

 hindward transverse luteous line ; scutellum bidentate. Meta- 

 thorax black, roughly punctured. Petiole tawny, nearly half the 



