76 bulletin: museum of comparative zoology. 



2. Abdomen strongly petiolate as usual in the genus .... 3. 

 Abdomen only subpetiolate; recalling to some extent the form 



which it assumes in certain species of Lampro?iota; areolet 

 distinctly petiolate L. plenum, sp. no v. 



3. Areolet small, plainly petiolate, the petiole one-half as long as the 



cubitodiscoidal side of the areolet . . L. depositum, sp. nov. 

 Areolet large, touching the radius in a point ...... 4. 



4. Abdomen slender, the second segment nearly as long as the petiole. 



L. consuetum, sp. nov. 

 Abdomen shorter and stouter, the second segment only a little 

 more than one-half the length of the petiole 



L. tectum, sp. nov. 



Limnerium vetustum, sp. nov. 



Female. Length 6 mm. Body dark, probably black, the antennae more 

 brownish; abdomen higher below and toward the apex; posterior coxae and 

 legs reddish brown; the femora blackened on the apical one-half, slender 

 and only imperceptibly thickened before the apex; surface of mesonotum 

 smooth; metanotum with all three lateral and three pleural areas sepa- 

 rated; ovipositor dark, as long as the abdomen from the tip of the second 

 segment. Wings somewhat infuscated, with a brownish tinge; veins 

 fuscous, stigma lanceolate; first section of the radius nearly one-half as long 

 as the second, the two forming a very oblique angle; areolet large, with a 

 distinct radial side. 



Described from two specimens. 



Type.— No. 2263, M. C, Z., Florissant, Col. (No. 11,459, S. H. 

 Scudder Coll.). Also No. 2264, M. C. Z., Florissant, Col. (No. 

 13,847, S. H. Scudder Coll.). 



There is another specimen, No. 2265, M. C. Z., Florissant, Col. 

 (No. 11,906, S. H. Scudder Coll.) which is probably the same species. 

 It has the hind femora and tibiae black, but otherwise so far as I can 

 make out is identical, although it is not so well preserved as might be 

 desired. 



This resembles L. tectum, but has more slender legs, the posterior 

 femora being not nearly so thick, with nearly parallel sides, whereas 

 in L. tectum they are arcuately thickened at the middle both above 

 and below. The areolet is also much broader above, resting with a 

 distinct side along the radial vein. 



