MENISCUS. — LISSONOTA. 27 S 



2. Meniscus mexicanus. 



Meniscus mexicanus, Cresson, Proc. Acad. Phil. 1873, p. 410 ( $ )*. 

 Hab. Mexico, Cordova 1 {Sumichrast). 



3. Meniscus (?) alternatus. 



Meniscus (?) alternatus, Cresson, Proc. Acad. Phil. 1873, p. 410 (<J) 1 . 

 Hab. Mexico, Cordova 1 {Sumichrast). 



4. Meniscus (?) orbitalis. 



Meniscus? orbitalis, Cresson, Proc. Acad. Phil. 1873, p. 411 ( ? )\ 

 27od. Mexico, Cordova 1 (Sumichrast). 



LISSONOTA. 



Lissonota, Gravenhorst, Ichn. Europ. iii. p. 30 (1829). 



The species I have described here are better placed in Lissonota than in any other 

 genus. The only point in which they differ from the typical species is that the clypeus 

 is slightly incised. None of the species have an areolet, but the absence of this is not 

 looked upon as of generic value. 



1. Lissonota albispina. (Tab. XL fig. 19.) 



Nigra; annulo antennarum, orbitis anticis tarsisque posticis, albis; alis fere hyalinis, stigmate nigro. $ . 

 Long. 12-13 millim. 



Hab. Panama, Volcan de Chiriqui 200 to 600 feet (Champion). 



Very closely and uniformly punctured all over, the legs more closely and finely 

 punctured than the body. Antennae as long as the body, the white band interrupted 

 on the lower side. Head projecting in the middle in front, the projection depressed at 

 the base and apex ; clypeus projecting, more strongly punctured than the face ; labrum, 

 and the apical joints of the palpi, white. Mesonotum without sutures; metanotum 

 longish, having a gradual slope to the apex, with a distinct longitudinal keel on the 

 outer side of the spiracles, an indistinct transverse one not far from the apex, and a 

 more distinct one immediately before the apex. Pleurae covered with short silvery 

 pubescence. Abdomen carinate on the ventral surface at the base, the first segment 

 the longest ; the apices of the first and second segments, the base of the third narrowly, 

 and the apical segments at the apex more broadly, white. Basal three fourths of the 

 metatarsus, and the apices of the hind tarsi, black. 



2. Lissonota leucozona. 



Nigra; ore, facie, orbitis, tegulis, sterno, pleuris pro parte, lineis 2 mesonoti, scutello, postscutello, metanoto 

 lateral!, abdominis segmentis apice, coxis anterioribus, tibiarum posticarum dimidio basali medioque tarso- 

 rum posticorum, albis ; alis hyalinis, stigmate nigro. $ . 



Long. 11 millim. 



biol. centk.-amee., Hymenopt., April 1886. 2im 



