154 



PORPHYRASPIS, Hope. 



Coccinelliformis et hemeisphaerica. Caput pro- 

 minulum canaliculatum. Antennae moniliformes ul- 

 timis articulis sensim crassioribus. Thorax valde 

 emarginatus, supra scutellum productus, truncatus. 

 Elytra gibba, basi pmfunde emarginata, angulis 

 anticis porrectis, thoracisque latera cingentibus, for- 

 titer punctata seu insculpta. Corpus infra depres- 

 sum, elytris abdomine multo latioribus. Femora 

 parum incrassata tarsis valde dilatatis. Habitat in 

 America Septentrionali. In selecting the above 

 genera I have chiefly directed my attention to 

 country, as it is remarkable that all the species of 

 Imatidium described by Fabricius were from South 

 America. The last which 1 have characterized is 

 from North America ; the rest are from the East 

 Indies, and to them several others will eventually 

 be added. 



Nitidula, Fahricins. 

 Nitidulid^e, MacLeay. 



Genera. 



Country. 



Typical Species. 



1 . Thymalus, Latreille. 



England 



T. Limbatus, Fabricius. 



2. Nitidula, Fabricius. 



Carolina 



N. Grossa, Fabricius. 



3. Colobicus, Latreille. 



Paris 



C. Marginatus, Latreille. 



4. Strongylus, Herbst. 



England 



St. Ferrugineus, Fabricius. 



5. Cryptarcha, Shuckhard. 



England 



N. Strigata, Fabricius. 



6. Psilotus, Fischer. 



Cayenne 



Ps. Cornutus, Fischer. 



7. Meligethes, Kirby. 



England 



N. Rufipes, Fabricius. 



8. Campta, Kirby. 



England 



N. Lutea, Herbst. 



9. Pria, Kirby. 



England 



N. Truncatella, Marsham. 



10. Carpophilus, Leach. 



England 



N. Flexuosus, Fabricius. 



