512 ICliXEUAlOMDJE. 



Table of Genera. 



1 (2) Calcaria normal and curved ; hind 



tarsi elongate, with all the joints 

 gradually decreasing in length ; 

 thorax cylindrical .............. Poiuzox, Flu., p. oil'. 



2 (1) Calcaria short and straight ; hind 



tarsi with basal joint much longer 

 than the following; thorax short 

 and convex .................... DIAPAHSIS, Fo'rst., p. 514. 



Genus PORIZON, Fin. 



Porizon, Fallen, Speciin. Ilym. 1813, p. 18 ; Holmgren. Sv. Ak. 

 Handl. 1858, p. 132. 



GENOTYPE, Porizon Jiostilis, Grav. 



Head with the maxillary palpi quadri-articulate and the orbits 

 not pale. Antennae often apically attenuate, with the flagellum 

 multi-articulate. Thorax generally cylindrical and much longer 

 than high ; sternauli always distinct ; metathorax with no costulae or 

 lateral carinae ; basal area rarely entire ; petiolar area not extending 

 beyond centre. Abdomen short, with the petiole stout and some- 

 times disc-ally excarinate ; second segment not transverse, with large 

 and triangular thyridii ; terebra reflexed and usually stout. Hind 

 femora simple and somewhat slender ; calcaria curved ; hind tarsi 

 elongate, with the joints gradually decreasing in length to apex. 

 Stigma broad and generally emitting the radius beyond its centre ; 

 areolet not entire, obsolete or wanting, with the submarginal 

 nervure very short ; anal nervure not arcuate, emitted from below 

 centre of brachial cell ; basal nervure subtriangularly thickened 

 at the costa ; radial cell with its lower angle subacute ; nervellus 

 not geniculate ; basal abscissa of radial nervure in lower wing 

 equal in length to the recurrent nervure. 



Range. Most of the species of this genus are Palsearctic or 

 Nearctic, though a few have been found in Cuba, &c., and their 

 rarity in the tropics is probably due simply to want of observation. 

 Only three Indian specimens have passed through my hands. 



Table of Species. 



1 (2) Mesonotum with four oblong marks, and 



head mainly, testaceous .............. pallidipes, Mots. 



2 (1) Mesonotum black ; head with mouth alone 



testaceous .......................... meridionalis, sp. n. 



403. Porizon pallidipes, Mots. 



Porizon pallipes, Motschulsky, Bull. Soc. Nat. Moscou, xxxvi, 

 1863, p. 2 



An elongate, shining, very finely punctulate and very shortly 

 pilose, black species, with the head (except centrally), the pro- 

 notum laterally, and four oblong central marks, the mesonotum, 



