228 [March, 



from the costal margin at its middle, to the first branch of the median nervure, 

 straight on its outer border, dentated on its inner margin. Posterior wing with an 

 oblong, white, neai'ly central spot, the outer margin dentate. 



Under-side paler brown. Both wings with a siibmarginal, linear band of black, 

 undulate on the posterior wing. Anterior wing with the white band as above, and 

 a pale brown subapical spot undulated with dark brown. Posterior wing with 

 the white spot as above, except that it is extended to the abdominal margin, followed 

 by a band of grej-brown, traversed by a series of minute white spots. 



Exp. 2 jL inch. 



Hub. : Ecuador (Bucklej^). 



Most nearly allied to P. Pallantis. 



Oatlands, Weybridge : 



February, 1878. 



DIAQNOSES OF THEEE NEW SPECIES OF PSYLLID.^. 

 BY DK. FRANZ LOW. 



TrIOZA iEGOPODII. 



Caput ct tliorax fulvi, ruhro-fasci vel obscure sanquinci, mas supra 

 multo obscurior, abdomen infra palUde ocltraceum, supra ollvaccum, in- 

 cisuris pnllidis angustis. Vertex dimidia laiitudine paulo longior, 

 foveolis duabus subcjuadratis. Coiii frontules \ — f longitudinis verticis 

 fere (cquantes^ crassiusculi, apice obtusi et nigiH, non divcrgentes. Clgpeus 

 oiiger. Antemicc basin alarum posticarumfere attingcntes, albce, articulis 

 hasalibus rufescentibus, duobus uUimis ct apice octavi nigris, articulus 

 tertius 2| — 3 tarn longus quam quartus. Pronotum in medio paulo 

 hrevius quam ad lafera, i longitudinis verticis (squans. Elytra 2| tarn 

 longa quam lata, extra medium maxima latitudine, apice obtuse angulata, 

 plus minusve fuscescentia, nervis concoloribus ; pars basalts subcosioe 

 i longitudinis elytri fix superans ; radius cosfcs parallelus ; cellula 

 radialis fere ubique eadem latitudine et paulo tantum latior quamspatium 

 a7igustissimum cellulce discoidalis ; ^jwrs radialis costcc 3 — 3^ turn longa 

 quam pars discoidalis costcB, quoe fere semper longitudinem rami furcalis 

 quai'ti habct, petiolus furcoB primes 1\ — 1\ tarn longus quaiji ramus fur- 

 calis primus, hie extra medium niarginis j^osterioris situs ; ramus furcalis 

 primus et tertius plerumque asquali longitudine. Alee liyalince. Pedes 

 pallide brunnei, fcinoribus obscurioribus. Lamina genitalis maris longi- 

 tudinem segnienti genitalis cequans, lateribus in medio retrorsum paulo 

 dilatatis. Forceps fere longitudine lamincs genitalis, trigona, basi valde 

 lata, 1^ tarn alta quam lata, apice acuta retrorsum vergente. Valvula 

 femincB inferior longitudinem segmenti prcecedentis cequans vel paulo 

 longior, sensim acuminata, valvulam sujjeriorem non superans. 



Long. Corp. maris I'S — 2^nm.,femince 2"2 — 2'4< mm. 



