PsyllidcB from South America. ^4,1 



cubiti brachium snperius elongatum, inferiore triplo 

 longius, costam versus convexnm ; brachium inferius 

 breve, ad basin leviter incurvatum ; ramus interior 

 brachio paulo longior ad basin curvatum ; utrique 

 . brachio distantia inter ramorum apices fere eadem ; clavus 

 parvus, angustus, suturateiiuissimaet nonnulhsin situbus 

 fegre cernenda ; nervuli distincti, nigri. Pedes fusco-flavi, 

 pilis obscuris, semierectis, subrigidis, brevissimis, dense 

 obsiti. Femora in ipso apice intus macula minuta nigra 

 plerumque notata. Tarsi supra nigri, inferius rufi. Abdo- 

 men, (? , supra obscure fuscum, basi macula flavescente 

 vel fusco-flava insignitum ; lamina genitalis sordide ex 

 albofusca, subpilosa ; margo posterior, a latere visus, in 

 unguiculum vel dentem brevem obtusum productus ; 

 margo interior ajjice latissimus, late rotundatus ; stili 

 fusci, breves, crassi, clavati, laminae genitalis dimidiam 

 fere altitudinem attingentes. Abdomen, ? , sapra ob- 

 scure fuscum, crassum, postice late rotundatum ; lamina 

 ■genitales desuper aut infra visse tenues ; a latere con- 

 spe9tarum basis longitudine vix paulo brevior; lamina 

 inferior superiore brevior. 



Pale brownish yellow. Head pale brownish yellow. Crown 

 between' the eyes twice as broad as the length down the 

 centre ; anterior margin rounded, deeply notched in the 

 middle ; foveas distinct. Face lobes pale brownish yellow, 

 short, rounded at the apex, not visible from above, nearly 

 covered by the insertion of the antennae, not touching each 

 other. Antennae yellow, short, very sparingly clothed with 

 hairs ; 1st and 2nd joints short, stout ; 3rd longest ; 4th to 

 the 8th black at the apex ; 9th and 10th black, the latter 

 slightly clavate. Eyes deep purple ; viewed from above 

 a little more than hemispherical. Ocelli brilliant, red. 

 Thorax : prOnotum pale brownish yellow, broadest in the 

 middle, narrow at the sides, and widening out into a 

 small yellow knob ; mesonotum brown, slightly hairy, 

 convex ; anterior portion (dorsulum) very convex in front, 

 somewhat constricted on the sides ; lateral angles jjro- 

 duced into a long yellowish spine ; disc posteriorly flat, 

 in the middle more or less yellowish or brownish yellow ; 

 central portion flat down the middle, with a broad, central, 

 and a more or less distinct, yellow line on each side ; 

 scutellar or apical portion yellowish; anterior margin 

 concave; angles acute. Elytra clear, transparent; 

 length about two and a quarter times that of the breadth, 

 broadly rounded at the apex ; nerves fine, black or 



