- 18 — 



b. Vena transversa interior quadruplo circiter longior exteriore. 

 Tarsi plus minus obscure glauci. 



Sp. 3. avicularia Lin. 



bb. Vena transversa interior duplo tantum aut vix ultra longior 

 exteriore. 

 Tarsi tibiis lutescentibus concolores. 



Sp. 4. fringillina Crts. (1836). 



Sp. 1. 0. Gestroi m. — Long. mill. 6-7. 



Corpus superne late nigricans : capite fere toto ; thorace et 

 pedibus partim lutescentibus. 



Caput, fronte in medio nigricante; vertice, orbitis, labio, an- 

 tennis et palpis corneo-luteis : fasciola verticis contra 

 ocellos paulo excavata : Prodoscìs luteo-rufescens. 



Labium areola sub-intermedia, angusta, impressa, atra. 



Antennae mediocres, squamiformes, nigro-ciliatae. 



Thorax, disco dorsuali nigro-nitido, humeris, lateribus et 

 pectore plus minusve lutescentibus; scutellmn nigro-nitens, 

 linea basale pallide lutea : humera utrinque maculam 

 fuscam in lutescentia inclusam continent. 



AMomen fusco-obscurum, opacum, basi anguste, et fascia ven- 

 trale latiuscula, longitudinale pallidis. 



Alae sub-limpidae vix paulo griseae, venis majoribus nigri- 

 cantibus : istarum longitudinali s secunda satis ante, et 

 tertia distincte ultra transversam exteriorem costalem 

 attingentes, et ibi tertia parum distans ^ secunda, et valde 

 a quarta : transversa interior sic distans ab exteriore ut 

 ab axillare. 



Pedes, praesertim posteriores late obscure fusci, femoribus 

 inferne et antice sordide luteis ; antici lutescentes, femo- 

 ribus superne obscuris: tarsis praesertim posticis nigri- 

 cantibus, articulis intermediis pallidis : anticis totis, in- 



