146. Cordij/urn. 1991 



nini<iiie indeterininate fnlv:» 1. fiMTii^'iiii'a. jx^stice alhicans, or- 

 I)itis uciilonnn subargenteis ; in inedio canalic iilala. Antennse 

 ultliqiie porrecta», atrap, sela dislincle iiliiinata. Ei.isloina iiaullu 

 longiiis qiiam latiiin, ad latera lungitiidinaliter imiiressuin, api- 

 ce nun reflexiim, tutiiin argeiileo-allmni, nudiim. Blystaces 

 utrinqiie 2, nigra>, siijierior valida, inferior fere duiilu Lrevior, 

 h\ jirjrterea setula iiilerinedia lemiis. Paljii exserti, mudice 

 clavati, nigri, jiilusi, urliilis uciiloriiin clevalis. Gence inediu- 

 cres, argenle», nuda>. Bailia menti teiiuis, alliida. Ociili maxi- 

 mi, olilongo-uvales. Occiiiiil cinereiiiii. Tliorax niger, setusiis, 

 viltis anticis &^ |i1euris alliicanliluis. Seiitelliim coiicolur. Ali- 

 domen ut in diagnosi sexiis; in cf siililus alliidu-liirliim. Nervi 

 alariim longitiidiiiales : aiixiliaiis non iisqiie ad mediiim costai 

 extensiis; 2:diis elongalus, 3 &; 4 paralleli, 5:tiis iion ad mar- 

 giiiein interiorem coiitiiiiialus; nervi traiisversi inodice remoti : 

 mediiis in medio alffi h\ iiaullo pone apicem auxiliaris sitiis, 

 ordinarius jieriiendiciilaris, reclus, anle medium are£e insertiis 

 &r a margiite modice distans; custa vix ciliala; sjiiniila niilla. 

 Segmentum costje 2:diim 3:tio diiplu &^ iillra (fere 2^^) longius, 

 at segmentum nervi longiliidinalis 4:ti seciindum iiltimo fere 

 duplo sallem dimidio lireviiis. Squamae parvje, ciliatse, allia>, 

 valviila siijieriore inferiorem tegente. Halteres albi. Coxa; 

 cinerascentes, anlice in d" sal dense jiilosa», in 9 parce setosa", 

 troclianleribiis intermediis fernigineis. Femora nigra, jiaruin 

 cinereu-micanlia, jiarce selosa, sed siililiis jirffserlim in d" albu- 

 liirla. Geniciila siimiiia riifa. Tibia? umnes riifo-testaceje, for- 

 titer nigro-siiinosa>. Tarsi inermes, riifi, iii c? sallem eviden- 

 ter fusco-subanniilati, arliculo iillimu in iitruque sexu semper 

 infiiscato. — Varial alis idus ininiis ilavicantiliiis. Variat eliam 

 cJ tibiis i>usteriuribiis fere lotis obscurls; iii Jiac varietate ner- 

 viilum adjectiim ante nervuin mediiim, areolamqiie oblongo-qva- 

 dratam in interslilio nervoriim longit. 3 &C 4 inde formalam, vidi. 



2. C. geniculata: rvigra, siibniliJa; capile argenleo, 

 villa fronlali alra, anlico rufcsccnlc; selis myslacinis iilrin- 

 qiie pluribus; ihoracc anlicc albo-viltalo; fcmoribus api- 



