Entomological Society, 537 



The genus Fcenus, Fabr., contains sixteen species, of which the 

 following are described as new : — 



Fcenus Esenbeckii. Piceo-rufus, mesothoracis tergo rugosulo, an- 

 tennis rujis, articulo Sfiofusco, alls lutescenti-hyalinis, areola 

 minuia, discoidali, subconica. Syn. F. affectator var. /3 Esenbeck. 

 Germany. 



Fcenus Guildingii. Gracilis, niger, thoracis et abdominis lateribus 

 riifescentibus, oviductu fere corporis longitndine, vaginis et terebra 

 apice albidis, tibiis et tarsis 4 anticis albis ^ ? . Long. corp. 

 lin. 5J. Island of St. Vincent. 



Fcenus dorsalis. Ferrugineus, capite supra medio mesonoti scutello- 

 que nigris, abdomine piceo, segmentis apice rufescentibus, pedibus 

 piceo-rufis, femoribus tibiisque 4 anticis in medio nigris $ . In 

 Mus. Brit. 



Fcenus terminalis. Niger, thorace Icevi, opaco, lateribus rufo-piceis, 

 tibiis 4 anticis albis, linea interna nigra, posticis nigris, clavatis, 

 annulo basali albo, tarsis albis apice fuscis, oviductu longitndine 

 corporis, vaginis apice late albis $ . Long. corp. lin. 9J. Nova 

 HoUandia. 



Fcenus unguiculatus. Niger, rufo-piceo-varius, areola minuta dis- 

 coidali obliterata, unguibus tarsorum mawimis {in pedibus posticis 

 dimidium tarsorum longitndine cequantibus (^). Long. corp. lin. 5|. 

 Nova Hollandia. 



Fcenus Darwinii. Piceo-niger rufo-varius, pedibus rufo-fulvis, areola 

 discoidali magna ^ . Long. corp. lin. 3. Nova Hollandia. 



Fcenus rufus. Totus rufus, capite thoraceqve punctatis, alarum areola 

 discoidali mediocri ^ . liOng. corp. lin. b^. West Australia. 



In the genus Aulacus, of Jurine (of which the male as well as 

 the mouth organs are described in detail), fifteen species are intro- 

 duced, including the following as new : — 



Aulacus obscuripennis. Niger, capite Icevissimo, thorace antice irre- 

 gulariter striato , postice rugoso, abdomine medio rufo, alis hyalinis, 

 nubila parva media, fascia substigmaticali apiceque tenui fuscis ? . 

 Long. corp. lin. 5f . Poland. 



Aulacus Erichsonii. Gracilis, niger, antennarum articulo 1'"*' sub- 

 tus fulvo, petiolo nigro, abdominis dimidio basali rufo, fascia tenui 

 transversa nigra, apice nigro, coxis nigris, pedibus 4 anticis Jlavido- 

 rufescentibus, femoribus '2 posticis fuscis, tibiis obscuris, apice ru- 

 fescentibus, tarsis omnibus albidis, alis nubila substigmaticali 

 apiceque parilm fuscis ^ . Long. corp. lin. Sj. Prope Berolinum. 



Aulacus thoracicus, Klug. ined. Niger, collari et mesothoracis dorso 

 sanguineo, striato, alarum costa, areola marginali et !*""■ submar- 

 ginali fuscis ^ ? . Long. corp. lin. 5. Cap. Bon. Spei. 



Aulacus Stephanoides. Niger, capite et antennarum articulo basali 

 luteis, abdomine elongato gracili, oviductu abdomine duplb longiore, 

 terebra rufa, vaginis nigris apice albis, alis apice parhm fuscis 

 ? . Long. corp. lin. 7. Brazil. 



