564 MOSQUITOES or north AMERICA 



hind tarsal joints and minute tip of third joint white. Claw formula, 

 1.1-1.1-1.1. 



Length : Body about 7.5 mm. ; wings 6 mm. 



Life history and habits unknown. 



Guatemala to Panama. 



Champerico, Guatemala, August 3, 1905 (F. Knab) ; Tabemilla, Canal Zone, 

 Panama, September 3, 1908 (A. H. Jennings). 



Psorophora champerico is rare, only two specimens from widely separated 

 localities having come to hand. The species is remarkable for its large size, 

 much exceeding any of the others in the Janthmosoma group, and we suspect 

 that the larva will prove to be predaceous. 



PSOROPHORA MEXICANUS (Bellardi). 



Culex mexicanus Bellardi, Mem. R. Accad. Scl. di Torino, Ser. 2, xlx, 205, 1859. 

 Culex mexicanus Bellardi, Sagglo Dltterol. Messic, i, 5, 1859. 

 Lepidosia mexicana CoqulUett, U. S. Dept. Agr., Bur. Bnt., Tech. Ser. 11, 16, 1906. 

 Lepidosia mexicanus Theobald, Men. Cullc, v, 627, 1910. 



Oriqinai. Descbiption of Ctjuix mexicanus: 



Femm. Violaceo-ftiscus, metalUcus. Oapite parvulo, subsphaerico ; vertice setu- 

 loso, setulis nigris; fronte fusca, lata; facie et palpis violaceo-metalUcis; antennis 

 fuscis, capite et thorace longioritus, articulis suhaegualibus, tomentosis, ad basim 

 longe setulosis; proboscide longa, ad basim fusca, ad apicem nigra; occipite squa- 

 mosa, sguamis flavo-aureis. Thorace fusco-nitido, squamosa, squamis aureis; pleuris 

 et pectore pallidis, maculis fusco-violaceis, nitidis; margine postico scutelli setuloso, 

 setulis nigris in tres penicillos dispositis; halteribus flavis, ad apicem fuscis. Abdo- 

 mine violaceo, metallico; lateribus abdominis et ventre squamosis, squamis aureis. 

 Pedibus longis, posticis longioribus; femoribus ad basim anticis parum, posterioribus 

 late flavis, ad apicem violaceo-nigris, metalUcis; tibiis et tarsis violaceo-nigris, metal- 

 licis; ultimo tarsorum posticorum articulo lacteo; tibiis et tarsis posticis dense nigro- 

 tomentosis. Alis fuscis; nervis squamosis, squamis fuscis. 



Lunghezza del corpo * 6 mm. — Lunghezza delle all dlstese 11 mm. 



Molte sono le specie eeotiche dl questo genere gl3. conosciute; fra queste hanno 

 magglore analogla coUa presente 11 C. postieatus Wied., C. longipes Fabe., G. violaceus 

 WiED. e G. splendens Wied. II Culex mexicanus peraltro si distingue assal facllmente 

 da queste specie per le seguenti sue proprieta,: per le squame dorate deU'addome e 

 del ventre dal G. postieatus e dal C. longipes; per I'ultlmo articolo del tarsi posteriori 

 solamente bianco dal G. violaceus e. dal G. spendens, ImperocohS 1 pledi del primo non 

 hanno parti blanche, e la base dl tutti 1 tarsi del secondo 6 blanca. 



Messico (Saij.£). 



Collezloni del Museo zoologlco di Parigi e Bellardi. 



* NeUa lunghezza totale del oorpo noD si tien conto n£ delle antenne, nS della prnbosoide; la 

 lunghezza data delle all nota la distanza interpoeta fra i due apici delle all, conslderando queste 

 come disteee e preparate. 



Descmption op Female op Psobophoka mexicanus (Maij; and Labva Unknown) : 



Female. — Proboscis moderate, cylindrical, slender, uniform, labellffi conically 

 tapered ; vestiture of dark scales with a dark-blue reflection, setae rather numer- 

 ous but very small, those on labellae more prominently outstanding. Palpi over 

 one-fourth as long as proboscis, with blue-black scales and rather short bristles. 

 Antennae with the segments subequal, coarsely pilose, blackish ; second joint a 

 little longer and thicker than the others but similar ; tori subspherical, with a 

 cup-shaped apical excavation, blackish, shining; hairs of whorls sparse, rather 

 long, black. Clypeus rather broadly elliptical, convex, shining black, nude. 

 Eyes bronzy black. Occiput narrow, convex, blackish, vestiture of very broad, 

 flat, dull silvery scales, densest along ocular margins, yellowish brown upright- 

 forked ones behind; bristles near ocular margins rather numerous, blackish 

 with pale tips. 



Prothoracic lobes moderate, remote, black, clothed with broad, flat silvery 

 scales and numerous brown-tipped bristles. Mesonotum black, rather uniformly 



