332 Capt. P. P. King's South American Diptera, 



conspicuse : abdomen fuscum ; segmenta basi sordid^ flava : pedes pallid^ 

 fusci, pubescentes ; coxce et femora flava : alee hyalinse, iridescentes, cili- 

 atse, costam versus flavescentes ; nervi pallid^ fusci, pilosi, ad costain 

 obscuriores : halteres flavi, apice fusci. 

 Taken at Monte Video in Brazil, where it abounds, and is called the Mos- 

 quitto by the inhabitants. 



* 2. Chironomus antarcticus, n. s. 



Mas et fem. Canus, thorace maculato, ahdomine nigro, pedlbus ohscurk Jlavis, 

 alls alho-hyallnis. 



Corp. long. 24 — 2\ lin. Alar. 3| — 4 lin. 



Caput canum : oculi nigri : antenna; nigro-fuscse : os fuscum : thorax canus, 

 maculis 3 nigris, media anteposita ; pectus nigrum, nitidum : abdomen 

 nigrum, pubescens ; segmenta apice fusca, mari ferfe nigra : mari pedes 

 pallid^ flavi, pilosi ; fem. obscure flavi, pubescentes ; tarsi fusci : ake 

 albo-hyalinse, iridescentes ; punctum solitum fuscum ; nervi costales fusci, 

 benfe determinati ; cseteri vix conspicui : halteres obscur^ flavi. 

 Taken at Port Famine in the Straits of Magellan. 



3. Chironomus lateralis, h. *. 

 Mas. Ater, thoracis lateribus antice riifis, pedibus nigro-fuscis, alis subfuscis. 

 Corp. long. 1— li lin. Alar. If— 2 lin. 



Ater, nitidus : antennce nigrje : os fuscum : thorax utrinque antice rufus : ab- 

 domen nigrum, obscurum, pubescens : pedes nigro-fusci, pubescentes : alee 

 subfuscoe, iridescentes ; nerri fusci, optim^ determinati : halteres albi. 

 Taken at Port Famine in the Straits of Magellan. 



*4. GONOMYIA? ANTARCTICA, n.S. 



Mas et fem. Fusca, obscura, thorace utrinque maculato, pedibus basi fiavis, 

 alis subhyalinis. 



Corp. long. 2^ — 3 lin. Alar. 6\ lin. 



Gonomyid non benfe convenit ; alarum nervi nonnuUi dissimiles : caput fus- 

 cum : antennce nigro-fuscse, pilosse : thorax griseus, fusco trivittatus ; vitta 

 media lata ; vittw laterales angustiores, breviores : abdomen sordide fusco- 



