LIST OF DIPTERA. 755 



Genus 10. OMMATIUS. 



Corpus non depressura nee cilia turn. Facies prominens. An- 

 tennae arista subtus ciliata. Alarum areola mediastinals clausa ; 

 areolae submarginales dus. 



Ommatius, Illiger ; Wied. ; Macq. 

 Asilus p., Fabr. 

 Dasypogon, p., Fabr. 



Like Asilus in the structure of the wing-veins. 



North America. 



1. Ommatius tibialis. 



Fuscus ; antennce nigra ; thorax vittatus ; abdomen obsolete albo 

 fasciatum ; tibia albida ; alee apice obscuriores. 



Ommatius tibialis, Say, Journ. Acad. Pliilad. 1822, 49. Wied. 

 Auss. Zweifl. i. 422, 6. 



Pennsylvania. 



Mexico. 



2. Ommatius pumilus. 



Fcem. Cinereus ; mystax Jlavidus ; thorax vittis nigris ; pedes 

 nigri y tibiis basi testaceis ; alee hyalince apice subcinerece. 



Ommatius pumilus, Macq. Dipt. Exot. Suppl. 2, 42, 6. 



Mexico. 



West Indies. 

 3. Ommatics Saccas. 

 Ommatius Saccas, Cat. of Diptera, Pt. 2, 474. 

 Jamaica. 



South America. 



4. Ommatius marginellus. 



Cinereo-flavescens ; thorax fusco vittatus; abdomen nigro-fuscum ,■ 

 pedes mellei, femoribus tibiisque apice nigris. 



Asilus marginellus, Fabr. Spec. Ins. ii. 464, 22; Ent. Syst. iv. 



384, 36. 

 Dasypogon marginellus, Fabr. Syst. And. 170, 28. 

 Ommatius marginellus, Wied. Dipt. Exot. i. 213, 1 ; Auss. Zweijf. 



i. 421, 5. Macq. Dipt. Exot. i. 2, 134, 4, pi. 11, f. 4. 



Brazil. 



