LIST OF DfPTERA. 23 



testaceous bands along the hind borders of the segments. Wings 

 gray; fore half tawny ; a brown spot in the disk beyond the discal 

 areolet. Length of the body 5 lines; of the wings 11 lines. 



a. Para. From Mr. Bates' collection. 



Genus 8. THOEASENA. 



Antennae 1 O-articulatae, simplices, non stylatae ; articulus 3us 

 simplex. Frons concava. Thorax capite angustior. Scutellum 

 muticum. 



Herrnetia, p., Wied. Macg. Hist. Nat. Dipt. 

 Thorasena, Macq. Dipt. JExot. i. 1, 177. 



Mediastinal vein ending at beyond one-third of the length of 

 the wing*. Subcostal ending at beyond half the length. Radial 

 ending at a little beyond the subcostal. First branch of the cubital 

 straight, ending at beyond half the distance between the radial and 

 the second branch which ends at some distance in front of the tip of 

 the wing. Four incomplete nearly straight externo-medial veins. 

 Subanal united to the anal at some distance from the border. Discal 

 veinlet forming two sides of the oblong hexagonal discal areolet. 

 Median veinlet rather long. Humeral, subcostal, mediastinal, 

 radial, first cubital, second cubital, preebrachial, pobrachial, anal, 

 axillary, subapical, and discal areolets complete. Four incomplete 

 externo-medial areolets. Subapical areolet in front of the tip of the 

 wing. 



1. Thoeasena pectoealis. 



Nigra ; antennas basi rufescentes ; thorax lineis stramineis ; pectus 

 rubidum ; abdomen apud medium subrufescens ; pedes rubidi, 

 tarsis nigris basi albis ; alee cinerea, costa nigro-fusca. 



Herrnetia pectoralis, Wied. Analecta Ent. 19, 2 ; Auss. Zweifl. ii. 



26, 7. Macq. Hist. Nat. Dipt. i. 229, 3. 

 Thorasena pectoralis, Macq. Dipt. Exot. i. 1, 178, 1, pi. 21, f. 3. 



Guinea. 



Genus 9. PHYLLOPHORA. 



Mas. Corpus angustum, lineare. Antennae 7-articulatas, capite 

 paullo longiores, articulus lus longus ; 2us cyathiformis ; 3us, 

 4us, 5us, et 6us brevissimi ; 7us setiforrnis, longissimus. Thorax 



