Dipfera of St. Vincent (West Indies). 431 



LOBIOPTERA. 



Walilberg, (Efvers. afK.Yentenska Acad, Forh.,1847, 259. 

 1. Lohioptera leucogastra. 



Milichia leucogastra, Loew, Wien. Entom. Monatschr., 

 v., 43, 20.— Cuba. 



Lohioptera leucogastra, Loew, Centur., viii., 95. 



A single specimen from St. Vincent, agreeing well 

 with the description. 



SEPSIDtE. 



Sepsis. 



Fallen, Ortalidx, 20, 1820. 



1. Sepsis insularis, n. sp. (PL XIV., figs. 159, wing; 

 159a, front leg of 6 .) 



(^ , C . Front shining black, somewhat reddish below, with a 

 median longitudinal depression on the lower part. Antenna; 

 yellowish-red, the third joint sometimes a little brownish ; third 

 joint comparatively large. Face and cheeks yellowish-red. Thorax 

 shining black throughout. Abdomen deep shining black, with 

 coppery and purple reflections. Legs yellow or lutescent yellow, 

 the distal joints of all the tarsi and the hind tibiae brown or black- 

 ish; front femora in the male dilated for the basal two-thirds, as 

 far as a bifid tubercle, in which is inserted a short bristle ; beyond 

 the tubercle the femur is immediately narrowed, and a little 

 distance before it there is a bristle near the middle of the femur ; 

 tibise with a small tubercle corresponding to that of the femur. 

 Wings hyaline, the immediate base iu the costal cells blackish. 

 Length 4 mm. 



Numerous specimens. St. Vincent. 

 BORBOEIDiE. 



LiMOSINA. 



Macquart, Hist. Nat. Dipt., ii., 571, 1835. 



Table of Species. 



1. Third section of the costal vein longer than the second . . 2 

 Third section shorter than the second ,"} 



2. Distal section of the second vein distinctly longer than the 



fii'st section of the third vein .... perjyurva, n. sp. 



