MICKODON. 239 



Body broad. Head a little broader than the thorax. Antennae 

 longer than the head, seated on a tubercle ; first joint cyliucbical ; 

 second clavate; third tapering from near the base to the tip, almost 

 twice the length of the first and the second ; fourili very short, seated 

 on the tip of the third; fifth stylatc. Thorax elliptical. Wings icitJt 

 the suhapical areolet gradualhj widened from the base outwards. Abdo- 

 men obconical. 



1. senea, Fb. s. i. ii. 413. 4 (1781); Gm. ; Mg. pi. 26. f. 20; 



Pz. ; LI. ; Mq. ; Ztt, ; Edn. — amea, Ksi, ; Rdn. Nigricans, abdoniine 

 ceneo, genuhus tihiis tarsisqiie ferrugineis, antennarwn articulis prima et 

 secmnio subcequilongis. Long. 5; alar. 11 lin. 



Blackish. First and second joints of the antenna of equal length. 

 Abdomen aeneous. Knees, tibice, and tarsi ferruginous. 



Very rare; has been found near Petersfield, Hampshire. In 

 Mr. Curtis's collection. (E.) 



Genus III. MICRODON. 



ni. mag.ii. 275 (1S03); Mg. ; Fin.; Ct. ; Ztt. 

 Musca p., L. ; Dg. ; Slir. i. a. Stratiomys p., Shr. ; Pz. Sgrj)hus 

 p., Fb. e. s. Ilulio p., Fb. s. a. Aphritis, LI. ; Lch. ; St. F. et 

 Srv. ; Mq. 



AntenncB arlicido quarto dorsali. Alee areola subapicali transverse 



bisecta. 



Body short, broad, thick. Head short, obtuse, semicircular, as 

 broad as the thorax, much compressed in front ; epistoma very flat, 

 convex ? pilose ; peristoma small, oval. Eyes parted. Proboscis nearly 

 vertical, not longer than the head. Labrum short, robust, obtuse, 

 naiTow in front. Lingua acute, very slender, as long as the labrum. 

 Palpi cylindrical, very small, hardly visible. Labium cyliucbical, much 

 dilated. Antonnfe 5 -jointed, porrect, contiguous, seated on a hardly 

 perceptible elevation, somewhat longer than the head ; first and second 

 johits armed with fine spines ; first long, cyliudrical, slender at the 

 base, almost as long as the two following; second and third com- 

 pressed ; second cyathiform ; third acute, l)road at the base ; fourth 

 veiy short, seated very near the base of the third; fifth setiforra, as lono- 

 as the tliird. Thorax nearly round, slightly quadrate ; scutellum semi- 

 circular ; hind border emarginate, armed with two Uttle spines. Wings 

 very finely ])uljescent, a little shorter than the border, incumbent and 

 almost parallel in repose ; snbapical areolet bisected transversely ; alula) 

 small. lialteres small, distinct. Abdomen obconical, broader and 

 longer than the thorax. Legs rather stout, pubescent ; tibitc slightly 

 curved. Male. Eyes more contiguous than in the female. 



