Empididae. 19 



The wings have the subcostal vein short; the discai vein unforked 

 and thus three posterior cells; there is however a small vein-rudiment 

 at the apex of the wing, between the cubital and discai vein, indica- 

 ting the rest of a fork. No discai cell; the basal cells small (the first 



Fig. 3. Wing of M. sHgmaticdlis. 



in reality open, as the medial cross-vein is wanting) ; the lower branch 

 of the postical vein not recurrent, meeting the anal vein ahnost at 

 a right angle; the anal cell longer than the second basal cell; the 

 anal vein reaching the margin. Stigma present. 



The developmental stages are not known. 



Of the genus 3 species are known from the palæarctic region; 

 one is found in Denmark. 



1. M. stigmaticalis Zett. 



1838. Zett. Ins. Lapp. 534, 4, (Ct/rtoma). — 1842. Zett. Dipt. Scand. 

 I, 334, 1, et 1849. VIII, 3013, 1, et 1859. XIII, 4998, 1. - 1903. Kat. 

 palåarkt. Dipt. II, 220. 



Male. Epistoma dark yellowish; occiput dark grey with black 

 hairs. Antennæ dark brownish. Thorax black, slightly brownish 

 pruinose, somewhat shining. Dorsocentral and acrostichal bristles 

 somewhat short, black; notopleural, postalar and scutellar marginal 

 bristles likewise black. Pleura blackish grey, somewhat shining, Ab- 

 domen black, somewhat dull, with rather short, blackish hairs. Venter 

 pale. The last joints of abdomen and the genitalia are incurved 

 towards the venter. Legs brownish (more or less pale); the hind 

 tibiæ and the two first joints on the hind tarsi thickened. Femora 

 with short hairs; tibiæ with dorsal and ventral rows of short hairs 

 and with some longer bristles on the dorsal side; tarsi short haired. 

 The hairs blackish or brown, paler on the tarsi. Wings somewhat 

 broad, very slightly tinged, with a bluish reflex; a seam along the 

 posterior margin quite hyaline. Veins pale brown; between the cubital 

 and discai vein there is a small, abbreviated vein-rudiment at the 

 margin, representing an upper branch of the discai vein. Stigma 



