Echinomyia. 425 



what puffed out below, a little higher than long. Frons in male more 

 or less narrow, in female broader, somewhat protruding. Cheeks and 

 jowls broad, the latter to three fourths of the height of the eye. In 

 both sexes ocellar, inner and outer vertical, and in female also two 

 orbital bristles. Postocellar, and in jera also occipital bristles. Behind 

 postocular bristles no black hairs. Frontal bristles descending a little 

 or well below insertion of antennæ, being smaller upwards, the upper- 

 most stronger, reclinate and directed more or less outwards in both 

 sexes. Cheeks hairy. Vibrissæ not ascending, only a couple present 

 above the large vibrissa. Eyes bare. Epistoma a little retreating, 

 reflected and somewhat prominent below. Oral cone and proboscis 

 somewhat long, of about equal length. Clypeus long, band-shaped, 

 somewhat dilated above, incised in lower end. Labrum a little shorter 

 than basal part of labium, hypopharynx still shorter. Palpi long, 

 thread-like. Antennæ inserted at or slightly above middle of the eye, 

 second joint elongated, considerably longer than third and this latter 

 not longer than broad; arista with second joint somewhat elongated. 

 Thorax about quadratic; four or more postsutural dorsocentrals and 

 three to four præ- and postsutural acrostichals; a præsutural intraalar 

 bristle. Scutellum with four or a larger number of marginal bristles 

 on each side, the apical less strong, crossing. Three sternopleural 

 bristles (normally). Pteropleara with a tuft of hairs and a couple or 

 more long bristles above. Propleura hairy on upper part (in the Danish 

 species). Abdomen robust, more or less short ovate; excavation on 

 second segment reaching hind margin ; fif th segment slightly excavated 

 in hind margin. Sternites not concealed; there are only marginal 

 bristles, more or less numerous, also present on second segment; 

 fifth segment with several rows on apical part. Fifth sternite cleft to 

 or beyond middle. Præhypopygial segment suddenly smaller than 

 fifth, with a long connecting membrane; genitalia thus not large, 

 but knob-like protruding. Upper forceps forming an elongated trian- 

 gular or still narrower piece ending with a spine-shaped apex; arms 

 of lower forceps more or less elongated triangular piates, outwardly 

 connected with hypopygium and thus, as it were, forming part of it; 

 curved inwards below and with a more or less developed tooth at 

 apex. Legs not specially long, with strong bristles; hind coxæ with 

 more or fewer hairs behind; claws and pulvilli strongly elongated 

 in male; in female the three middle joints of front tarsi dilated. Wings 

 with first posterior cell open, ending before apex of wing; discai angle 

 rectangular; no costal spine. 



