Enipididae. 



175 



Fig. 65. 

 H. litorea, 

 front leg. 



X 30. 



marginal bristles on the segments. Venter of the same colour or 

 more greyish, short-haired. Exterior genitalia somewhat large, com- 

 pressed, with some longish hairs on the sides; the lamellæ somewhat 

 shining. Legs darker or lighter brownish, the anterior 

 more or less yellowish, the light colour generally present 

 as stripes and more or less extended; tarsi darkest, gener- 

 ally blackish ; the knees yellowish ; coxæ grey, the front 

 coxæ yellow, and often also the posterior coxæ more or 

 less yellowish. Front femora with fine hairs on the 

 posterior side; middle femora with fine, bristly hairs on 

 the anterior side ; hind femora with fine hairs above and 

 below; front tibiæ with short hairs above, and a pair of 

 small bristles at the apex, posterior tibiæ short-haired, 

 the hind tibiæ with a few bristles on the anterior and 

 dorsal side, the latter somewhat long. Front tibiæ slightly 

 thickened towards the apex, metatarsi somewhat thickened, 

 shorter than the tibiæ, and as long as the four following 

 joints ; the tarsal joints longer than broad, only the fomlh 

 joint on the anterior tarsi about as broad as long. The 

 hairs are yellowish to brownish, the bristles blackish. Wings relatively 

 large, hyaline. Veins thin, darker or lighter brown; the upper branch 

 of the cubital vein somewhat diverging. Stigma very faint. Balteres 

 dark brown to black. 



Female, Of much lighter colour than the male, but otherwise 

 similar to it. Frons broader, this and occiput lighter. Thorax bright 

 grey, without any stripe. Abdomen likewise |bright, almost whitish 

 grey and with white hairs. Front metatarsi simple, about half as 

 long as tibiæ, and as long as the three following joints; hind tibiæ 

 slightly compressed and a little curved in the middle. 



Length 3 — 3,5 mm. 



This species is easily known by the colour of the thorax in the 

 male, and in the female by the colour and the dark balteres. As 

 mentioned in the description the thorax in the male may sometimes 

 want the dark stripe, I think, as also suggested by Strobl, that such 

 males are not quite mature, and then the thorax is as a rule faint 

 and indistinctly brownish on the middle part. 



H. litorea is not common in Denmark, but it cannot, however^ 

 be termed rare; at Copenhagen in a garden, Ordrup, Charlottenlund, 

 Ermelund, Dyrehaven, Ørholm, Ruderhegn, Hillerød; on Funen at 

 Odense and Veflinge, and on Bornholm at Almindingen ; my dates 

 are ^^le—^^b, it thus occurs somewhat late, It seems especially to 



