Tabanidae. 99 



first segments yellow with black middle spots, the four last segments 

 black witli yellow hind margins. Pubescence blaclc and yellow, distri- 

 buted in relation to the ground colour. Legs black; posterior meta- 

 tarsi yellowish brown except the apex, on the hind tarsi also the base 

 of the second joint brown. Wings closely agreeing with the discrip- 

 tion of Low; the apical spot with its apex just passing the anterior 

 branch of the cubital vein at its outlet, the middle band above the 

 cubital vein with a pointed projection reaching to the fork. Balteres 

 black. 



Length 11,-5 mm. 



The design on abdomen of this species somewhat resembles that 

 of the female of C. relictus. The species certainly beiongs to nigripes 

 or lapponicus, and I strongly suspect it to be lapponicus on account of 

 its quite black antennæ and as the coloration of both dorsal and 

 ventral side of the abdomen agrees very well as also does the rather 

 large size. The species can scarcely be confounded with any of the 

 other Danish species, except perhaps C. relictus, but tliis has yellow tibiæ. 



The species must be very rare here, I only know two specimens, 

 both males, one taken at Hillerød -V? (Godskesen), the other in Tegl- 

 strup Hegn (W. Schiick). 



C. lapponicus is only known from Lapland. 



2. Hexatoma Meig. 



Middle sized, dark coloured species. Head a little broader than 

 the thorax. Yowls only little descending below the eyes. Epistoma 

 in the female flat in the male somewhat impressed. Antennæ rather 

 long, placed in the middle of the front side of the head, six-jointed, 

 the first joint somewhat longer than the second, the third very long, 

 the three last short. Eyes distinctly hairy in the male, more sparingly 

 so in the female; the upper facets in the male larger than below; 

 the colour dark, in the male with two bluish violet bands below the 

 large facets, in the female with four somewhat curved bands. Ocelii 

 wanting. The mouth parts quite resembie those in Hæmatopota and 

 Tabanus; in the male there is a membranous excision in the epistoma, 

 and the second joint of the maxillary palpi is thick ovate, in the 

 female it is longer, curved, and the palpi are pendulous. Thorax 

 nearly quadratic; abdomen considerably longer than the thorax, with 

 parallel sides, consisting of seven not transformed segments, the last 

 very small, and in the male only six dorsal segments are to be counted ; 

 the first segment has a triangular excision in the dorsal middle line. 

 Legs simple: middle tibiæ with two apical spurs. Wings hyaline; 



