. The Annals of Scottish natural history. Natural history; Natural history -- Scotland. A NEW BRITISH FLY FROM THE FORTH DISTRICT 159 At first sight this interesting species appears to be very like H. militaris, Mg. (= iinpcxa, Lw.), but it is easily distinguished by the colour of the abdomen, as well as by many other important characters. Stein's diagnosis is as follows : — " Atra, oculis fere arete cohaerentibus ; thorace immaculate subnitido ; abdomine oblongo, apice paullo attenuate, nigro,cinereo-pollinoso,vitta media et segmentorum marginibus posterioribus obscuris ; femoribus antic
. The Annals of Scottish natural history. Natural history; Natural history -- Scotland. A NEW BRITISH FLY FROM THE FORTH DISTRICT 159 At first sight this interesting species appears to be very like H. militaris, Mg. (= iinpcxa, Lw.), but it is easily distinguished by the colour of the abdomen, as well as by many other important characters. Stein's diagnosis is as follows : — " Atra, oculis fere arete cohaerentibus ; thorace immaculate subnitido ; abdomine oblongo, apice paullo attenuate, nigro,cinereo-pollinoso,vitta media et segmentorum marginibus posterioribus obscuris ; femoribus anticis subtus bidentatis, tibiis posticis intus nonnullis pilis vestitis, extus in latere a corpore averse setis 5—6 a medio usque ad apicem pertinentibus instructis ; alis subflavidis, venis long. 3 et 4 vix convergentibus, squamis flavis, halteribus nigris.—Long. 7 ; From his long and careful description (in German) I extract the following additional details, which will aid any one in recognising the species:—Arista of the antenna slightly pubescent, somewhat thickened at the base ; thorax deep black, with a slight bluish tinge, and somewhat shining, presutural acrostichal bristles distinct ; abdomen as long as thorax and scutellum together, when seen from behind the first segment, a triangular dorsal spot on the second and third segments, and a narrow dorsal line on the fourth segment black, while the other portions are dusted with whitish. The spots on the second and third segments broaden out behind to form broadish, ill - defined hind- marginal bands of blackish-gray. The hind legs are provided with the following arrange- ment of bristles and hairs : femora below on the side next the body with shortish, fine hairs along the entire length, on the outer side with a row of longer hairs which are fine from the base to the middle, and from thence to the apex bristly ; tibiae (see figure, which gives a view of the side next the body) on the posterior side (" au
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Keywords: ., bookcentury1800, bookdecade1890, bookp, booksubjectnaturalhistory
