1920] Ludloic — Siberian Anopheles 75 



one-half the length of the mesonotum, the lateral portions a soft 

 brown shading gradually into the lighter pleura. In the greyish 

 stripe are two narrow raised lines running from the nape caudad 

 about one-half its length and dividing it into three nearly equal 

 parts. The greyish stripe is heavily covered with fine golden 

 brown (almost yellow) hairs through which the two lines show 

 more or less distinctly often giving the effect of three definite 

 stripes of the golden scales, but this does not appear clearly on all 

 the specimens; the short brown stripes are nude, and the softer 

 brown lateral portions are covered much more diffusely than the 

 median greyish stripe. There is a brown median spot just cephalad 

 of the scutellum; golden brown bristles on the lateral margin and 

 heavy dark brown bristles over the wing joint. The scutellum 

 follows closely the coloring of the mesonotum, with fine golden 

 hairs, and dark brown border bristles; pleura light brown shading 

 to the yellow of the coxae, covered with a silvery tomentum and 

 having a few small bunches of long light hairs; metanotum light 

 brown, pruinose. 



Abdomen bcown, with broad light basal bands in the integument, 

 all well covered with long golden hairs, venter mostly light but with 

 some narrow apical brown bands. The abdomen as a whole is so 

 markedly hairy as to resemble that of a male. 



Legs: coxae light, in some specimens a definite yellow, with some 

 light hairs, trochanters follow the general coloring of the coxae, with 

 some white and some brown long flat scales and hairs; femora cov- 

 ered with brown scales having a tendency to greenish or bronze 

 reflections, ventrally almost white to near the apex, a narrow light 

 knee spot; tibiae darker, the apex very narrowly light; the tarsal 

 joints are all dark, but the scales are so sensitive to the direction of 

 the light, that at one moment they may be brown, and in another 

 light are at once almost white. Ungues all large and simple. 



Wings clear, heavily clothed with long brown scales, somewhat 

 truncate on the costa, the proximal part of the first long, and the 

 stem of the fifth long vein, but otherwise the scales are very long 

 lanceolate scales. The membrane is slightly infuscated at the 

 spots which are made by aggregations of the scales and occur at 

 the forks of the first submarginal, and second posterior cells, at 

 the cross-veins and at the root of the second long vein. The first 

 submarginal cell is about a third longer than the second posterior, 



