436 GNATS OR MOSQUITOES— CHAPTER XIII 



deep dusky-brown, with basal yellow bands expanded at the 

 middle and at the sides into white spots, so as to appear as three 

 spots. Tarsal claws of $ , uniserrated, equal and large. 



J . — Head black, with rather large curved scales, small flat ochreous 

 ones at the sides, and with black and golden-brown bristles ; antennae 

 black, basal joint black, with a thick mass of yellowish scales on the 

 inside, base of the second joint feri'uginous ; palpi dark brown, with 

 black scales ; proboscis black, with a few yellow scales near the base ; 

 cly2:>eus black. Pleune dark, with dense yellow and white patches. 

 Legs dark, with yellow knee-spots, and the upper joints paler below. 

 First hind tarsal joints not as long as the tibiae. Halteres ochreous, 

 with pale scales on the knob. Venter white. Length. — 6*5 mm. 

 Habitat.— England. (Tunbridge Wells). 



81. CULEX NEMOROSUS, Meigen (1818). 



= C. sylvaticus, Meigen (1818) ; = C. guttatus, Curtis (1829) ; = C. provocans. 

 Walker (1848) ; = G. salinus, Ficalbi (1896) ; = C. reptans, Jleigen 

 (1804) ; = C. fasciatus, Meigeu (1804) ; = (?) C. stricticus, Meigen (183S) ; 

 = C. detritus, Halliday. 



(" S. B." i, 4 (1818), Meigen; " S. B." (1830) (= sylvaticus), Meig. ; Guide 

 to Arrang. Brit. Ins. (1829) i, (= guttatus), Curtis ; Brit. Ent. xii, 

 537 (18.34), Curtis; Ins. Brit. Dipt, iii, p. 247 (1851), Walker; Suit. 

 i, 34, 5, Macquart ; Ins, Lapp. 806, 2 ; Dipt. Scand. ;x, 3457, 3, Zetter- 

 stedt ; Fn. Austr. ii, 628, Schiuer ; Klass. i, 3, 2 ( = reptans), Meigeu ; 

 Klass. i, 4, 5 (= fasciatus), Meigen ; Dipt. n. d. Fr. 161, 3, Macq. ; Dipt. 

 Near, viii, 327, Van der Wulp; " F. R." p. 109 (= stricticus, Meig.), 

 reprint, (Ficalbi) ; "List," p. 7 {= j^^o^'ocans), Walker; Noti sulle Zan. 

 Ital. ixa, Nota. (C salmns) (1896), Ficalbi; "V. S." p. 129 (1899), 

 Ficalbi.) 



Tarsi uniformly black. Thorax black, covered with golden- 

 brown and golden scales, those at the sides being paler and 

 brighter than those in the middle, and may form two, more or less 

 distinct, parallel, narrow lines on each side of the darker central 

 area. Abdomen black, with basal, white or creamy-yellow bands, 

 which are usually expanded laterally and narrowed in the middle, 

 sometimes looking only like white lateral spots ; venter white- 

 scaled, with three lateral dark spots. Bases of the femora pale 

 yellowish-white. Ungues of the J , all equal, thick, uniserrated ; 

 of the J , with the fore and mid ones unequal, the hind equal, all 

 uniserrated. 



Head dark brown, with golden linear curved, and somewhat darker, 

 erect forked scales ; antenna' dark, with some white scales on the basal 

 joints palpi of $ , dark brown, witli some paler scales ; those of J , 

 nearly black, rather paler at the articulations, moderatelj' clubbed and 

 barely longer than tlie pi-oboscis. Pleura? dark testaceous, with large 



