CTJLEX COENIGER 245 



nearly the length of last two joints, which are slightly enlarged; last joint 

 tapered ; vestiture black, with a broad white ring at base of each joint, apex of 

 last one, and a spot on nnder side of penultimate joint pale, a narrow pale ring 

 at basal third of long joint, a broad, difEuse, pale band at apical third; a few 

 short black hairs on last two joints and tip of long joint. Antennse plumose, 

 with the last two joints long and slender, rugose, pilose, black, the others short, 

 whitish, a black ring at insertions of hair-whorls, the hairs long, black. Color- 

 ation similar to the female. Wings narrower than in the female, the stems of 

 the fork-cells scarcely longer, vestiture sparse. Abdomen long, subdepressed, 

 nearly parallel-sided; dorsal white bands very broad, laterally expanded on 

 sixth and seventh segments, eighth segment nearly wholly white-scaled; lateral 

 ciliation long and fine, abxmdant, pale yellowish. Claw formula, 1.1-1.1-0.0. 



Length : Body about 4.5 mm. ; wings 3.5 mm. 



Genitalia (plate 17, fig. 127) : Side-pieces twice as long as wide, the tips 

 conically tapered, a subapical, rounded, truncate prominence bearing two rods 

 with curved tips and a leaf -like appendage; clasp-filament moderate, slender, 

 with an articulated terminal spine. Harpes divided, outer branch stout, bent 

 at tip and densely spined, inner branch bent over; harpagones divided, inner 

 branch cleft at tip into four partitions. 



Larva, Stage IV (plate 103, fig. 343). — Head rounded, roundedly expanded 

 in region of eyes, a strong notch at insertion of antennae, the front margin 

 arcuate; antennae moderate, smooth, uniform, a small hair a little beyond the 

 middle ; at apex a hair, a short hair, a spine, and a digit on a pedicel ; both pairs 

 of dorsal tufts in threes, placed in line transversely; ante-antennal tufts 

 multiple. Thorax rounded, wider than long; abdomen moderate, the anterior 

 segments shorter ; hairs coarse, the lateral tufts multiple on first two segments, 

 double on third to sixth ; body minutely pilose. Mental plate triangular, steep 

 on sides ; a central tooth and 13 on each side, all exactly alike and sloping grad- 

 ually to the steep sides ; three small teeth on the sides. Mandible quadrangular, 

 slightly spined without at base; two filaments before tip and two very short 

 ones ; an outer row of cilia from a collar ; a row of conical prominences along the 

 outer margin, each bearing a small tuft of hair and a slender filament ; dentition 

 of four teeth on a process, the first longest ; a long spine before, a very large, 

 broad filament with coarsely-serrate margined six-feathered hairs within ; proc- 

 ess below tapered outwardly, obscurely furcate with patches of hair ; basal angle 

 nearly obsolete; a row of stout hairs within; three long basal hairs. Maxilla 

 irregularly hemispherical, divided by a suture; inner half with two rows of 

 cilia; a row of hairs at apex, which is granular; outer half with two stout fila- 

 ments next suture, a row of hairs running down from apex, a slender spine near 

 middle, some slight cilia basally. Palpus short and stout, with four minute 

 apical digits. Air-tube conically tapered, about two and a half times as long as 

 wide ; pecten teeth rather sparse, running beyond the middle ; single tooth a long 

 spine with about seven delicate basal branches ; three tufts on posterior margin, 

 two of them within the pecten, a fourth displaced tuft before outer tuft, two 

 more on the dorsal aspect. Lateral comb of eighth segment of many spines in a 

 long triangular patch; single spine elongate elliptical, fringed with small 

 spinules. Anal segment a little longer than wide, ringed by a large plate spined 

 on its posterior margin; dorsal tuft of two long hairs; a small lateral hair; 

 ventral brush well developed, posteriorly situated. Anal gUls long and broadly 

 lanceolate. 



The larvae live in ground-pools, tree-holes, etc., and occasionally take to 

 artificial receptacles, but are not especially domestic. Mr. Knab obtained them 

 in puddles, pools, and ditches, an old tank, and a pot-hole in a stream-bed ; Mr. 



