AEDE8 PLTJVIATILIS 719 



OBIGINAL DeSCEIPTION or DaNIELSIA MEDIOMACtrLATA: 



Head pale creamy grey with a brown area at each side; proboscis and palpi dark 

 brown. Thorax with bright creamy grey scales, almost silvery. Abdomen deep 

 brown with a median pale area on each segment, uniting with one another to form 

 a median pale line. Legs deep brown with narrow basal pale bands. Fork-cells of 

 wings short. Male palpi brown, nearly as long as the proboscis. 



5. Head clothed with rather loosely appressed flat creamy scales, and then towards 

 the eyes a broad line of brown ones on each side, around the eyes a rim of narrow- 

 curved creamy ones and some narrow-curved ones behind in the mid region, a num- 

 ber of pale ochreous and brown upright forked scales behind; the occipital scales 

 show a median parting and divergent opening in front; chaetae pale golden-brown; 

 proboscis deep brown, also the short, thick palpi, which show bronzy reflections; 

 antennae brown, base of second segment bright testaceous. 



Thorax rich brown clothed with bright creamy narrow-curved scales rather 

 irregularly disposed and with golden-brown chsetse; scutellum with similar scales 

 and brown border-bristles; metanotum deep brown; pleurae brown with patches of 

 flat pale creamy scales. 



Abdomen deep blackish-brown, each segment with a median pale creamy area, 

 which all unite to form a median pale line, and with basal lateral pale creamy spots; 

 first segment pale testaceous with a median patch of creamy scales and two lateral 

 patches of black scales, border-bristles pale. 



LiCgs deep brown, femora pale at the base and beneath, the fore and mid legs bare, 

 pale bands at the base of the first tarsals and involving the joints of the next two 

 tarsals and to some extent the third, in the hind legs the banding is more pro- 

 nounced and extends to the last tarsal, which is dark apically; fore and mid ungues 

 equal and uniserrate, hind equal and simple. The leg banding is mainly basal, but 

 to some extent involves both sides of the joints — knee spots present. 



Wings with short fork-cells; the first sub-marginal considerably longer and nar- 

 rower than the second posterior cell, its base nearer the base of the wing, the cell 

 about two and a half times the length of the cell; stem of the second posterior two- 

 thirds the length of the cell; posterior cross-vein parallel with the mid, a little more 

 than its own length distant from it. 



Halteres thick, with pale stem and fuscous knob. 



Length. — 5 to 5.8 mm. 



cJ. Head-scales paler, almost white, with two black patches and dark at the sides, 

 scales and parting just as In $. Palpi deep brown, with a trace of a pale band 

 towards the base, the two apical segments nearly equal and with dense brown hair- 

 tufts, also on the apex of the antepenultimate segment; proboscis black, thin, just a 

 little longer than the ivalpi. 



Legs as in the 5; fore and mid ungues unequal, uniserrate, hind equal and simple. 

 Claspers of the genitalia long with a long thin apical segment, curved up over the 

 hack. 



Length. — 5.5 mm. 



Habitat. — Para, Brazil (Dr. Goeldi). 



Observations. — Described from a perfect c? and $ sent in a collection by Professor 

 Goeldi. 



It is a very marked species, easily told by the median abdominal spots, which form 

 a more or less pronounced median pale line. 



The character of the S genital claspers turning up also seems characteristic, and 

 the banded legs at once separate it from the somewhat similar alUfasciatus of 

 Macquart. 

 Okiginal Desckiption of Aedes lithcecetob: 



5. — Proboscis moderately long, rather slender, black scaled; palpi short, black 

 scaled; occiput clothed with pale-yellowish scales, narrow curved ones on the 

 vertex, flat ones on the sides, a small black patch on the lower part of the side; 

 mesonotum with the anterior two-thirds clothed with shining light-yellow scales, a 

 dark patch In front of the sides, posterior portion varied with blackish and pale- 

 yellowish scales, a patch at the side separated by a yellow stripe running from the 

 middle to the base of the wing; scutellum yellow scaled; pleura dark with patches 

 of white scales; mesonotum deep brown, nude; abdomen black-scaled above with 

 median basal elongate creamy spots on all the segments, which however do not unite 

 to form a stripe, segments with lateral triangular basal white patches, beneath the 

 abdomen is mostly creamy white with black apical lateral triangular marks; legs 

 black, knees yellow scaled, tarsi with narrow yellowish-white basal rings, the ring 

 at the base of the second tarsal of the hind legs slightly Involves the apex of the 

 first joint; fork-cells rather short, scales of the veins all dark, claws of front and 

 mid legs toothed, of hind legs simple. Length, 5 mm. 



