1918] Ludlow — Trichoprosopon Theobald {Diptera; Culicidw) 6T 



width, dark highly iridescent (blue-greens to copper colored) scales, 

 the apex at times almost white, labellfe dark; palpi dark, very 

 slender, as long or slightly longer than the proboscis, unplumed, 

 apical joint acuminate; antennae light stemmed, with narrow dark 

 bands, and hea\nly dark verticelled, two rows in each whorl, the 

 slender apical joints at times appearing white; the first joint 

 testaceous and rather heavily scaled on the median aspect; clypeus 

 dark, heavily clothed with, and having a heavy fringe of dark 

 hairs; eyes dark turning to copper color. 



Thorax pro-thoracic lobes sub-lateral, with flat scales, probably 

 brown, but with brilliant blue to white iridescence, and a few short 

 dark bristles; mesonotum dark with flat closely appressed golden 

 to bronze scales on the cephalo-laterad portion, a few dark bristles 

 on the median line at the nape, and the rest of the mesonotum 

 covered with dark browm spindle-shaped or broadly curved scales, 

 and short brown bristles on the lateral margins and at the wing 

 joints; the scutellum is light testaceous, clothed with dark flat 

 scales having blue (cobalt) to white iridescence, six bristles on the 

 mid-lobe and two to four (apparently variable) bristles on the 

 lateral lobes; metanotum dark brown with a small bunch, probably 

 about ten short, dark bristles at the median apical point and about 

 four rows of flat scales with blue to white iridescence extending 

 from these bristles to the base of the metanotum on the median 

 line; pleura light, well clothed with brilliant white (silvery) small 

 flat scales. 



Abdomen covered with dark brown scales having brilliant (cobalt) 

 blue iridescence that in some lights runs toward mauve, but seems 

 not to lose the blue entirely at any time. There are large light 

 golden lateral spots, rather heavier at the apex of the segments^ 

 and the same color extends on the venter which is markedly banded 

 with dark scales on the apex of most of the segments. The apical 

 joints are definitely bristly, and the bases of the claspers rather 

 heavily scaled. 



Legs, coxse and trochanters light scaled, but with a narrow blue 

 band; femora are as a whole dark dorsally, the scales having a 

 brilliant blue to purplish iridescence, and the ventral aspect has 

 light yellow to copper colored (or bronze) scales sometimes ex- 

 tending well toward the knee joint, all are heavily scaled at the 

 apex forming a bunched effect. The remainder of the fore legs is 



