LIST OF DIPTEEA. 1019 



Trypeta vespertina, Loeiv. Germ. Zeit. Ent. v. 387, 50, pi. 1,/. 36. 

 a. Aix-la^chapelle. Presented by F. Walker, Esq. 



Trypeta Cluana, n. s., mas. et fern. Purpureo-cyanea cano tecta, 

 capitis vertice ferrugineo, terebra basi ferruginea, palpis fulvis, 

 a?itennis ferrugineis nigro vittatis, pedibus purpureis, tarsis ful- 

 vis, alis limpidis fusco quadrifasciatis. 



Body bright deep metallic blue, clothed with black hairs and 

 bristles : head adorned with a white covering-, thinly clothed be- 

 neath with whitish hairs ; crown deep ferruginous, except a white 

 stripe along each side ; a large yellowish brown spot on each side 

 between the eyes and the sides of the peristoma ; sides of the face 

 without bristles ; epistoma prominent ; sucker pitchy, clothed with 

 tawny hairs ; palpi tawny, broad, beset with black bristles : eyes 

 red, very oblong ; fore part nearly flat, its facets a little larger than 

 those elsewhere ; a black stripe along the face from the eyelets to 

 the epistoma : feelers ferruginous, much shorter than the face, 

 striped above with black ; third joint nearly flat above, convex be- 

 neath, slightly truncated at the tip, full thrice the length of the 

 second ; bristle black, downy, tawny at the base, very slender, full 

 thrice the length of the third joint : sides of the chest purplish : 

 abdomen obconical, as long as or a little longer than the chest, 

 adorned with a hoary tinge on the hind border of each segment, fer- 

 ruginous at the base of the tube, which is shorter than the preceding 

 part, sutures tinged with purple : legs dark purple, clothed with 

 short black hairs ; shanks almost black ; feet bright tawny, with 

 black tips ; foot-cushions tawny : wings colourless, adorned with 

 four broad dark brown bands, the first near the base ; second and 

 third joining each other and forming an angle beneath the fore bor- 

 ber, and including the cross-veins, second not quite reaching the 

 hind border, the fourth along the fore border, extending a little be- 

 yond the tip; wing-ribs pale yellow; veins black, yellow at the base 

 and here and there in the colourless parts of the wing ; lower cross- 

 vein nearly perpendicular, very slightly curved outward, separated 

 by more than its length from the middle cross-vein, which is ob- 

 lique ; the other two cross-veins are beyond one-third of the length 

 of the wing from its base ; longitudinal veins very slightly waving ; 

 scales white, small ; poisers yellowish white Length of the body 

 2i lines ; of the wings 5^ lines. 



a. New Holland. Presented by the Entomological Club. 



b. New Holland. 



