ORTHOPODOMYIA FASCIPES 883 



It Is a large and very characteristically marked insect, and may from the character 

 of the palpi form the type of a new genus. 



Habitat: Four females, all taken at a large residence at the pumping station 

 standing at a considerable elevation and surrounded by woods and swamps. It is 

 one of the coolest spots in the immediate neighbourhood of Mandos. They were all 

 taken between the hours of 5 and 5.30 p. m. during the month of August, 1906 and 

 1907. 



Deschsiptign of Femate, Male, and Labva of Obthopodomyia fascipes: 



Female. Proboscis straight, long, slender, slightly swollen towards tip; 

 vestiture of black semi-erect scales, a few yellowish scales intermixed, two- 

 thirds from base a white patch on upper surface and a fringe of pale scales at 

 base of labellffi. Palpi slender, nearly one-third the length of the proboscis ; 

 vestiture of blackish scales with a few yellowish ones intermixed, apices light 

 silver-gray scaled. Antennse filiform, long and slender, the joints subequal, 

 black, white-ringed at base; hairs of whorls sparse and rather short; tori 

 small, closely approximated, piceous, covered with small broad whitish scales. 

 Clypeus prominent, rather narrow, rounded in front, impressed at the sides, 

 piceous, pruinose, nude. Eyes separated by a narrow crest of whitish scales. 

 Occiput broadly clothed in the middle with pale yellowish recumbent and semi- 

 erect narrow scales, those along ocular margins whitish ; there are four patches 

 of erect black scales and an abundance of evenly distributed, dark, erect forked 

 scales ; sides of head clothed with broad, flat, dull white scales, a small patch of 

 black ones above at ocular margin ; bristles along margins of eyes coarse, black, 

 a pair of long pale ones projecting forward at vertex. 



Prothoracic lobes well separated, rather small but prominent, contiguous 

 with back of head, densely clothed with ovate, semi-erect yellowish-white scales 

 and bearing a few coarse, black, very long setae. Mesonotum blackish, rather 

 densely clothed with large, narrow, curved golden-brown scales; antescutellar 

 space bare, a triangular patch of blackish scales medianly in front of it; a small 

 bare space basally at either side of antescutellar space; a small bare spot 

 medianly on sides of disk ; a short stripe of long semi-erect white scales at either 

 side of antescutellar space, indistinct median and sublateral stripes and lateral 

 patches of irregular dull whitish scales, giving an irregularly mottled appear- 

 ance; setas coarse and moderately long. Scutellum clothed with long narrow 

 white scales, each lobe with a group of coarse and moderately long, brown setae. 

 Postnotum prominent, elongate, nude, with a fine median ridge, deep brown, 

 anterior angles pale. Pleurae and coxae piceous, clothed with elliptical flat 

 yellowish-white scales and with rather coarse, dark setae. 



Abdomen rather stout, subcylindrical, blunt at apex ; cerci slender and promi- 

 nent; dorsal vestiture of blackish scales and scattered dull yellowish scales, 

 mostly at apical margins of segments, with large irregular lateral patches of 

 white scales medianly on each segment; first segment short, clothed with 

 blackish scales and with many fine brown hairs ; venter with the basal segments 

 white scaled, the succeeding ones dark scaled with white basal bands. 



Wings rather narrow, membrane smoky-tinged particularly on anterior por- 

 tion ; second marginal cell about twice as long as its petiole ; base of second 

 posterior cell in line with second marginal cell; basal cross-vein very close to 

 anterior cross-vein; veins clothed mostly with very broad subtruncate scales, 

 dull blackish with a few yellowish ones intermixed and with patches of whitish 

 scales arranged as follows : A costal spot at extreme base of wing and a trans- 

 verse white patch a short distance beyond, extending across all the veins ; on first 

 vein two white patches near each other, about one-third from wing-base ; about 

 two-thirds from base a yellow costal patch involving first vein and preceded 

 and followed by a mottling of yellow scales; at apex of wing a whitish patch 

 involving first and upper branch of second vein; bases of second marginal and 



