Kahl: The Dipterous Genus Leucophenga INIik. 387 



Mesonotum slightly shining, quite dark brown-red, with a fuscous dash at hu- 

 merus. Humeri, notopleura, and pleura yellowish, with a spot on mesopleura and 

 upper border of sternopleura fuscous. Scutellum above opaque black, with the 

 slightly shining apical third yellowish white; honey-yellow below, Metathorax 

 honey-yellow. Legs pale yellow with the knees of the middle and posterior pairs 

 slightly brownish yellow, and the tibiae of the hind legs (the only pair exposed for 

 examination) with a minute pre-apical seta. Halteres yellowish white. 



Abdomen black, shining, with the small first segment, the narrow basal edge and 

 broad lateral margins of second dorsal segment, yellow. The yellow at base and 

 lateral margins is separated from each other by the projecting black of the segment- 

 Extreme apex of abdomen whitish; basal third of third segment whitish yellow, in 

 certain lights silvery white, and extending across the entire width of the segment. 

 Venter with the base, at least, j-ellow (the apical portion is concealed by the dorsal 

 segments). 



Wings somewhat grayish hj^aline, with two dark brown, longitudinal, diverging 

 stripes from base of wing, the anterior costal stripe, covering the entire marginal cell, 

 except a light streak along basal portion of second vein; the posterior or median 

 stripe, connected at base with the anterior or costal stripe, covering the first basal 

 cell, except its apex anteriorly, and rather broadly continuous along fourth vein to 

 the posterior cross-vein, encroaching lightly upon this cross-vein and upon the basal 

 portion of the ultimate section of the fifth vein; apex of the submarginal cell broadly 

 bordered with diluted brown; costal cell lighter. 



The third vein ends at the very apex of the distinctly pointed wing; second vein 

 straight in its apical half; the distance between the tips of second and third veins 

 scarcely twice the distance between the tips of third and fourth veins, which are 

 almost parallel in their apical course; the distance between anterior and posterior 

 cross-veins distinctly shorter than first section of third vein; anal vein reaching 

 more than halfway towards border of wing; fourth vein thin and pale in its apical 

 course; costa and other veins blackish brown, but basal portion of ultimate section 

 of third vein, basal two-thirds of penultimate section of fifth and apical portion of 

 fourth veins, yellowish. 



The fronto-orbital, vertical, and ocellar bristles of equal strength; the upper 

 reclinate fronto-orbital is distinctly nearer to the inner vertical than to the lower 

 reclinate fronto-orbital, and situated higher up than the lower ocellus; the upper- 

 most setula in the occipito-orbital fringe is longer than, and diverging to, the other 

 setulae in the fringe; lower occipital orbit with a small bristle-like setula, distinctly 

 differentiated from those in the occipito-orbital fringe; postverticals small and 

 hair-like, but distinct, strongly converging and touching at tips; betw^een the two 

 sternopleurals (of the posterior one only the scar remains) a minute setula; of the 

 dorso-central bristles the anterior is shorter and weaker, and of the same size as the 

 prescutellar pair, which is situated slightlj^ nearer the scutellum than is the pos- 

 terior dorso-central; the presutural is minute; the anterior supra-alar is small, but 

 distinctly differentiated from the setulse of mesonotum (of the posterior postalars 

 only the minute scars remain) ; of the four scutellar bristles the apical pair (probably 

 strongly convergent in life) is situated on the yellowish white portion and the other 

 pair on the dark portion of the scutellum; all bristles and setulse black. 



Habitat: Philippine Islands, Mindanao, one male?, Carn. Mus. Ace. No. 5030. 



