87' 



Dacus lounsburyii, Coquillet. 

 (PI. Ill, fig. 13.) 



"Proceedings U.S. National Museum," vol. XXIV, No. 1,243, p. 27, 190L) 



In a paper entitled " New Diptera from Southern Africa," D. W. Coquillet 

 described four new species of the genus Dacus from specimens brought from 

 Cape Colony by C. P. Lounsbury, the Government Entomologist, when he 

 visited Washington. 



Dacus lounsluryii. " Head yellow, occiput, except the upper and lateral 

 margins, reddish-brown, frontal vitta, except its lower end, reddish-brown, 

 an ocellar spot, one near centre of front and one on the lanule, blackish, a 

 row of four blackish dots along each orbit ; a broad reddish stripe in middle 

 of face, a black spot on either side near its middle, an oblique reddish line 

 near each orbit, and a large black spot below each eye ; antennae nearly twice 

 as long as the head, brownish-red, the extreme base yellow, the third joint 

 black ; palpi and proboscis brownish-red, apex of the latter largely yellow ; 

 body reddish-brown, indistinctly marked with blackish, mesonotum marked 

 behind the suture with three yellow vittie, a yellow fascia extends along 

 the suture, crosses the mesopleura and encroaches on the sternopleura ; a spot 

 on the hypoplenra, hind margins of thescutellum and of the second abdominal 

 segment literally yellow ; abdomen three times as long as wide; the third 

 segment in the male bearing a row of black bristles, extending from the 

 venter half way to the middle of the dorsum, situated a short distance in 

 front of the hind margin ; ^ings hyaline, a brownish band along the costa, 

 filling apex of subcostal cell beyond auxiliary vein, the whole of the marginal 

 and submarginal cells, apical three-fourths of the first posterior and upper 

 edge of the second posterior cell, faintest in basal portion of submarginal 

 cell and darkest in the posterior cells, that in the first posterior cell some- 

 times having a subhyaline median streak ; anal cell filled with yellow and 

 brown, its lobe and the vein extending beyond its apex bordered with 

 brown ; base of the first basal cell to forking of second and third veins 

 yellowish; legs yellowish-brown, first tarsal joint, except apex and broad 

 bases of hind femora, white ; halteres, whitish ; bases of the stems reddish- 

 brown : basal segment of ovipositor of female greatly flattened, shorter than 

 the preceding abdominal segment ; length 11 mm. 



Described from three males and seven female specimens ; the type in the 

 United States National Museum (Catalogue No. 5,786). 



Specimens taken at Cape Town and Wynberg, South Africa. 



This is one of the largest species of the genus, and is allied to the Aus- 

 tralian species Dacus cequalig, described by Coquillet, in the Proceedings of 

 the Linnsean Society of New South Wales, and Dacus longicornis, Wied., 

 from India and Java. 



All of these have long antennae, are of a general ferruginous tint with few 

 yellow marking-*, the hyaline wings are clouded along the costal nervure, and 

 the large body is pyriform or turbinate with the extremity broadly 

 rounded. 



Dacus brevis, Coquillet. 



("Proceedings of the U.S. National Museum," vol. XXIV, No. 1,243, p. 28, 



1901.) 



Head yellow, frontal vittse sometimes tinged in places with reddish- 

 yellow, the occiput, except along the eyes, yellowish-brown, a dark brown 

 spot above the centre of front, a small black spot on the ocelli, three along 



