ART. 11. FLIES OF THE FAMILY CLUSIIDAE — MELANDER AND ARGO. 23 



white, pleurae entirely shining castaneous; three postsutural dorso- 

 centrals. Abdomen piceous, hypopygium moderately large, the 

 lamellae elongate triangular with bluntly rounded tip and devoid of 

 long hairs. Legs yellow. Wings nearly hyaline, a brownish spot 

 on apical fourth between costa and fourth vein, third vein bent, 

 sections of costa proportioned 4.5:1.5:1, of fourth vein 1.3:1:4, of 

 fifth vein 1.1:1; halteres white. Length 3 mm. 



Holotype. — White Mountains, New Hampshire, Morrison, in 

 National Museum, Cat. No. 26265, U. S. N. M. Malloch's record of 

 the occurrence of C. apicalis Zetterstedt in Illinois probably has 

 reference to this species. 



32. CLUSIODES (COLUMBIELLA) APICULATA Malloch. 



Columbiella apiculata Malloch, Occ. Papers Bost. Soc. N. Hist., vol. 5, p. 49 (1922). 



Hale. — Front brown, orbits scarcely lighter, occiput piceous, face 

 and cheeks yellowish, mouthparts pale yellow, antennae blackish 

 except at base, the arista minutely pubescent; two fronto-orbitals, 

 the cruciate bristles inserted at the level of the upper fronto-orbital, 

 buccal hairs fine. Notum black, subshining, upper half of pleurae 

 shining black, lower haK pale yellow, pectus brown, three dorso- 

 centrals. Abdomen black, hypopygium large, its valves unusually 

 long and hairy, crossing beneath the abdomen. Legs yellow, front 

 metatarsus black, hind femora and tibiae centrally brownish. Wings 

 variegated hyaline and smoky, dark on apcial two-fifths and along 

 third and fifth veins near their respective crossveins, the hyaline 

 middle area encroaches on the apical cloud along the middle of the 

 submarginal and first posterior cells, sections of costa 6:2:1, of fourth 

 vein 1 : 0.6 : 4, of fifth vein 1:1; halteres white. Length 3 mm. 



This description is drawn from a specimen from the North Fork of 

 the Swannanoa, Black Mountains, N. C, May (Banks) from the 

 United States National Museum. Malloch records the species from 

 New Hampshire and Vermont. 



33. CLUSIODES (COLUMBIELLA) JOHNSONI Malloch. 



(Fig. 5.) 



Columbiella johnsoni Malloch, Occ. Papers Bost. Soc. N. Hist., vol. 5, 49 (1922). 

 Columbiella nigripalpis Malloch, Occ. Papers Bost. Soc. N. Hist., vol. 5, p. 49 

 (1922). 



Male. — In the albimana group, with three dorsocentrals. Front 

 piceous, the orbits yellow, face black, pollmose, facial orbits and gena 

 pruinose, upper occiput blackish; base of antennae yellow, third 

 joint almost wholly black, arista brown, twice the antennal length, 

 minutely but closely pubescent; palpi black, proboscis yellow; two 

 fronto-orbitals, the cruciate bristles between the posterior pair, no 

 postverticals, vibrissa single, porrect and very strong, buccal hairs 



