ART 18 DIPTEEA OR TWO- WINGED FLIES — ALDRICH 17 



3. Palpi slender and very short ; vibrissae at least the length of the second 



antennal joint above the oral margin and distinctly approximated ; 

 dorsocentrals only one or two pairs just before the scutellura (type, 



macellaria Fabricius) mesonotum striped Cochliomyia Townsend. 



Palpi normal, clavate 4 



4. Vibrissae at oral margin, hardly approximated ; dorsocentrals 2, 4, small but 



distinct (type, segmcntaria Fabricius) mesonotum not striped. 



Hemilucilia Brauer. 

 Vibrissae at least the length of the second antennnl joint above the oral 



margin 5 



5. Without dorsocentrals except one or two pairs next to the scutellum ; 

 mesonotum striped (type, fulvlpes Macquart; Compsomijiops Townsend, 



same type) Paralucilia Brauer and Bergeustamm. 



Dorsocentrals 2, 4, small but distinct (tyi>e, semivirklis Van der Wulp) 

 mesonotum not striped Chloroprocta Van der Wulp. 



Neopollenia Brauer, Neocalliphora Brauer and Bergenstamm, and 



Paracalliphora Townsend, all from the oriental and Australian 



' regions, whicli were placed in Chrysomyiini in the National Museum 



collection by Townsend, have bare stem vein and I would refer them 



to the tribe Calliphonni^ with which head structure also agrees. 



Malloch in a recent paper ^ has gone still further in this direction, 

 expressing the opinion that these three genera are at most only sub- 

 genera of Callijyhora. 



Genus COCHLIOMYIA Townsend 



Cochliomi/ia Townsend, Journ. Wash. Acad. Sci., vol. 5, 1915, p. 646. — 

 Shannon, Insecutor Ins. Menst, vol. 11, 1923, p. 106. 



fCallitroga " Schiner MS " Bkauer, Denkschriften Kais. Akad., vol. 47, 

 1883, p. 74.— Johnson, Bull. Amer. Mus. Nat. Hist., vol. 41, 1919, p. 439. 



Townsend considered that Schiner's manuscript name, being 

 "cited in synonymy," had no standing. Johnson asserted that 

 " Brauer and Bergenstamm had a perfect right to adopt Callitroga 

 Schiner MS." They did not adopt it, but they merely mentioned it 

 in an ambiguous way as a collection name of Schiner's, apparently 

 connecting it first and most clearly with Lucilia Jioniinivorax 

 Coquerel. This is supposed to be a synonym of macellaria^ but may 

 be different, and other related species are gradually coming to light. 

 Even admitting the validity of the name for Jiominivorax^ I doubt 

 the advisability of using it as if macella?^ were its type. 



The species described below may be separated from the common 

 and widespread North and South American macellaria by the fol- 

 lowing characters: 



o\ Thorax evidently metallic blue or green, with four white pollinose stripes, 

 the inner not continued on scutellum ; abdomen almost wholly shining 

 above, or with thin and uniform pruinosity, the fourth segment with a 

 white pollinose spot on each side widely separated__macellaria Fabricius. 



« Trans. New Zealand Inst., vol. 55, p. 640, 1924. 

 9099—25 3 



