\-2'-2 rUOCEEDIXCIS of the XATIOXAL MU8EVM. vol.49. 



Thorax with indistinct brown stripes; haltcres yellow. Abdomen 

 rather evenly cinereous with a tinge of yellow. Coxae black, cinere- 

 ous, the front ones yellowish toward tip, femora, tibiae, and half or 

 more of all the tarsi yellow. 



Length of male, 5 mm.; of female, 5^ mm. 



One male and one female, cotypes, Long Branch, New Jersey; 

 sent me by the describer, C. W. Johnson. 



One female, Webber Lake, California, July 21, 1S76 (Osten Sacken), 

 agreeinp; exactly with the typo female. 



This is the smallest species, and one of the palest. Johnson gives 

 the mesonotal stripes from better-preserved specimens as follows: 

 "Tluve obscure brownish stripes, the wide dorsal stripe divided ante- 

 riorly by a fine hair line, the sub-dorsal stripes divided at the t-rans- 

 veree suture forming two oblong spots; a small obsolete spot also 

 present nbove base of the wing." 



Tln-ee slu-iveled nuxles, Washington, District of Columbia, May 12, 

 1895, are teneral, have been in alcohol, and are unrecognizable. In 

 size they agree with c'merea. They have the halteres infuscated. 

 On account of these specimens, I have ventm-ed to place the species 

 in the section of the table of males having this character. If it proves 

 to be valid, there will be one good mark of distinction between nnerca 

 and hirta. Under the latter species I have discussed the relations of 

 these and allied forms. 



SYMPHOROMYIA CRUENTA Coquillett. 



Symphoromyia cruenta Coquillett, Journ. N. Y. Ent. Sor., vol. 2, 1894, p. 55, 

 nuilo and lomale. I.os Augeles County, California. 



Male. — Black, opaque, the proboscis and logs shining; proboscis 

 slender, longer than height of head, witli narrow labeUa; sides of face 

 pilose; hair everywhere black. 



Eyes separated by more than the width of the lower ocellus; frontal 

 triangle cinereous; lirst antemial joint cinereous, long, much swollen, 

 tapering toward tip, with long and dense black pile; third joint small, 

 rounded, its vertical diameter about S that of the first joint; sides of 

 face bushy black pilose; palpi rather long and slender, black pilose; 

 proboscis as mentioned. Thorax opaque black, from the expansion 

 of the usual black stripes, so that the only cinereous portions are 

 around the edges, a hair line in the center, and a wider line on each 

 side of this; pile long and black; metapleural pile also black ; halteres 

 black, the stem brownish-yeUow in the middle. Abdomen opaque 

 black, black jmIoso, the incisures shining. Front and midillo knees 

 narrowly red; middle coxae not ^^-ith spines; hind coxae with rather 

 long, conical condyles. Wmgs uniform light bro-\\ni. 



Female. — Yellowish-brown poUmose, mesonotum \vith brown 

 stripes, proboscis as in male. 



