248 Journal New York Entomological Society. [^'°'- ^^i- 



Mesopleurje hairy and with two bristles ; no postverticals ; four dorsocen- 

 trals ; one intra-alar ; preapical bristle of tibiae present; femora black. 

 (Europe.) Neoalticomerus Hendel. 



CRYPTOCH^TUM Rondani. 



The genus Cryptochcctiim is anomalous in any group. The follow- 

 ing species were originally described as Lestophonns, as a genus of 

 the Oscinidse. The humeral break of the costa, as well as other char- 

 acters, suggests the Milichiina;, but the postverticals are divergent, as 

 in the Agromyzinae alone. The postverticals are inconspicuous among 

 the erect, short, stiff hairs of the vertex, but can be differentiated as 

 a pair of divergent hairs immediately behind the ocellar triangle. 



Penultimate section of the fourth vein one half the length of the ultimate 

 section ; fourth and fifth veins not weakened ; face, front, mesonotum 

 and scutellum deep blue, rather shining ; abdomen shining blue-green ; 

 antennje black, legs blackish ; wings grayish hyaline, veins dark brown. 

 1.5 mm. (Australia, introduced into CaMiovnia..) ... .icerycc Williston, 



Crossveins closer together ; fourth and fifth veins slender beyond the crossvein ; 

 otherwise as in the preceding species. (Australia, doubtfully intro- 

 duced into California.) monophlehi Skuse. 



TRAGINOPS Coquillett. 



Arista almost bare ; lunule white, unspotted ; sides of front cinereous, with 

 setigerous black spots ; thorax similarly spotted, pleurae bivittate, 

 abdomen brown, spotted ; legs yellow, the base of the femora and two 

 rings on the tibiae brown ; halteres yellow ; wings hyaline, with numer- 

 ous rounded brown spots. (Ga., N. J.) irrorata Coquillett. 



ODINIA Desvoidy, 



Bristles of front and mesonotum arising from brown dots, hairs of notum and 

 abdomen arising from smaller brown dots ; front and hind femora 

 with subapical spot ; tibiae with median and apical black rings ; wings 

 reticulate with brown. 4.3 mm. (Ga.) picfa Loew. 



Body cinereous, not with setigerous spots ; wings not reticulate 2. 



2. Wings immaculate ; tibiae brown ; sternopleura and a spot above it brown ; 



disk of mesonotum without acrostichal setulae ; abdomen dark brown. 



1.5 mm. (N. H.) immaculata Coquillett. 



Acrostichals present ; crossveins at least clouded ; tibiae with one or two 

 rings ; pleurae bivittate ; abdomen with paired spots 3. 



3. Front pubescent, reddish above antennae ; acrostichals not seriately arranged, 



but eight to ten on the suture ; both crossveins dark brown ; fifth vein 

 reaches the wing-margin. 4 mm. (Eur.; Mich.) .. .mactilata Meigen. 



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