488 PBOOEEDINOB OF THE NATIONAL MUSEUM. vol. 4S. 



Type— C&t. No. 14883, U.S.N.M. 



Close to tumida Wood, but a larger insect and in several respects 

 differing from that species, 



APmOCHvETA mORNATA, new species. 



Male. — Black, hardly shining; frons about one-half broader than 

 long, lower post-antennal bristles half as large as upper pair, which 

 are rather closely placed, center pair in first row nearer to outer pair 

 than to post-antennals but not much below them, antennae black, 

 of moderate size, arista twice as long as frons, pubescent, palpi 

 brownish black, rather large and strongly bristled; thorax hardly 

 shining, pleurae not glossy except the lower half of mesopleura which 

 is polished; abdomen dull black, segments subequal, with numerous 

 scattered hairs present on all segments, those on the preapical row 

 dorsally, and on the la tero- ventral surfaces of sixth segment very 

 much stronger than elsewhere on abdomen, anal protuberance small 

 and retracted, black-brown; legs brown, only the coxse at tips and 

 fore legs paler, hind tibise with distinct dorsal ridge, no setulse, only 

 very numerous weak hairs present; wings grayish, costa to middle, 

 first division as long as other two together, third half as long as 

 second, mediastinal vein reaching to beyond middle of first vein, 

 fringe weak on basal third but long and close on remainder, fourth 

 vein leaving at distinctly beyond fork with a slight bend and ending 

 distinctly in front of wiog tip ; hal teres black. 



Length, 2\ mm. 



Type.—Q&i. No. 14884, U.S.N.M. 



Two males, Ithaca, New York (O. A. Johannsen). 



At first I was led to suppose that this was the male of conspicualis, 

 but the differences in structure were too evident, apart from the 

 widely separated locaUties where the insect occurred, to permit of 

 one placing them together. However, it is not at all unlikely that 

 the male of conspicualis has the costa normal, and that the female 

 of inomata has it swollen as in conspicualis. There are several 

 European species closely allied to those that have this sexual distinc- 

 tion. 



APHIOCH^TA BOREALIS, new species. 



Male. — ^Black, shining; frons shining, longer than broad, rather 

 thickly covered with short hairs in addition to the usual bristles, 

 lower pair of post-antennals about one-half as large as upper, situated 

 much closer but not much lower than upper, center pair of first row 

 nearly in transverse line with upper post-antennals and not much 

 further from eye margin than the outer pair, which are situated 

 much higher on frons, center pair of bristles in second row about one- 

 fourth of the distance between anterior ocellus and post-antennal 

 upper bristles; anteimse normal, brown-black, arista thread-Hke 



