186 Journal New York Entomological Society. [Voi. xxiii. 



APHIOCHiETA Brues. 

 There are four undescribed species which may be separated by the 

 aid of the following key : 



1. Bristles of hind tibise in a single series, inside the hind edge 2 



Bristles of hind tibise in two series, a stronger one inside the hind edge 



and a weaker one just outside the hind edge ; fore metatarsi of male 

 enlarged, as thick as their tibise A. forthtscula n. sp. 



2. Mesopleura bare 3 



Mesopleura with a number of small bristles above, near the root of the 



wing A. canaliculata n. sp. 



3. Body black, first costal division much longer than the second. .A. atrita n. sp. 

 Head, thorax and legs yellow ; first costal division as long as the second 



A. meijerei n. sp. 

 Aphiochaeta fortiuscula new species. PI. XIII, fig. i. 



Male. — Length 2-2.5 mm. Thorax brownish-yellow; legs testaceous, with 

 the hind femora infuscated at apex ; head black ; antennae dull ferruginous ; 

 palpi testaceous ; abdomen black, first segment yellow ; with narrow, clearly de- 

 fined yellowish apical bands on all the other segments, each segment medially 

 with a yellowish brown spot near the anterior margin ; wings tinged with 

 brownish, the veins fuscous. Front one third higher than broad, brownish 

 along its lower margin ; with ocellar tubercle and median frontal line, its 

 bristles large and strong ; surface subopaque, pollinose ; four post-antennal 

 bristles, the median ones nearly as large as the outer ones and two-thirds as 

 far apart ; outer ones slightly nearer to the median line than to the eye-margin 

 and placed higher up than the inner pair of the ruext row above which are 

 well below the outer bristles of this row ; bristles of middle frontal row equi^ 

 distant, forming a line that curves downward medially. Eyes strongly pubes- 

 cent. Antennas small, arista pubescent, twice as long as the front. Palpi of 

 moderate size, strongly bristled below. Postocular cilia enlarged near the 

 upper third of the eye ; cheeks below each with a strong bristle and a series 

 of gradually smaller bristles extending to the base of the antenna. Mesonotum 

 elongate, quite shining, with five bristles along the lateral margin ; one pair of 

 dorsocentral bristles. Scutellum twice as broad as long, with two strong 

 marginal bristles, the outer pair represented only by hairs. Propleura sparsely 

 hairy, with two bristles at the base of the coxse and several at the humeri ; 

 mesopleura finely bristly above, and with two large, backwardly directed 

 bristles. None of the abdominal segments elongated ; each segment with a 

 marginal line of short bristly hairs which also extend forward on the sides 

 of the second and third segments ; sixth covered with similar hairs. Geni- 

 talia visible only as a pale yellow lamella which bears two bristly hairs at tip. 

 Legs rather stout and short. Fore tibise with a singe series of about 12 dis- 

 tinct setulae nearly half as long as the width of the tibia ; middle tibise with 

 setulse in a double row of about eight each, nearly as long as the width of the 

 tibia, and one long spur; hind tibise with a row of ten long setulse inside the 

 hind margin and a row of eleven smaller ones on the basal two thirds outside 



