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19. Ablabesmyia indecisa Williston 

 18'JG Tanypus Will. Trans. Ent. Soc. Loncl. p.27G 



(P1.27, figs. 12 and 13) 



Male and female, Wings hairy; posterior forked cell not petio- 

 late; front metatarsi shorter than their tibiae. Head and basal 

 joint of the antennae reddish yellow; palpi and the remainder of 

 the antennae brownish yellow; aniennal plnmosiiy of the 

 male gray, towards the tip blackish. Thorax reddish yellow; 

 bare, opaque, with three slender, reddish brown stripes in front, 

 separated by ashy intervals: on each side posteriorly with an 

 elongate brown spot, the middle of which is ashy; scntellum light 

 yellow; metanot inn brownish red. Abdomen slender; opaque 

 brown, the posterior angles and borders of the segments ashy: 

 the yellow of the venter sometimes encroaches upon the (brown 

 of the dorsum ; sixth and seventh segments more distinctly yel- 

 low; the seventh and eighth segments with the posterior portion 

 blackish. Legs yellow, less hairy than in A. flaveola. Wings 

 hyaline, moderately hairy. Length 1..~i to ~.'2r> nun. St Vincent 

 Island. 



I have compared my male specimens with the cotype male speci- 

 men from the St Vincent collection of Cornell university, and 

 cannot detect anv dill'erences. 







Yar. a. (fig.ll'i. .Male and female; agrees with Williston's de- 

 scription, excepting that there are but two reddish brown stripes 

 in front (i.e. the usual middle sfrije with a very slender dividing 

 line) ; and all the abdominal segments are marked alike with ashy 

 borders. 



To Williston's description of the normal species the following 

 may be added: The brown of each segment of the abdomen more 

 intense just in front of the ashy posterior margin. The abdomen 

 of the female is reddish brown, the iucisures yellow and the mar- 

 gins of the segments ashy. Specimens from Ithaca, N. Y., and 

 Pennsylvania. 



20. Ablabesmyia pilosella Loew 

 1SGG T a n y p u s Loew. Berl. Ent. Zeit. p.5 



Female. Testaceous or subfuscous. with pale pile, the dorsum 

 of the thorax without stripes, the scutellum, legs and antennae 

 very pale, the last with long pile and toward the tip blackish, the 

 wings thickly pilose, subcinereous, the basal cells short. Length 

 1 mm. Wing 1.2 to 1.3 mm. 



Small, opaque, testaceous or subfuscous. The antennae ordi- 

 nary, pale, blackish towards the tip, clothed with very long pile, 

 the last joint not thickened. The dorsum of the thorax without 



