144 MAINE AGRICULTURAL EXPERIMENT STATION. I9IO. 



base of the wing, posterior margin of thorax, pleura and ster- 

 num, lutescent; the last two with cinereous; thoracic setae fine, 

 black, and numerous, but not long, scutellar setae long and black. 

 Abdominal tergites with lutescent posterior margins. Legs fus- 

 cous, darker apically. Wings scarcely grayish, stigma fuscous ; 

 cell R^ square, small, the bounding veins black and thickened. 

 Halteres yellow, knob scarcely infuscated. 



Mt. Popocatepetli, Mexico, altitude 3,800 meters. The de- 

 scription is insufficient for positive generic reference, but the 

 numerous thoracic setae and small cell R^ suggest Sciophila 

 (Lasiosoma). 



Genus Paratinia Mik. 

 Paratima. Mik, Verb. Zool.-bot. Ges. Wien, XXIV. 333. 1874. 



Head placed low upon the thorax; palpi incurved, 4 jointed, 

 the basal joint very short, the third and fourth cylindrical ; eyes 

 oval, somewhat emarginate at the base of the antennae; ocelli 

 3 in number, arranged in a transverse line on the front, the 

 middle one but little smaller than the laterals; antennae project- 

 ing forward, 2-\-ia. jointed, the basal joints very small, cupuli- 

 form, the flagellar joints cylindrical, sessile, the joints gradually 

 diminishing in length from the base to the tip. Thorax very 

 highly arched, metanotum steep, scutellum small and without 

 long setae. Abdomen long and slender, 7 segmented. Wing 

 broad, with rather long hairs, especially apically, besides the 

 usual setulae ; costa produced beyond the tip R^+g ; subcosta end- 

 ing in the costa proximad of the middle of the small cell R^, 

 this cell much longer than broad; Sco (subcostal crossvein) 

 proximad of the small cell R.^; the petiole of the fork of the 

 m.edia about half as long as the anterior branch; the cubitus 

 forks proximad of the fork of the media ; anal vein delicate and 

 incomplete (fig. 87). Legs long; tibial setae very delicate or 

 wanting, the spurs long. 



The members of this genus may be distinguished from My- 

 comya by the widely separated ocelli of which the middle one 

 is quite distinct ; from the other Sciophiiincu the}^ may be sepa- 

 rated by the wing venation. 



Paratinia recurva n. sp. 

 Male. Length 5 mm. Head fuscous, transversely oval, 

 somewhat flattened in front, hairy ; ocelli 3 in number arranged 

 in a nearly straight transverse line on the broad vertex; mouth 



