Dec.igio.] . GiRAULT : On THE FAMILY MyMARID^. 245 



minimus Walker but black and with the discal ciliation of the fore wing 

 placed somewhat farther caudad from the cephalic wing margin ; otherwise 

 I am unable to distinguish the two species structurally or otherwise with tht 

 exception of another minor character mentioned later in this description. 



Fore wings in all details as in iiiiiiiniits Walker, the slight proximal fusca- 

 tion present and besides the usual row of discal cilia on both of the wing 

 margins between the bases of the marginal fringes, two other longitudinal 

 rows of discal cilia near the cephalic wing margin, the first close to the margin 

 and somewhat confusable with the cilia at the margin but the second is 

 shorter and is distinctly separated from the margin being between it and the 

 midlongitudinal line of the wing and extending from slightly cephalo-caudad 

 of the apex proximad to a distance slightly beyond the base of the distal 

 half of the wing ; the first line is somewhat longer, extending nearly to the 

 excision or acute dilatation of the wing; in miniuius the second line of cilia 

 may be quite close up to the wing margin, therefore more or less confusable 

 with the other and thus leaving the wing disk quite free of cilia. Posterior 

 wings dilated somewhat distad or subclavate and exactly similar to those of 

 minimus. The marginal ciliation of both wings exactly similar as in that 

 species as is also the extent and shape of the acute dilatation of the caudal 

 margin of the fore wing near its base. However in intonsipeunis, high power 

 (J-inch objective, Bausch and Lomb) reveals in the fore wing a short line 

 of 3 minute discal cilia just oft" of the caudal margin and just back from the 

 wing apex ; these are not visible by low power and I have been unable to find 

 them in mittimus; they do not of course possess much specific value unless 

 they should prove to be constant. 



The antennae are similar to those of minimus both in regard to relative 

 size and shape of the joints and in pubescence. I have not been able to com- 

 pare thoracic and abdominal characters ; the ovipositor is slightly exserted 

 in both species. 



From 3 specimens, §-inch objective, i-inch optic, Bausch and Lomb. 



Male. — Unknown. 



Described from two female specimens mounted in balsam and 

 captured together on a window-pane in a waiting-room of a railway- 

 station at Hendrix (Bloomington), 111., July 22, 1910. 



Habitat. — United States — Bloomington, Illinois. 



Type. — Accession No. 44,113, Illinois State Laboratory of Natural 

 History, Urbana, 111., two females in xylol-balsam, one slide. 



Although this species is so similar to minimus it is not possible to 

 call it that species until we are assured that it may vary in color from 

 brownish yellow to deep black ; such variation is not known to occur 

 in this genus up to this time. 



