ELEPIIANTOMYIA. lOT 



The antennas, if bent backwards, would hardly reach the root 

 of the wings ; the first joint is comparatively shorter than usual ; 

 the second is rounded ; the basal joint of the flagellum is 

 elongated and stout, being apparently formed by the coalescence 

 of two joints ; the following joints are subcylindrical, mbre 

 elongated towards the tip of the antenna3 and beset with rather 

 long verticils. Collare well developed ; its neck short ; thoracic 

 suture well marked. The feet are long and slender, finely pubes- 

 cent; the ungues are somewhat broad at the basis; the usual 

 excision on the under side between the two last tarsal joints is 

 apparent in the male. Wings moderately long and broad (Tab. 

 I, fig. 5) ; tip of the auxiliary vein nearly opposite the inner end 

 of the submarginal cell ; the second longitudinal vein originates 

 a little beyond the middle of the length of the wing ; the prtefurca 

 is arcuated, short, not more in length than about one-third of the 

 remaining portion of the second vein ; the latter is nearly parallel 

 to the third vein, and both are arcuated ; thus the submarginal 

 cell is of nearly equal breadth ; the first posterior is only a little 

 shorter than the submarginal; the discal cell is nearly square; 

 the great cross-vein is usually opposite its middle; the fifth, sixth, 

 and seventh veins are nearly straight ; the stigma is oval, dis- 

 tinctly marked, and there is no trace of a marginal cross-vein. 



The ovipositor of the female has rather long, narrow valves ; 

 the upper ones are very slightly arcuated. 



This genus (the name from ij^i^a;, elephant, and uvia, fly) was 

 introduced by me in the Proc. Acad. Nat. Sci. Philad. 1859, p. 

 220, and based upon a species which, at that time, I believed to 

 be one described by Mr. Westwood, but which proved afterwards 

 to be new. This is the only living species of the genus at present 

 known ; but the three species included in amber and mentioned by- 

 Mr. Loew as Toxorrhinae {Linn. Entom. Yol. Y), apparently 

 belong to this genus. 



Observation. — The statements of Mr. Loew (1. c. p. 394) about the "perfect 

 agreement in the generic characters" (voUstaendige Uebereinstimmung iu 

 den generischen Merkmalen) between these fossil species and To.rorrhina 

 fragilis from Porto Rico rests upon an oversight of the important differ- 

 ence between them : the absence of tlie submarginal cell in the latter. I 

 have been able to ascertain this from the drawings of the fossil Elephan- 

 tomyice, which Mr. Loew kindly sliowed me ; but I have not seen the 

 specimens themselves. The drawings of which I had a glimpse, showed 

 a wing like Elephantomi/ia, that is, with a submarginal cell. Further iu- 



