TOXORRHINA. 115 



opposite the origin of the second vein ; section of the second 

 vein, posterior to the small cross-vein, arcuated ; the great cross- 

 vein is at the very basis of the discal cell ; the cross-vein sepa- 

 rating the discal from the first basal cell is very oblique ; no 

 vestige of a stigma (Tab. I, f. 6). 



Hab. New Jersey, in July (Cresson^ ; a male and a female 

 specimen. 



2. T. muliebris 0. S. % .—Obscure cinerea, fronte latiore, vittis 

 thoracis obscuris, pedibus pallidis, alis immaculatis. 



Dark cinereous, front rather broad, stripes of the thorax blackish, feet pale 

 tawny, wings immaculate. Long. corp. 0.3. 



Syn. Toxorrhina muliebris 0. Sacken, Proc. Phil. Entom. Soc. 1865, p. 233. 



Head blackish or dark gray ; occiput and occipital orbits 

 cinereous ; antennae brownish ; basal joints darker ; proboscis 

 pale brown. Thorax blackish-gray ; the usual three stripes are 

 still darker, almost black ; they occupy the greater part of the 

 mesonotum ; the latter shows, especially on the sides, a yellowish 

 bloom ; metathorax blackish, with a gray bloom. Feet, including 

 the coxae, yellowish ; tarsi infuscated from the tip of the first joint. 

 Abdomen blackish ; forceps of the male reddish-yellow. Wings 

 hyaline ; no vestige of a stigma ; costal and first longitudinal 

 veins tawny, the other veins darker brown ; the tip of the aux- 

 iliary vein is very slightly beyond the origin of the second vein ; 

 the section of the second vein, posterior to the small cross-vein, 

 is strongly arcuated ; the cross-vein at the inner end of the discal 

 cell is very oblique ; the great cross-vein is a little before the 

 discal cell. 



Hob. Princeton, Mass. (Scuclder) ; a single male specimen. 



This species is distinguished from the preceding by its much 

 smaller size, its darker and more gray coloring, and its compara- 

 tively broader front. Whether the position of the great cross- 

 vein, which in T. muliebris is before the discal cell, is also to be 

 reckoned among the constant characters of the species, is uncer- 

 tain, as I have but a single specimen. The joints of the flagellum 

 of this species immediately following the stout basal joint, are 

 very short and crowded together ; they are more elongated in T. 

 magna. The color of the only specimen in my possession is 

 somewhat injured by moisture, especially about the head. 



