206 THE CANADIAN ENTOMOLOGIST. 



base, most of basal joint of their tarsi, and the apical joint, black ; abdo- 

 men fusiform, rather shining, punctured, first segment considerably dilated 

 at apex ; ovipositor shorter than abdomen. Length .30 inch. 



Hab. — Georgia (Morrison). Very much like albomaculatus Cress., but 

 readily distinguished by the fuliginous cloud on anterior wings. 



Mesostenus candidus. — $. Black; orbits, face, clypeus, labrum, 

 palpi, line on collar, spots on each side of prothorax above, two lines on 

 mesothorax, scutellum, spot on post-scutellum, tegulae, spot beneath, trans- 

 verse line on sides of pleura, short line or spot beneath, curved spot 

 behind each posterior wing, four spots on metathorax posteriorly, arranged 

 in a transverse line, those on posterior face covering the short obtuse 

 tubercles, four anterior coxae and trochanters, base above and apex 

 beneath of posterior coxae, their tarsi except base and extreme tips, base 

 and apex of first abdominal segment, and apical margin of second and 

 following segments, all white ; front unarmed ; antennae entirely black ; 

 mesothorax confidently punctured, without distinct impressed lines ; meta- 

 thorax reticulated ; wings hyaline, with an aeneous gloss, areolet open ; 

 legs fulvous, base beneath and apex above of posterior coxae, extreme tips 

 of their femora, their tibiae except base, and extreme base and apex of 

 their tarsi, black ; abdomen slender, smooth and polished, first segment 

 slightly dilated at tip, the second much narrowed to base. Length .30 

 inch. 



Hab. — New York (Comstock). 



Mesostenus fortis. — %. Black; orbits, face except two spots 

 above clypeus, clypeus, labrum, spot on. mandibles, palpi, broad annulus 

 on antennae, line on collar, spot on each side of prothorax above, two 

 lines on mesothorax, scutellum, spot on each side before on basal ridge, 

 post-scutellum, tegulae, dot beneath, longitudinal. line on sides of pleura 

 nearly confluent with a short curved line posteriorly and beneath, a line 

 before each intermediate coxa, spot behind posterior wing, two spots on 

 posterior face of metathorax covering the short blunt tubercles, a round 

 spot on each flank, all the coxae except tips of posterior pair above, four 

 anterior trochanters, base of first abdominal segment, and narrow apical 

 margin of all the segments above, all white ; front unarmed ; antennae 

 thickened beyond the middle ; mesothorax without distinct impressed 

 lines, sparsely punctured, longitudinally striated on disk ; wings hyaline, 



