70 Bulletin Wisconsin Natural History Society. [Vol. 8, No. 2. 



Pezomachus urbanus sp. nov. 

 Male. Length 5 mm. Black, varied with paler markings. First 

 five joints of antenna; brownish yellow, remainder fuscous or piceous ; 

 entire prothorax, sides of mesonotum and most of mesopleurae honey 

 yellow. Legs yellowish brown, the hind femora and the hind tibiae 

 near base and at apex infu seated. Abdomen with yellow bands at the 

 apices of the first four segments. Head subopaque and shagreened 

 above, twice as wide as thick. Ocelli in a nearly equilateral triangle, 

 the lateral ones as far from the median one as from the eye margin. 

 Occiput margined. Front above antennae shagreened, one third wider 

 than either eye. Upper edge of clypeus somewhat above a line drawn 

 between the lower edges of the eyes ; clypeus with a deep fovea at each 

 side. Malar space with a carina, more distinct below, one-half as long 

 as the first flagellar joint. Antennae 24-jointed, as long as the body; 

 first flagellar joint four times as long as thick and one fourth longer 

 than the second; following very gradually growing shorter: those at 

 the apical third of the antenna twice as long as broad. Thorax three 

 times as long as wide, subopaque and shagreened throughout. Meso- 

 notum one third longer than wide, behind the teguhe with a sharply 

 raised lateral margin and on each side opposite the teg-ula? with a 

 slight depression, anteriorly sharply narrowed. Scutellum strongly 

 elevated, with a depressed line across its base. Metathorax with a 

 complete sinuous carina limiting its posterior face which connects with 

 a sharply defined quadrate areola on each side above the posterior 

 coxa; also with an obsolete longitudinal carina outside the spiracles. 

 Abdomen as long - as the head and thorax, the petiole twice as wide at 

 apex as at its narrowest basal portion, the spiracular tubercles only 

 slightly projecting; on each side with a complete carina including 

 the spiracles and another one along- the lower edge of its lateral face. 

 Petiole and base of second segment somewhat opaque ; remainder 

 of abdomen shining-; its hairs sparselj' placed. Legs rather stout, at 

 least the femora ; longer spur of hind tibia one-third as long as the 

 metatarsus which is twice as long as the second tarsal joint. Pleurae 

 rather shining, shagreened, the mesopleura? with a few wrinkles along 

 their anterior and posterior margins. 



New York City, collected by Mr. J. R. de la Torre Bueno. 



This species is very similar to P. foveatus, but the greater 

 number of joints in the antennae and the more complete areola- 

 tion of the metathorax serve to distinguish them easilv in addi- 

 tion to several other characters included in the description. 



