THE CANADIAN ENTOMOLOGIST. 143 



^^ . — Length, 2.5 mm. Black, not so shining as in the female, and 

 finely shagreened ; second joint of all trochanters, apex of front femora, 

 front tibipe, an annulus at base of middle and hind tibine, and all tarsi 

 more or less, testaceous, the basal joints more or less yellowish at base 

 and at their extreme tips ; metathorax with delicate carinse, indistinctly 

 areolated. Wings subhyaline, a faint cloud in the region of the basal and 

 transverse median nervures, and at the apical third of the wings, the large 

 triangular stigma and the veins being brown, the parastigma and the 

 extreme base of the stigma being white ; the marginal cell is rather short, 

 triangular, not longer than the stigma ; the areolet is pentagonal in 

 position, but open behind ; the transverse median nervure in the hind 

 wines is straight, biit broken by a vein below its middle, or near its basal 

 third. 



Types.— Cat. No. 8262, U. S. N. M. 



Hab. — Portici, Italy (Dr. Filippo Silvestri). 



This species falls in Forster's Monographie der Gattung Pezomachus 

 (Grv.), Sec. A., pp. 1-33, but is quite distinct, in colour and sculpture, 

 from any of the .species characterized in this work. 



A NEW SPECIES OF XYLINA. 



BY HENRY ENGEL, PITTSBURG, PA. 



Xylhia nigresceiis. sp. nov. — Two males and one female. 



Upper part of head and thorax stone-gray, front of head light brown, 

 surmounted by a well-defined umberbrown line beneath base of antennae. 

 This line is continuous along lower margin of patagise and very contrasting 

 from the gray thorax. The thorax is rather short and square. Thoracic 

 vestiture intermixed with flattened hair. Thoracic crest slightly raised and 

 defined by a patch of dark brown hair. Collar with a faint line near tip, 

 not contrasting. Palpi are reddish-gray, strongly marked laterally with an 

 imiber-brown line outwardly. Antennae brown, almost smooth in female, 

 shortly ciliated in the male. The male antennae are very little thicker than 

 in the female, ciliations gray and contrasting. Basal part of antennae 

 covered with gray scales. Ground colour of primaries ash-gray. A faint 

 tint of green noticeable in one male. The orbicular and posterior third 

 of primaries show the gray colour. The rest of the wing is obscured by 

 dense, glossy black. The basal dash is obvious, curved toward costa, 

 marked with brown scales at the end. Basal part of costa deep black and 

 basal line not visible. T. a. line faintly indicated, curved outward. T. p. 



April, 190^ 



