84 Journal New York Entomological Society. [Vol. xiii. 



are more thickly spinose, the spines, however, smaller than those of 

 the male. The antennae of both sexes are about the length repre- 

 sented in the restoration in the figure, the basal segment quite strongly 

 depressed, especially at the base, and considerably thicker than the 

 succeeding ones, the entire antenna gradually tapering to a fine point. 

 The elytra are generally tumid centrally. The males usually, but not 

 always, have the abdominal segments laterally marked longitudinally 

 with white and the margination of the elytra seems quite constant in 

 that sex. As suggested in the former article, the chalky markings of 

 the body are not constant. The end of the male abdomen is very 

 moderately swollen, the seventh and eighth segments subequal, the 

 ninth very slightly shorter, subquadrate, apically subtruncate, mesially 

 very obscurely emarginate ; the operculum reaching the apex of the 

 eighth segment. The cerci are very stout, slightly recurved, cylindri- 

 cal, bluntly terminated organs about as long as the ninth abdominal seg- 

 ment and directed backward, a little downward and scarcely inward. 

 The intermediate and posterior femora of both sexes are usually armed 

 for their entire length beneath on the median line with from five to 

 seven black spines, the apical two moved forward to the anterior 

 carina and opposite them, on the hinder margin, is a single small 

 spine ; all the femone have the geniculations spinose on both sides, 

 those of the anterior pair the least developed. The anterior femora 

 are armed below on the apical third with a couple of very small spines. 



The measurements of a typical pair are as follows : Entire length 

 male, go mm., female, including the oviscapt 125 mm.; antennae, 

 male, 53 mm., female, 45 mm.; mesonotum, male, 20 mm., female, 

 26 mm.; metanotum, male, 6 mm., female, 6 mm.; intermediary seg- 

 ment, male, 7 mm., female, 8 mm.; elytra, male, 7 mm., female, 8.5 

 mm.; anterior femora, male, 20 mm., female, 20 mm.; intermediate 

 femora, male, 16 mm., female 17 mm.; posterior femora, male, 21 

 mm., female, 22 mm ; oviscapt, female, beyond the tip of the abdo- 

 men, 12 mm.; median width, mesonotum, male, 3 mm., female, 5.5 

 mm.; second abdominal segment, male. 2.75 mm., female, 5.5 mm. 



Types in the Museum of the Brooklyn Institute of Arts and Sci- 

 ences, Brooklyn N. Y., and cotypes in the National Museum, Wash- 

 ington, D. C. 



In many particulars this species seems near Aplopus micropterus 

 but the shorter wings and other less noticeable characters seem to 

 separate them. It is also closely allied to A. scabricollis Gray, as 



