304 PROCEEDINGS OF THE ACADEMY OF [March, 



median sulcus distinctly marked except at the extreme posterior mar- 

 gin, which is strongly depressed and flattened, a condition also found 

 in the lateral margins. Tegmina of considerable length, reaching to 

 the base of the posterior femora; the anterior shoulders broadly 

 rounded; extremities subtruncate. Exposed portions of the wings 

 about half as long as the tegmina, the posterior and external margins 

 broadly rounded. Al^domen with the lateral margins almost parallel, 

 the basal segments bearing on their margins minute nodes, each of 

 which gives rise to one or more bristles. Anal segment deep, subrec- 

 tangulate in outhne; median line hardly visible; the apical section 

 bearing, between the bases of the branches of the forceps, a transverse 

 depression. Subgenital plate triangular in outline; apex broadly 

 emarginate, and provided with long, soft hairs. Forceps short and 

 heavy, not quite equal to half the exposed abdomen in length, tri- 

 angular in section l^asally ; apical portion strongly incurved ; the right 

 arm longer than, and overlapping, the left, internal right edge finely 

 crenulate, a minute tooth being developed just before the base. Femora 

 moderately heavy, compressed; tibiae about equal to the femora in 

 length; third tarsal joint shorter than first, the first and second joints 

 heavily haired below, second joint very small. 



General color deep mahogany-brown, becoming dirty yellow on the 

 limbs and lower surface of the head and thorax. Pronotum margined 

 laterally with very duU-yellowdsh. Head reddish-brown. Antennse 

 with the two basal joints reddish-brown; the tenth, eleventh and 

 part of the twelfth pale-yellowish; remainder of the general tint. 

 Tegmina bearing shoulder spots of sti-aw-yellow. Exposed wings 

 with the basal half straw-yellow. 



Measurements. 



Total length, 19.5 mm. 



Length of pronotum, 2.5 " 



Width of pronotum, 2.0 " 



Length of tegmina, 4.5 " 



Anterior width of anal segment, 3.5 " 



Length of anal segment, 2.2 " 



Length of forceps, . . 3.0 " 



Genus ANISOLABIS Fieber. 



1853. Anisolabis Fieber, Lotos, III, p. 257. Included A . tnaritima and mcesta. 



Anisolabis annulipes (H. Lucas). 



1847. Forjiccsila annulipes H. Lucas, Ann. Soc. Ent. France, 2e ser., V, 

 Bull., p. Ixxxiv. [Jardin des Plantes, Paris ; supposed to have been trans- 

 ported from North America.] 



One male; Minatitlan, Vera Cruz, Mexico. February 1, 1892. (H. 

 Osborn.) [U. S. N. M.] 



