230 rROCEEDrNat^ of the national museum. vol 51. 



apical angles of the segments. Legs moderately thickly clothed with 

 very long white hairs; fore coxae with a brownish ring in the apical 

 half, middle and hind coxae variegated with fuscous; fore femora 

 with three, middle and hind femora with five brown annulations, 

 middle ring of hind femora darker, almost black; all tibiae with 

 three dark rings in their basal half, the annulations of the fore tibiae 

 and the first narrow annulatioij of the other tibiae being brown, the 

 two other annulations of the middle and hind tibiae black; apex of 

 all trochanters and of tibiae, and extreme base of femora brownish, 

 apex of fore tarsi and the whole middle and hind tarsi fuscous; all 

 dark annuli of the four posterior femora and tibiae bearing, besides 

 the ordinary long white pilosity, a thick tuft of shorter hairs which 

 are brown on the brown annuli, black on the black ones ; fore coxae 

 as long as the apical tumid part of the prothorax ; fore femora and 

 tibiae armed beneath down their whole length with short, black spine- 

 lets, the femora moreover near the base with two strong slightly 

 curved spines which are white with the extreme apex black; fore 

 femora a little shorter than the pronotum. 



Length. — Female, 8.5 mm., with membrane 10 mm. 



Female. — Distance between inner margins of eyes not quite twice 

 broader than an eye; abdomen dilated, elongately suboval, lateral 

 margins at the junction of the four last segments produced in a tri- 

 angular lobule constructed as in the other species and as described 

 by me.^ 



Mexico (Tampico, E. A. Schwarz). 



Tyj)e.—C?,i. No. 20149, U.S.N.M. 



Very distinct from S, spinivenirls Signoret (the only American 

 species hithei-to known) and more related to S. Tnuiri Kirkaldy from 

 the Fiji Islands, from which it diffei*s principally by the nontufted 

 antennae and the structure of the pronotum. 



SCHIDIUM.2 new genus. 



Head without an apical spine. Rostrum with the first joint but 

 little shorter than the anteocular part of" the head, always passing the 

 middle of the anteocular part, longer than or as long as the second 

 joint which passes the eyes, third joint shorter than first and second 

 together. Other characters as in GkUianella Spinola. 



Type of the genus. — Schidiimi lemur., new species. 



To this genus also belong the African Ghil'imiella maiercula 

 Bergroth and nutricula Bergroth, and the Indian Gh. phasma Dis- 

 tant. These Old World species can not be included in the American 

 genus Ghilianella., in which the head is armed with a spine at the 

 apex, and which has the first rostral joint much shorter than the 



iBull. Amer. Mus. Nat. Hist., vol. 31, p. 347. »<tx«io;-= stick. 



