THE MYRIAI'ODA OP NOKTII AMERICA. 



175 



S. LANAT1PES. 



8. aurantiaoa; pedibus eompressis, flavis; oapite mandibulis labio sternisque minute punotatis; scgmento 

 cephalico subovato ; labio medio emarginato fore sicut in S. gracile, margins antico rotundato; pedibus posirerajs 

 modice robustis, singulo spinis duabus S. sexspinosse illis similimis, articulo tibiali basali fere sequalij tibia tarso 

 metatarsoque pubesoentibus ; appendicibus analibus lateralibus brevibus, rude punotatis, singula spina apioali 

 alteraque minutissima in angulo superiore postcriore ; squama preanali modiee lata, convexa, margine postico 

 interdum late emarginato. (Figs. 16, 17.) 



Orange; feet compressed, yellow; head, mandibles, labium, and sterna minutely punctate ; cephalic segment 

 subovato; labium medianly emarginate, almost as in 8. gracile, the anterior margin rounded; last feet rather 

 robust, each with two spines similar to those of 8. sexspinosa; tibial and basal joints about equal; tibia, tarsus, 

 and metatarsus pubescent; lateral anal appendages short, rudely punctate ; each with an apical spine, and another 

 very minute one upon the superior posterior angle; prcanal scale rather broad, convex; its posterior margin some- 

 times broadly emarginate. 



8. LANATIPES, Wood, Journ. A. N. S., new series, vol. v, 1803, p. 39. 



This species is closely allied to S. gracilis, and it is possible that further specimens may 

 show that the characters on which I 

 rely m separating them vary. I he 

 differences are as follows : The labium 

 (Fig. 16) closely resembles that of the 

 first described species, but has the cha- 

 racter not so well marked. The pos- 

 terior pair of legs are more robust, with 

 the tibia about equal to the femur in 

 length, and pubescent. The lateral 

 anal appendages are shorter and sepa- 

 rated inferiorly by a much narrower space. The preanal scale is rather broader and more 

 bent over the lateral anal appendages ; and, finally, this species seems to attain to a larger 

 size. Length, 24 inches. 



Hah. California. — Smithsonian Collection. 



Fam. V. GEOPHLLLTLE, Leach* 



Segmerrta numerosa, singulum subsegmentis duobus completis sod insequalibus efformatum, et pedum par unieuin 

 gerens. Oeuli nulli. Antennae 14 articulatoo. Pedes anales breves, styliformes. 



Segments numerous; each formed of two complete but unequal subsegments, and bearing a single pair of feet. 

 Eyes wanting. Antenna) 14 articulate. Anal feet short, styliform. 



* Linn. Trans., vol. xi. 



