50 lULI.KTIN 4«, I'MTKIJ STA'I KS NATIONAL MfSElTM. 



twice :is lii^li :iM vciitrul pliit<>, inner ;in;;le sMuewliiit pointed, roii^li, 

 exteiinil part soiiiewliat <nrve<l. Ilie tip a little priMlnred, roii^li; pus 

 terior plate siekle-shaped, tiie enil sleniler and sliarp, .serratetl IxMieatli 



Jit alMMit the middle. lien^tli of ImkI.v, *•"»' ; widtU, 5""". 



Utihitiit — rkiali, < 'alitornia. 



I have exHinined one male of this Hpeeies from the alxive loeality, 

 whieli was <olleeted Wy Mr. .lames K. Hiuke. 



8. Spirobolus hebes h|>. iiuv. 



Dark oelireous brown, se|;ment.s not ed;;ed with a ditl'er>-nt eolor; a 

 lateral row of small Idark spots; feet li{;hter. Uohnst.not attenuated: 

 the anterior 2—1 He;;inents somewhat trassate, not smooth. Vertex 

 smooth, sparsely punctate, median sulcus interrupted; clypeal foveohe 



8, Antenna- short, about reachinj; the posterior nmr^iu of anterior 

 segment. Eyes distinct, subtrianj^ular, siih's rounded; ocelli 21>-.'iH, 

 arranj;ed in C series. Se};ments .'{!)-4l. First se;;inent n<ute, more so 

 in mah' than female, mar^jinate, ratln'r smooth : second se};;ment stronj;]y 

 produced beneath, triangular and rounde<l. Other segmeias not smooth, 

 sparsely punctate, also numerous impresse<l lines, stria* moderate, 

 Btrongly decuived beneath. Last segment obtusely r«»unded, moder- 

 ately smooth; anal valves not marginate; anal scale rounded. liepug 

 natorial pore small, placed in the anterior divisi<m, suture angularly 

 bent. Pairs of feet, 70-7U, m>t extending beyond the sides of body. 

 Male: coxa' of the .{-(i pairs of feet pn»duced m<>re than the others; tro. 

 chanter of the first and sec<md pairs large, as well as the two anterior 

 pairs of legs are stouter than the rest. Ventral plate smooth, triangu- 

 lar, somewhat swollen near the <mter edge. (lenitalia: inner i>art of 

 the anterior plate twice as high as the ventral plate, end rounded, nu 

 merous short tubercles on the anterior surface, outer part tinger-like, 

 moderately wide, end rounded and not turned outwards, smooth; i)os 

 terior plate thick and somewhat curved, a short blunt lobe at base on 

 the inner side, above this a sharp and thin one, the end small, thick 

 and rounded, beneath produced into two serrated plates. Length of 

 body, 40-50"""; width, 7-8""". 



Habitat — San Diego, California. 



This species is described from a male and a female, collected by Miss 

 Kosa Smith. 



9. Spirobolus californicus (Humbert uud Saiiasiire). 



SpiroHtn-ptiiH valifornivuH Hiiuih. &. SauHs., Reviie et Mag. Zuol., 177, 1870 

 (C'aliloruia). 



Black, segments not edged with rufous, feet and antenna" not or 

 scarcely paler. Robust, not attenuated before, a few of the anterior 

 segments crassate, not smooth. N'ertex rough l>et ween the eyes, smooth 

 elsewhere, a few wrinkles in front, median sulcus interrupted; clypeal 

 foveohe 8. Antenna* moderate, reaching the i)osterior border of ante- 



