^"oilli Avnrican fJiilidn'. 31 



pointed, rough, external part somewhat curved, the tip a little pro- 

 duced, rough ; posterior plate sickle -shnped, thti end slender and 

 sharp, serrated beneath at about tl:e middle. Length of body, Ao 

 mm. ; Avidtli, 5 mm. 



Habitat, Ukiali, Califoi-nia. 



I have examined one male of this speeies from the ahove k^- 

 cality, wliich was collected hy Mi-. James K. lUirke. 



8. SPIKOBOLUS HE15E8, sp. iiov. 



Dark ochreous brown, segments not edged with a different color ; a lat- 

 eral row of small black spots ; feet lighter. Robust, not attenuated ; 

 the anterior 2-5 segments somewhat crassate, not .smooth. Vertex 

 smooth, sparsely punctate, median sulcus interrupted ; clypeal fove- 

 olse 8. Antennae short, about reaching the posterior margin of ante- 

 rior segment. Eyes distinct, sul)-triaugular, sides rounded ; ocelli 

 29-38, arranged m 6 series. Segments 89-41. First segment acute, 

 more so in male than female, marginate, rather smooth ; second seg- 

 ment strong!}' produced beneath, triangular and rounded. Other seg- 

 ments not smooth, sparsely punctate, also numerous impressed lines, 

 strise moderate, strongly decurved beneath. Last segment obtusely 

 rounded, moderately smooth ; anal valves not marginate ; anal scale 

 rounded. Eepugnatorial pore small, placed in the anterior division, 

 suture angularly bent. Pairs of feet, 76-79, not extending beyond 

 the sides of body. Male : coxae of the 3-6 pairs of feet produced 

 more than the others ; trochanter of the first and second pairs large, 

 as well as the two anterior pairs of legs are stouter than the rest. Ven- 

 tral plate smooth, triangular, somewhat swollen near the outer edge. 

 Genitalia : inner part of the anterior plate twice as high as the ventral 

 plate, end rounded, numerous short tubercles on the anterior surface, 

 outer part finger-like, moderately wide, end rounded and not turned 

 outwards, smooth ; posterior 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 i to two 

 serrated plates. Length of body, 45-50 mm. ; width, 7-8 mm. 



Habitat, San Diego, California, 



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

 Miss Rosa Smith. 



9. SPIROBOI.US CALIFOKNICUS (Humbert & Saussurel. 



Spirostreptvs cdliforidcus LIumb. & Sauss., Revue et Mag. Zool., 177, 187(5 

 (California). 



