AET. 7. CENTIPEDS OF CENTRAL. AMERICA CHAMBERLIN. 3 



The United States National Museum material studied is chiefly 

 from Honduras, collected by Dr. W. M. Mann, and from Guatemala, 

 collected by Dr. O. F. Cook and G. P. Goll. Eleven of the 12 new 

 forms described are from these two countries. The total number of 

 species listed is 43. 



Order SCOLOPENDROMORPHA. 



Family CRYPTOPIDAE. 

 Genus CRYPTOPS Leach. 



1. CRYPTOPS BIVITATTUS Pocock, 



Cryptops divitattus Pocock, Joiirn. Linn. Soc. London, 1894, voL 24, p. 462. — 

 Kkaepelin, Revision der Scolopend., 1903, p. 50. 



Locality. — Costa Kica. 



2. CRYPTOPS MICRUS, new species. 



Plate 1, fig. 2. 



In the type of this species the basal plate overlaps the cephalic. 

 Cephalic plate with paired longitudinal sulci. Basal plate with 

 semicircular cervical groove and paired longitudinal sulci. Anterior 

 margin of prosternum gently doublj'^ bowed. Sulci of anterior plates 

 complete. Last ventral plate with sides straight and converging 

 caudad. Coxopleurae not produced caudad; pores few, only about 

 four on each side in the type. 



Characterized particularly by features of the anal legs. In these 

 the femur wholly lacks teeth and true spines and the tibia has only 

 a single tooth at distal end beneath. Both femur and tibia bear 

 ventrally numerous stout setae, with sparse fine hairs above. Meta- 

 tarsus with four teeth below and the first tarsal joint with two. 

 Tibia and first tarsal joint furrowed and notched at distal end above* 



Length, about 10 mm. 



Locality. — Guatemala : Trece Aguas, one specimen, June, 1907 

 (O.F.Cook). 



Type.— C2it. No. 24118, U.S.N.M. 



3. CRYPTOPS PUGNANS, new species. 



Among American forms similar to the Cu1>un C. cornifer Cham- 

 berlin and the Argentinian G. galatheae Meinert in having paired 

 sulci extending over the full length of the cephalic plate. It agrees 

 with C. cornifer in having the first dorsal plate with a transverse 

 sulcus that is evenly curved, not at all angled at the middle, which 

 the paired and parallel longitudinal sulci attain but do not cross. 

 Prosternal margin doubly convex; bristles 7+7. Tarsi distinctly 

 biarticulate, excepting a few of the most anterior. Last ventral 



