18 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.60. 



Genus DIAPORUS Silvestri. 



36. DIAPORUS CULEBRAE, new species. 



Plate 8, figs. 8, 9 ; plate 9, fig. 1. 



Brown or olive brown about caudal and cephalic borders of seg- 

 ments, with the middle band ferrugino-testaceus. CoUum olive 

 brown, with borders bright ferrugino-testaceus. Legs a somewhat 

 reddish yellow. Head smooth, with sulcus across vertex fine. Eyes 

 angled at mesal end, about once and a third their longer diameter 

 apart. Ocelli in six or seven series, as 11, 11, 10, 9, 5, 2. CoUum 

 moderately inflexed below, the inflexed portion limited above by a 

 strong ridge, which is swollen into a large rounded tubercle at the 

 caudal edge and curves mesad anteriorly, fading out toward dorsum. 

 Below and parallel with this ridge are five or six deep striae (pi, 8, 

 fig. 8). Segments with the encircling sulcus deep and complete. 

 Surface in general densely but finely punctate, at most weakly or 

 obscurely rugose. Striate beneath and on lower part of sides, the 

 striae not extending up to level of pore, or with a few short striae 

 between pore and uppermost complete stria. The anal tergite very 

 obtusely angled behind; the caudal end abruptly depressed and 

 sharpl}' set off from the main part of plate ; surface densely punctate 

 and a little roughened with a fine network of weak or obscure rugae. 

 The anal valves exceeding the tergite ; mesal borders compressed and 

 elevated ; densel}^ finely punctate. Anal sternite very wide and short, 

 the caudal margin nearly straight, being only slightly angled at the 

 middle (pi. 8, fig. 9) . ' 



The gonopods of the male most resemble those of D. chiriquensia 

 (Pocock) ; but the telopodite of the anterior pair does not have the 

 terminal portion crescentic, the distal process long, and the distal end 

 of the posterior gonopod is different in form (pi. 9, fig. 1). 



Number of segments, 57. 



Length, about 67 mm. : width, 5 mm. 



Locality. — Panama: Culebra, Canal Zone, one male (W. M. 

 Wheeler, November, 1911). 



Type.—C^i. No. 5,016, M.C.Z. 



37. DIAPORUS PALMENSIS (Brolemann) . 



Spirostreptus (ScaphiostrepUis) typotopyge palmenMs Bbolemann, Arm. 



Soc. Ent. France, 1905, vol. 74, p. 362, pi. 9, fig. 18. 

 OrtJioporus palmensis Pocock, Biol. Centr.-Amer, Diplop., 1909, p. 96. 



Locality. — Costa Rica : La Palma. 



88. DIAPOrtUS CHIRIQUENSIS (Pocock). 



Orthoporns chiriqitensis Pocock, Biol. Centr.-Ainer., Diplop., 1909, p. 97, 

 pi. 8, fig. 2. 



Locality. — Panama : Volcan de Chiriqui. 



