552 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. xxvii. 



RHICNODA RUGOSA Brunner. 



1893. R{hlciioda^ ragosd Brunxer, Ami. Mus. Civ. Stor. Nat. Genova, XXXIIT, 

 13. 31; Cariii Oheba, Cariu Ghecu (1,300-1,400 meters), mountains of Catcin 

 Cauri, Kokareet, Burma; Mooleyit, Tenasserim (1,200-1,400 meters); Palon 

 Pegu; Java. 



One immature female; Goenong- Soegi, Lampon^, Sumatra. Oct.- 

 Nov., 1901. (A. C. Harrison, jr., and D. H. M. HiUer.) [A.N.S. 

 Phila.] 



RHICNODA DESIDIOSA, new species. 



Type. — Female (immature); Trong, Lower Siam. (Dr. W. L. 

 Abbott.) [Cat. No. 6950, U.S.N.M.] 



Apparently closest allied to B. rejiesoa Saussure and Zehntner,« 

 from Nicarag'ua, from which it differs in the broader pronotum, in the 

 larger size, and the broader supra-anal plate. No relationship exists 

 with either of the Old World species {rugosa and spinulosa Brunner), 

 or with R. laminata Brunner, from St. Vincent. 



Size rather large; form ovate, depressed; surface rugose. Head 

 completely hidden under the pronotum, anterior border subtruncate; 

 interspace between the e3^es slightly less than that between the ocelli; 

 ocelli rather small, touching the eyes; eyes elongate, median and poste- 

 rior sections strongh^ depressed; antennae short, not equal to half the 

 length of the body; lower surface of the head deplanate, the inter- 

 antennal region concave. Pronotum transverse, subtriangular, apex 

 anteriorly; lateral margins uncurved, meeting at an angle anteriorly; 

 posterior margin very broadly obtuse angulate, lateral angles ver}^ nar- 

 rowly rounded, the posterior margin supplied with a transverse series 

 of nodes or folds ; disk and cephalic boss of the pronotum well elevated 

 above the comparatively flat lateral portions. Mesonotum and meta- 

 notum with their posterior margins emarginate, in the metanotum 

 with a slight median projection, each supplied on the median portion 

 of the posterior margin with a transverse series of eight to ten longi- 

 tudinal folds. Abdomen with the lateral portions of each segment 

 produced posteriorly, but not into a sharp dentiform process; poste- 

 rior margin of each segment bearing a transverse series of longitudi- 

 nally placed folds. Supra-anal plate produced, triangular, the apex 

 with a wide triangular emargination. Cerci short, strongly depressed, 

 apex blunt. Subgenital plate large, transverse, the median portion 

 subtruncate, the apical region very broadl}^ arcuate, cereal emargina- 

 tion slight. Anterior femora with the anterior margin bearing four 

 or five large median, one or two large apical, and an intermediate 

 series of \Q.vy short, minute spines, posterior margin with five spines, 

 no genicular spine present; tibiae about half the length of the femora; 

 tarsi equal to the tibise in length. Median femora bearing four or 



a Biol. Cent.-Amer., Orth., I, p. 68, pi. iv, fig. 35. 



