98 £AST AFRICAN POLYDESMOIDEA—COOK. vol. xviu. 



HABRODESMUS HARTMANNI (Peters). 



Strongijlosoma hartmanni, Peters, Monatsber. d. K. Preuss. Akad. d. Wiss. zu 

 Berlin, p. 534, 1864. 



"This beautiful species is, as regards tlie habit, the form of the carinae, 

 and tbe great leugth of the auteuuae aud legs, very close to 8. aculea- 

 turn, but is distinct in the coloration. Head, the middle of the first and 

 the greater part of the remaining segments reddish-brown or blackish- 

 brown ; the margin of the first segment, the posterior margin of the 

 following segments, the carinte, two spots on the anterior subsegments, 

 and the apex of the last segment ocher yellow ; antennae dark brown, 

 yellow at the articulations ; legs and ventral surface grayish-brown." 

 (Peters.) 



Length, 27 mm.; width, 2.3 mm. 



Locality. — Sennar. Three specimens in the Berlin Museum collected 

 by Dr. Hartmann. 



The following notes were made on the type specimens: 



Closely related to the type of the genus. Segments with posterior 

 broad yellow band and distinct transverse furrow. 



Sterna of posterior legs of each segment with conical spines. 



Antennae rather long, but not so much as in Scolodesmus. 



Genitalia ending in a spiral curve, but the point blunt and rounded. 



HABRODESMUS ACULEATUS (Peters). 



(PI. V, figs. 6, 7.) 



Strongylosoma aculeatum, Peters, Monatsber. d. K. Preuss. Akad. d. Wiss. zu 

 Berlin, p. 81, 1885. 



Antennae long. 



Lateral carinae triangular, reflexed, acute at posterior corner. Last 

 segment rostriform. 



Legs long, the third joint almost twice as long as the first and second 

 taken together. 



Color: head, antennae, and dorsum vinaceo-fiiscous; legs, venter, and 

 the apices of the carinae, pale yellow. 



Segments, 20; pairs of legs, 31 (the three anterior segments with a 

 single pair each). 



j Leugth of female, 25 mm.; antennae, 4.5 mm.; last legs, 6.3 mm.; 

 width of head, 2.2 mm.; width of body, 2.7 mm. 



' Locality. — Terra Boror, 18° south latitude. The type specimen is 

 dried; it has the inferior carinae and transverse dorsal sulcus distinct, 

 and the last segment much projecting. 



