102 C. M. F. von HAYEK 
SEXUAL DIMORPHISM. The species known to me do not appear to display any 
distinct sexual dimorphism. 
SPECIES INCLUDED IN THE GENUS 
The Schenkling catalogue (1925 : 18) lists the names of twenty-six species, of 
which three are regarded as synonyms. Three species have been described since 
the publication of the catalogue. The generic attribution of all these species 
has been confirmed, either by examination of the type-material, determined 
material or from the description. It has not been possible to confirm all the 
synonymies. One species, Dilobitarsus fleutiauxi Paulian, 1947, is here transferred 
to Elasmosomus. As it is a secondary junior homonym of E. fleutiauxi Schwarz, 
1906, the replacement name delamarei is proposed. 
Elasmosomus alluaudi (Candéze) 
Dilobitarsus alluaudi Candéze, 1895p : 52. 
Elasmosomus alluaudi (Candéze) Schwarz, 19026 : 297. 
The description is based on an unrecorded number of specimens from Madagascar, 
Diego-Suarez, Montagne d’Ambre collected and submitted by Alluaud. 
Syntypes examined: MADAGASCAR: I 9, Madagascar, Diego Suarez 17, Ch. 
Alluaud, 1893; Dilobitarsus alluaudi Cand. [Cand.] Cand. det. [Fleut.]. 1 9, same 
locality and collector; alluaudi Cand. Comparé au type, Mus. Brux. 1902 [Fleut.]; 
Dilobitarsus alluaudi Cand., ex type. 5 ex., same locality and collector (MNHN, 
Paris). 
The designation of a lectotype is postponed until the ‘type’ material in the 
IRSNB, Brussels, to which Fleutiaux’s label and Fleutiaux (1902c; 298) refers, 
has been examined. 
Elasmosomus apicalis Schwarz 
Elasmosomus apicalis Schwarz 1905b : 275. 
The description is based on an unrecorded number of specimens from [TANZANIA] 
Usambara, Nguela. 
Type-material: ?>DEI, Eberswalde. 
The generic attribution is based on the description. 
Elasmosomus bacillus (Candéze) 
Dilobitarus bacillus Candéze, 1881 : 3. 
Elasmosomus bacillus (Candéze) Schwarz, 1902b : 214. 
The description is based on an unrecorded number of specimens from ABYSSINIA, 
collected by Raffray. 

