1026 REPORT OF THE HARVARD AFRICAN EXPEDITION 
10. Pseudopenis represented only by the bases itevarmc: 2 sc . cute i nee ee 
PS ek tanta) tee ea ee Trichodectes sternatus Bedford and T. emarginatus Bedford. 
Pseudopenis entire, Woshamedi, <1... .05..-2.40¢.. 00090, ae ee i 
11, Arms of the basal plate articulating to the tips of the arms of the pseudopenis; basal plate 
not attaimime the thorax. << cg. ¢ db sahicedebetscae es Trichodectes congoensis Ni. sp. 
FEMALES 
From this key it is necessary to omit the species Trichodectes robertsi Bedford, 
T’. emarginatus Bedford, and 7’. baculatus n. sp., of which the females are unknown. 
1. Claws of middle and posterior legs spinose-serrate on inner face..............2...000- 2. 
Clawa. of middieand posterior leas smooth...2: << .t...3 sce. shaven toes unsure 4, 
2. Anterior margin of head without distinct median notch ?7richodectes diacanthus Ehrenberg. 
Anterior maream! of head with a distimet mediam motch,......+...¢+s0)+e.ce--es eee es Bi 
3. Abdomen with a distinct, internal, sclerotic sac of cylindrical form.................. 
Trichodectes lindfieldi Hill. 
Abdomen with an internal sac, but this not cylindrical.... Trichodectes dendrohyracis n. sp. 
4. Head distinetly wider than lone...0...27.0..<...0. 6. Eurytrichodectes paradoxus Stobbe. 
Head with width: at. least subequal’ to lenethy «iach Mn sade ass Senos see ees 5. 
5, wnlead awithombh a distinet anterior motels... ae + oats peerduns yamine hv > eels olelele aaah 6. 
ead witn a. Clshineh amlenor,NObGN.-....< 20s oan nee teem ei eons 2 cuca ed eel eae ee 1. 
6. Intersegmental membranes of abdomen granulate........... Trichodectes granulatus n. sp. 
Intersegmental membranes of abdomen not granulate......... Trichodectes serraticus Hill. 
7. Posterior lobes of the head with small and rather transparent but clearly distinct processes. 
Trichodectes univirgatus Neumann. 
GP a 0) 'W. wy Ss pe ee! a a) 18) 0) a) 6, “G, '0) 18) 1010] wie 06) we, 6) 0 ue, 0/0, 18! (0) 0) (Ole, ip, 1004.6): 0) @ lel ae Ab 
Posterior lobes of bead ywathouwt such processes;..<.s..- 4524. cie es = oe heer e se eee oe 8. 
8. First apparent sternite of the abdomen with a heavily sclerotic transverse bar extending 
HB GIRMTE SCRE LON ALG are, «cot te, ed \ <2 Wipkeg eee Meee eee i Trichodectes sternatus Bedford. 
First apparent sternite of abdomen without such bar........ Trichodectes congoensis n. sp. 
Eurytrichodectes paradoxus Stobbe 
Text Fig. No. 18 
1913. Eurytrichodectes paradoxus Stobbe, Entomologische Rundschau 30:111; figs. 3-5. 
Previous Recorps. Known only from the record by Stobbe, from Dendro- 
hyrax sp., in the Berlin Museum, without nearer indication of origin. 
PRESENT Recorp. A single female and two nymphs from Procavia adolfi- 
friederici, Lulenga, Beuci1aN Coneo, March 2, 1927 (J. Bequaert). 
Notes. The accompanying figure will supplement the rather inadequate 
figures given by Stobbe. Unfortunately no male is available. While the species 
appears at first glance very peculiar and certainly should be separated generically 
from Trichodectes, I am inclined to believe that it is actually not so remote from 
some of the species here dealt with. It impresses me as belonging to the same 
stock as do some of the other species infesting the Procavidae. 
Trichodectes diacanthus Ehrenberg 
1828. Trichodectes diacanthus Ehrenberg, Symbolae Physicae. 
1913. Eutrichophilus diacanthus (Ehr.) Stobbe, Sitzungsberichten der Gesellschaft naturfor- 
schender Freunde, Berlin 8: 382; tf. 9. 
1928. Eutrichophilus diacanthus (Ehr.) Bedford, Report Director Veterinary Education and Re- 
search, Union of South Africa, 13-14: 848; pl. 2, f. 6. 
