14 SJÖSTEDTS KILIMANDJARO-MEBU EXPEDITION. 21: 2. 



P. albescens B.-L., P. nigromaculatus Wedenissow, P. quadrimaculatiis B.-L., P. rufi- 

 cauda B.-L., P. civilis B.-L. — Six species are at present in my unpublished manuscript. 

 Only two of the species named below occur in the District here treated. 



Periscyp Ms tri via lis . 



PerisqipMs trivialis Getst. Gliederth. Fauna Sansibar, p. 526. — B.-L. 1 p. 293. — Patria: In 

 the Museum at Berlin are specimens of this species preserved found during the expedition of v. D. Decken 

 at the lake Jipe and also from M\. Karamo at the river Pangani. 



Perisci/pJiis pulcJier. 



Perisajphis piUcher B.-L. Landisop. in Deutseh Ost-Afrika. IV. p. 7 Tab. f. 12. — l\atria: I only know 

 one specimen of this species, whieh was taken at Tanga and is in the posession of the Museum at Hamburg. 



Microcercus nov. gen. 



Antennarum flagellum arUculo priore altero breviore. Oculi majores; ocelli nume- 

 rosi, viginti vel plures. Mandibnlarum lamina interior penicillis duobus in mandibula 

 dextra, penicillis tribus in mandibula sinistra. Seta inferior radice longo, solido, supra 

 ramis crinitis numerosis instructo. Maxillse prioris paris lamina exterior denlibus 10 

 (4 + 6: subintegris, nonnullis sfepe in apice leviter lissis); lamina interior post spina apicali 

 nulla, penicillis ambobus longis, superiore paulo breviore. Maxillipedum articulus 

 labialis latior, mala brevior, spina mediocri et aculeis 2 posterioribus manifestis; palpus 

 latior, articLilo tertio vix duplo breviore quam latiore, apice crinitus. Epistoma linea 

 superiore saepe integra seepe deleta. Foramina antennarum minora, tubcrcula antennaria 

 deleta. Clypeus in lateribus lobalus; lobi plerumque ad medium producti, ut crista in 

 medio abbreviata tingatur. Pleurte capitis concretse; linea marginalis verticalis utrinque 

 ad fronlis marginem producta. Trunci segmentum 1. epimero crasso, altecincto, supra 

 sulco profundo suturali a medio segmenli discreto, post fisso, rarissime integro. Seg- 

 mentum 2. epimero plerumque flsso, pronoto magno. Margo posterior segmentorum 

 priorum subrectus, angulis posticis rotundatis. Marsupium nulluni? Caudee segmenta 

 3. 4f. 5. epimeris tetragonis; epimera segmenti 5. valde convergentia. Pleopodes omnium 

 parium tracheis muniti. Telsum medio latiore, subtetragono producto, apice rotundato. 

 Uropodum scapus oblonge subrectangulus. Exopoditum parvum vel minimum, apicale 

 vel superius. Endopoditum mediocre telso vix brevius. 



Of the species belonging to this genus I know thirteen, of which six are unde- 

 scribed. Of the seven described species I have previously referred six of them to the 

 genus PeriscypMs: P. anomcdus Gerst., P. leucocephalus B.-L., P. otiosus B.-L., P. 

 obtusicauda B.-L., P. armadilloides B.-L., P. nanus B.-L. — The seventh species belong- 

 ing to the genus is Mesarmadillo senegalensis Dollf. 



From the district of Kilimandjaro the two species mentioned below are known. 



Microcercus anoinalus. 



Tab. I, Fig. 34—39. 



Cnbaris anomala Gehst. Gliederth. Fauna d. Sansibar, p. 526. — PeriscypMs 

 anomalus B.-L., Landisp. Deutsch Ost-Afrika, IV, p. 5 Tb. f. 3 — 4. — Patria: This species 



