Mr. M. Burr — Notes on the Forficularia. 387 



Genus IV. Dicrana, nov. 



A gcnerc Pygidicrana differt proiioto subrectangulari, soepius sub- 

 quadrato ; a genere Cranopygia differt segraento penultimo 

 vcntrali arnplo, lato, rotundato. 



Type, Pygidicrana frontalis, Kirby. 



The rectangular pronotum readily separates the genus from 

 Pygidicrana, but it only differs from Cranopygia in the 

 broad, rounded, penultimate ventral segment. 



The African species form a natural group with a very 

 distinctive coloration. I have not examined an undoubted 

 P. caffra, but it appears to resemble P. bettoni and its allies 

 so closely that 1 do not hesitate to range it here. 



P. kallipyga has marked affinities with Cranopygia in the 

 form of the last dorsal segment and the forceps, but the 

 penultimate ventral segment of the male is so broad and 

 decidedly rounded that it is not possible to place it there; 

 this is unfortunate, as its position near D. finschi appears 

 hardly natural. 



Table of Species. 



1. Segmentum penultimum ventrale $ lateribus 



rectis, angulis rotundatis, niargine postico 



leviter sinuato : species africanas. 



2. Forcipis bracchia S brevia, lata, fortiter 



arcuata. 



3. Forcipis bracchia $ ante apicem dilatata, 



laminam rectangulareni elficientia .... 1. bettoni, Kirb. 

 3.3. Forcipis bracchia rf ante apicem dente 



forti armata 2. caffra, Dohrn. 



2.2. Forcipis bracchia 3 leviter arcuata. 



3. Elytra vittis angustis 2 rufescentibus 



^ ornata 3. frontalis, Kirb. 



3.3. Elytra macula pallida ornata 4. separata, sp. n. 



1.1. Segmentum penultimum ventrale $ totum 

 rotundatum. 

 2. Statura majore ; capite rufo ; segmentum " 



ultimum dorsale <5 angulis valde plicatis. o. kallipyga, Dohrn. 

 ■2.2. Statura minore ; capite nigro, tlavo-notato : 

 segmentum ultimum dorsale <5 inerme. 

 3. Pronotum nigrum, albo-limbatum ; elytra 



fusca, uuicoloria G. horsfieldi, Kirby. 



3.3. Pronotum nigrum, tJavo-marmoratum ; 



elytra nigra, flavo-maculata 7. finschi, Karsch. 



Dicrana separata, sp. n. 



Statura mediocri ; testacea, nigro-variegata ; pronotum parallelum ; 



