BURR, DERMATOPTERA. ö 



abdominis lateribus convexis, et apicalibus rugulosis; pygidium brevissimum, obtiisum; 

 forcipis bracchia maris basi triquetra et fortiter dentata; dehinc attenuata, bracchio 

 sinistro sensim, dextro fortiter et angulatim, incurva; feminse triquetra, subsinuata, 

 margine interno crenulato. 



Long, corporis . . . 16—19.5 mm. . . . 10 — 22 mm. 

 » forcipis . . . 3—3,0 ... 4 » 



Stout, and fairly largc; smooth and shining, jet black except tlie red head and 

 yellow feet. 



Antennae dirty testaceous, paler at the base, then darker, with 20 segments, 

 all pubescent; 3 is long and cylindrical, 4 and 5 together equalling 3 in length, nearly 

 cylindrical; the rest lengthening, cylindrical. 



Head clear brick-red, the mouth-parts darker, or nearly black. 



Pronotum broadened posteriorly, the margins straight but posterior angles 

 rounded, lateral borders almost concave as the margin itself is turned up, thus 

 raaking a small triangulär depression; the disc is flat and smooth. 



Meso- and metanota smooth, and ample. 



Feet clear testaceous. 



Abdomen smooth, dull black, the last 3 segments somewhat rugulose: seen 

 from the side, the segments are convex, the convexity being more apparent in each 

 Segment towards the apex of the abdomen; in the last four segments, the sides are 

 also rugulose. Ventral segments smooth. 



The last abdominal segment in the male is large and quadrate, but distinctly 

 broader than long, with a faint median depression, and finely rugulose, the pattern 

 being formed by rows of shallow and very small punctulations. 



Penultimate ventral segment of the male is ample, quadrate and rugulose. 



Last dorsal segment of the female resembles that of the male, but is somewhat 

 narrower apically. 



Pygidium in both sexes is only a fold in the chitin between the forceps. 



Forceps of the male with the branches stout and triquetre at the base, where 

 there is a strong depressed tooth on the inner margin; the two branches are curved 

 differently, as in the typical species; the left branch is gently curved inwards through- 

 out its length; the right branch is suddenly bent inwards at an almost acute angle 

 before half its length and after this bend quite straight; the branches are attenuate 

 after the basal third and unarmed after the base. 



In the female the branches are triquetre and stout, attenuate about half way 

 down, contiguous, denticulate on the inner margin und subsinuate. 



The larvae are quite different from the adult insect; the head is dull black 

 like the rest of the body ; the feet are dirty yellow, with a distinct f uscous ring; the 

 build is more slender and the forceps are more slender unarmed and nearly straight. 



Kiliiiiandjaro: Kiboscho. »Im obersten Teil des Gürtelwaldes an der Grenze 



