132 RECORDS OF THK AL'STKAl.IAN M I" S K U M . 



Dark olive brown, with the postei'ior iiiar<riii ot ^errnients red- 

 bi-owii. I^egs dark. 



Head siiiootli, sliowincr indistinct transverse wrinkles. Four 

 labral ])ores. Two shallow impressions above the pores. 

 Median sulcus weak, obsolete between tlie antenna?, wliere the 

 liead is rather flattened ; a sniall <liniple may be accidentally 

 found between the eyes, the sulcus breaking ofV suddenly in the 

 dimple, and re-appeai'ing frontwards. Eyes lounded ; the 

 distance between them equal to about twice the diameter of an 

 eye ; composed of distinct, though flattened ocelli numbering 

 foi'tv-seven to flfty, arranged in seven rows (7-[-8H-8+8-}-7-|- 

 6+3— 9 + 9 + 9 + 8+ 7 + 5 + 3). Antenna- very short, uot 

 reaching the posterior margin of tlie tirst tergite ; the distance 

 between the sockets equal to the length of more than four 

 pi'oximal joints; the four basal joints bare, showing only a few- 

 apical set* ; the setfe grow gradually more numerous on the 

 last joints ; fifteen seiisoiy cones at the end. Micrometrical 

 measurements of joints : 1st joint 0.544 mm ; 2nd, 0.736 ni m ; 

 3rd, 0.576 m/m; 4-th, 0.480 mm; 5th, 0.448 mm: Hth. 

 0.416 m/m ; 7th and 8th, 0.096 mm : total length, 3.296 m m. 

 Diameter of 2nd joint, 0.576 m/m ; of 6th, 0.512 mm. 



First tergite smooth along the posterior max^giu and covered 

 with more or less distinct, minute stria; on the remaining 

 surface ; the sides fall short of the following segment, and are 

 somewhat irregulai- in shajie ; the anteiioi- margin is genei'ally 

 straight, and the posteiior gently convex, the lattei- showing 

 occasionally a faint notch ; the angle is more oi- less rounded, 

 sometimes even truncate, both cases being liable to appear on 

 the same sf)ecimen. The marginal sulcus is modej-ately ini- 

 ])re8sed and located quite close to the margin. 



Ventral suiface of the second segment somewhat excavated, 

 moderately swollen on each side. 



Scobinas fi'om the eighth to al)out tlie tliirtieth or thirtv- 

 tViird segment. The dimple is renifoini and very deep (PI. 

 xvii., fig. 51) ; the posterior field is moie or less triangular, 

 rather elongate and dull, though without distinct stiia\ 



Anterior, concealed j)art of the prozonite witliout (•(Hicentiic 

 strife, yet not smooth, showing under sufticient enlaigement 

 minute and short, irregular, tiansverse wi-inkles or striav The 



