( 640 ) 



irregular row in front, besides a number of hairs on the back. The ejiimerum of 

 the mesonotum bears a downward row of four bristles before the middle and two 

 bristles behind. On the epimerum of the metanotnm there is a row of four bristles 

 (seldom three) in front, two bristles behind, situated below the stigma, with a 

 short hair in between and an additional bristle between the anterior and posterior 

 ones and on a level with the most ventral anterior one or a little farther down. 

 There are also two or three short hairs near the posterior bristles. 



Abdomen. — The abdominal tergites bear each two rows of bristles, with one 

 or two additional bristles on the back. The second to the fifth — or, at least, the 

 second to third — have on each side one apical spine. The seventh tergite bears 

 two long apical bristles on each side, standing close together (PI. XIV. fig. 74). 

 The stigmata of tergites 2 to 7 are pear-shaped, being ronnded in front and i)ointed 

 behind ; they stand close to the second row of bristles, the point mostl}' l}nng 

 within that row. The first abdominal sternite is without hairs, the second bears 

 three, and the others four bristles on each side ; the sternite of the seventh segment 

 is shallow, sinuate on each side, with the lateral lobe verv broadly rounded. 



Legs. — The bristles of the forecoxa are very numerous. The mid- and hindcoxae 

 bear two bristles posteriorly at the apex, the upper being the longer. All the femora 

 bear ventrally before the apex two hairs on the outerside and a shorter one on 

 the innerside. Besides these hairs there are on the outerside of the forefemur 

 two irregular rows, and on the innerside of the mid- and hindferaora two or three 

 subventral hairs. The tibiae are provided on the outerside with three rows of 

 hairs and a number of ventral hairs, and some additional lateral ones. There are 

 seven pairs of heavy dorsal bristles on the hindtibia, and a single bristle between 

 the fifth and sixth pair. The longest apical bristle of the hindtibia is a little 

 more than half the length of the first hindtarsal segment. The tarsal segments 

 bear on the ventral surface a number of hairs arranged in more or less regular 

 rows. The lateral hairs of the first tarsal segments are rather nnmerous, the 

 first hindtarsal one bearing eight or nine pairs on each side. The apical bristles 

 of hindtarsal segments 1 to 3 are very heavy and short, the longest apical bristle 

 of the second segment not reaching to the middle of the third. The fonrth hind- 

 tarsal segment is more than twice as long as broad. The fifth segment of the 

 tarsi bears on each side four bristles and a slenderer apical one, and on the ventral 

 surface a pair close to the base (PI. XIII. fig. 60). The measurements of the 

 mid- and hindtarsi are : — 



Modified Segments. — The eighth abdominal tergite of the <? is very large, while 

 the sternite is very much reduced. The process of the clasper (PI. XIV. fig. 71) 

 is triangular, and beset at the upper edge with bristles. The finger (f) is large, 

 rounded at the apex, and constricted in the middle, being somewhat club-shaped 

 in side view, as shown in the figure. At the hinder edge the finger is beset with 

 a regular row of hairs, of which the lower ones are longer and closer together 



