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JAMES WATERSTON. 



and femora to near tLe apex blackish brown ; trochanters paler. Abdomen bluish 

 black, shining but hardly metallic ; ovipositor light brown, the sheath black. 



Head.' — The eye is larger and more prominent than in atriclavus, and the head thus 

 a little broader. In general the chaetotaxy is the same, the frons being very bristly. 

 The infra-scapal bristles (10) are arranged differently ; in mauripennis they form a 

 U-shaped row, dipping down to above the clypeus ; in atriclavus they are set in two 

 horizontal rows (6, 4). Antennae (fig. Id) : scape hardly swollen (7 : 2), with two 

 long ventral bristles, one before and one after one-half ; pedicel (3 : 2), one-third of 

 scape ; ring joint, one distinct joint succeeded by two laminae, much more clearly 

 separated than in the 5 of the preceding species ; joints one and two of funicle equal, 

 and about one-twelfth longer than the third ; club segments in ratio 12 : 9 : 7. The 

 club is hardly appreciably expanded, the whole antenna after the ring joint being 

 cylindrical. >Sensoria numerous ; on joints of funicle : (1st) 1 (upper edge), 10 

 (outside), 1, 10; (2nd) like 1st; (3rd) 2, 12, 2, 12; on club: (1st) 2, 9, 2, 9 ; 

 (2nd) like 1st ; (3rd) 2, 3, 2, 3. Length of antenna, 1*3 mm. Mouth-'parts : mandibles 

 of the same type as atriclavus, but they might be better described as bidentate, the 

 upper inner edge being rounded off after the second tooth. Maxillary palpus a little 

 over two and a half times as long as the labial. 



Fig. 3. Tetrastichus mauripennis, sp. ii., $ ; a, right wing ; h, radius ; c, junction 



of marginal and submarginal. 



Thorax.' — Pronotum with moderate regular raised reticulation, the mid region 

 weakly chitinized ; on each side of the mid line are over 30 minute bristles, becoming 

 stronger posteriorly, while there is a posterior row of 20 bristles ; episternite and 

 sternum uith coarse raised pattern. Mesonotum with a deep central furrow ; inside 



