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JAMES WATERSTON. 



tibiae reddish brown ; hind tibiae apically lighter. Compared with exaratum the 

 antennae of octodentata are longer and thinner, with the fourth and ninth joints 

 relatively shorter, and the club distinctly so (only three-fourths of the scape), and there 

 are more sensoria (6-7) on the apical half of the first normal funicular joint. Abdomen 

 slender, and so elongate apically, that the stylets cut a. line between the posterior edge 

 of tergite i. and the apex of the sheath of the ovipositor at a point 7:6. In exaratum 

 and diversicornis the abdomen is stout and the ovipositor short, so that the stylets lie 

 at a point 16 : 9. The puncturation of the abdomen is variable, but in octodentata 

 it is coarse and there are only narrow gleaming sutures between the tergites. The 

 puncturation is finer and the sutures broader in exaratum. In the fore wings octodentata 

 and diversicornis have 24—26 bristles on the submarginal, and the latter species has 

 comparatively few scales, except below the marginal, where they lie 3-7 deep. There 

 are practically none on the subapical cloud. S. octodentata has very scaly wings, many 

 scales occurring in incomplete lines on the subapical cloud. Below the submarginal 



Fig. 6. 



Propodeon of Stomatoceras diversicornis, Kirby. 



single scales occur nearly to the base. Near the base of the hind wings octodentata 

 has a costal row of about ten minute bristles ; in diversicornis there are three times 

 as many bristles in this position. In octodentata the straight bristles of the frenulum 

 are about eight, in diversicornis twenty-two, in number. In all three species the 

 structure of the hind legs is the same. Kirby's description of the under side of the 

 femur : " The middle tooth distinct, the others merely undulations " is misleading. 

 The femur is fringed with minute equal denticles, and there is nowhere a major tooth ; 

 " the middle tooth " referred to being really a femoral lobe and itself edged with 

 denticles (fig. 2, c). 



Family ENCYRTIDAE. 

 Genus Eupelminus, D. T. 

 Eupelminus, Dalla Torre, Wien. Ent. Zeit., xvi, p. 85 (1897). 

 This genus, which comprises at present wingless Eupelmines with normal fore 

 femora, straight-margined abdominal tergites and an unprojecting ovipositor, not 

 improbably contains the apterous members of more than one genus. But the 



