Pomona College Joitrnal of Entomouxiy 



787 



each side pinkish ainlitT. I'mir on vi-ntnil surface hhick, portion connecting 

 coxiL' pink. Mctathorax — Muscle lobe dark niid)cr, remainder liKhter, ventral 

 surface dark around coxiu with a li^rht liaud connecting them. Ahdomrn — 

 Distinctly segmented, the lateral iriar^'in of each sepneiit with a distinct 

 tubercle (Figiire 250. 5) shorter than those on the prothorax and a dark blotch 

 around each tubercle, also with a transverse median brown band which may 

 or may not be in two jtarts. and a spot between the secments near the lateral 

 margins as shown in the drawing,'. Entire surface may be covered with a line 



Figure 249. Melanoxantherium rufulus (Davidson) 



A, winged viviparous female; B, apterous viviparous female; C, cornicle of winged 



female; D, cornicle of apterous female. 



white powder, which is usually thickest between the .segments. Anal plate 

 larixe, hairy, amber. Cormc/fs— (Fisrure 249 C). Va-siform, very narrow 

 throughout the ba.sal half and enlarged and contracted in the apical half .so 

 that the mouth is wider than the base but much narrower than the widest 

 part, contracted just before the mouth, which is Haring. yellow or orange 

 throughout, with often a dusky tip : length O.AS mm., width at ba.se 0.05 mm., 

 width at narrowest place 0.04 mm., width at widest place 0.08 mm., width of 

 contraction just before the mouth 0.45 mm., width of mouth 0.06 mm. Legs — 

 Stout, hairy; front legs much shorter than the rest, middle legs longer than 



