122 bulletin: museum of comparative zoology. 



form except that they appear to be much more freely movable ; basal 

 joints of club fully twice as wide as long. Thorax coarsely rugose- 

 reticulate; mesonotum without parapsidal furrows, although all its 

 reticulations form more or less distinctly longitudinal series. Pro- 

 thorax smooth, lightly punctured on its contracted part, behind 

 reticulate, with a slight but noticeable tooth at the humeral angle. 

 Scutellum very convex, semicircular, with large punctures forming 

 reticulations, each puncture bearing a short stiff hair or bristle, as do 

 also the punctures of the mesonotum, although here the hairs are not 

 so conspicuous and stout. Metanotum (postscutellum) projecting very 

 slightly as a fluted ridge; propodeum strongly depressed coarsely 

 rugose medially and behind, fuiely so laterally where it is clothed with 

 dense short whitish hair. Abdomen of the usual form, the first five 

 segments rather regularly longitudinally striate, striae coarser on the 

 first and more irregular on the third segment; apical margin of second 

 to fourth, wider medially on the third and fourth, smooth and 

 shining; sixth segment with deep, large setigerous punctures, third 

 segment the largest, a little wider than long. Propleurae rugose- 

 punctate, more coarsely so behind, mesopleurae with a few very 

 irregularly placed punctures of variable size and shape; sides of pro- 

 podeum coarsely reticulate anteriorly, finely so behind. Underside 

 of abdomen sculptured almost like the upper side. Costal vein 

 sharply defined, fuscous; stigma small, dark brown as is also the 

 oblique stigmal vein. 



This species is readily distinguishable from others occurring in the 

 Indo-Malayan region by its dark color, infuscated wings, sculpture 

 of head and cheeks, etc. In Kieffer's key (Ann. Soc. sci. Bruxelles, 

 1908, 32, p. 124) which is quite complete, it runs near S. minor Voll. 

 from Maderia and <S'. fulvipes Forst, from Germany. 



Cacellus caeruleus, sp. nov. 



Type. — M. C. Z. 9,070. Solomons: Santa Cruz, Graciosa"' Bay. 

 W. M. Mann. 



9 . Length 7 mm. Dark metallic blue, legs and antennae entirely 

 black; wings heavily infuscated, the hind ones subhyaline at base, 

 the fore ones dark fuscous anteriorly near the base. Front very 

 deeply and coarsely confluently punctate, with a short median smooth 

 stripe above the base of the antennae; occiput coarsely rugose, temples 

 and cheeks sculptured like the front; malar space short, with a deep 



