from the Oriental Zoological Region. 61 



third and fourth joints are nearly equal in length. Head 

 below the ocelli thickly covered with longish white pubes- 

 cence, the vertex more spai'sely with shorter pubescence 

 intermixed with long fuscous hair. Clypeus smooth and 

 shining, depressed, the sides slightly, the apex more distinctly 

 raised ; the front and vertex strongly punctured, smooth at 

 the sides of .the ocelli, which are distinctly raised. Man- 

 dibles at the base thickly covered with white iutermixel 

 with fulvous hair; the palpi black. Pronotum strongly 

 punctured, thickly covered with silvery pubescence; the 

 sides of the pleurfe with stout widely separated keels. Meso- 

 notum deeply rugosely punctured, the punctures running 

 into reticulations and much larger and deeper towards the 

 apex ; the hair is long and black. Scutellura strongly 

 rugosely punctured except in the middle on the extreme apex 

 above, this portion having a shallow furrow in the middle ; 

 the hair on the base is black, on the apex longer and paler ; 

 the postscutellum is smooth in the middle, the sides punc- 

 tured. The base of the median segment is thickly covered 

 with depressed silvery pubescence, which completely hides 

 the texture ; the apex is closely reticulated and covered with 

 long fuscous hair. The middle of the mesopleura^ is sparsely 

 and shallowly punctured and thickly covered with white 

 pubescence ; the metapleurse reticulated except at the base 

 above and in the middle. Mesosternum rugosely punctured 

 except in the middle. Legs thickly covered with long white 

 hairs, the spurs pale. Wings fuscous violaceous ; the basal 

 abscissa of the radius is straight, oblique; the apical is 

 roundly curved above the middle ; the first transverse cubital 

 nervure is oblique, with only a slight curve. Basal segment 

 of the abdomen black except at the apex, and is covered with 

 long white hair ; the ventral keel at the a|)ex projects into a 

 short somewhat triangular tooth ; the second to sixth segments 

 are covered with fulvous hair; the last segment is entirely 

 black and thickly covered with long black iiairs ; the middle 

 is smooth and shining ; the last ventral segment has on either 

 side a distinct smooth conical tooth, followed by a much 

 larger one, which is curved above and obliquely narrowed on 

 the lower side. 



This species agrees in form, pubescence, and coloration 

 with the male of J/, sexmacidata^ tSwed., but is quite distinct. 

 The two species may be separated as follows : — 



Scutellum in the middle above broadly smooth and 

 shining throughout ; the median segment not 

 thickly covered with white pubescence ; the sides 

 of the apical two ventral segments marked with 

 stout oblique keels sexmacnlata. 



