128 



I June. 



tlian lu^ad and protliorax united, about 55-jointed, the joints flattened, perfoliate, 



crowded, scarcely separable in 

 the apical portion, first joint 

 pjriform. Head deeply exca- 

 vated above, with a blunt longi- 

 tudinal median carina. Pro- 

 thorax comparatively short and 

 stout ; anterior portion of pro- 

 iiotum, occupying more than 

 one-third of its entire length, 

 very much dilated, as broad as 

 the head without the eyes, the 

 anterior margin nearly circular ; 

 this dilated portion is followed 

 by a constriction ; the posterior 

 portion cylindrical, with two 

 rather indistinct transverse ridges. Anterior femora much dilated, without markings, 

 their inner edge with one long and four or five smaller teeth, between which are 

 denticules. Wings long and narrow, subacute ; colour shining fulvous, paler (almost 

 colourless) at the base of the inner margin ; the long narrow pterostigma, and the 

 costal region generally, darker ; a long darker clouding on the apical portion of 

 the inner margin, more conspicuous in the posterior, and in these wings in addition 

 there is an ante-apical discal cloud placed on the gradate veinlets : in both pairs of 

 wings the inner end of the pterostigma is clouded with blackish-brown, which is 

 continued on the 1st intraradial veinlet, and extends into the discal area in a dilated 

 and irregular manner : neuration reddish ; thirteen costal veinlets in the anterior 

 wings ; the three intraradial cellules long and narrow, the 2nd shorter than the 1st 

 arid 3rd, which are subequal, the 3rd very narrow : radial sector with thirteen 

 closely placed branches, mostly slightly curved at each end in opposite directions, 

 the resultant narrow cellules being slightly dilated at each end. 



Length of body, 20 mm. Expanse, 46 mm. Greatest breadth of anterior 

 wing, 5 mm. 



Hah. : Matang, Borneo, August, 1899. One ? . 



A very fine and remarkable species without any very near ally. 



The type may be seen for the present in the Hope Collection, 

 University Museum, Oxford. It will ultimately be deposited in the 

 Sarawak Museum, to which it belongs. 



" The species is ])robably extremely rare. The single specimen 

 at present known, constituting the type, was captured in August, 

 1899, at an altitude of 2500-2800 feet on Mt. Matang, near Kuching, 

 Sarawak, Borneo. It closely resembles a reddish-ochreous Bracouid 

 which is common on Mt. Matang at any elevation above 1500 feet. 

 In the fresh state the sides and ventral surface of the abdomen of 

 the Mantispa are pure white, so that when seen in profile the some- 



