516 On Two new Hpecies o/" Myrmeleonidae. 



being smootli, with two faint yellow marks posteriorly ; tlie 

 posterior angles each with a large yellowish spot extending 

 round tlie eyes to the sides of the front ; on the front the 

 antennal sockets are yellowish ; there is a short yellowish 

 median line below the antenna? and a broader median yellowish 

 line on the clypeus, the posterior margin of which is also 

 yellowish, as are the bases of the mandibles (otherwise the 

 front is black) ; pronotum slightly longer than broad and 

 very slightly narrowed anteriorly ; a transverse sulcus divides 

 it into two subequal parts, on tiie anterior part is a trans- 

 verse row of four yellowish spots and on the posterior another 

 row of three similar spots, all more or less rounded, and there 

 arc sparse, long, erect black hairs. On the front part of the 

 raised portion of the mesonotum are two small yellowish 

 spots (seldom visible), otherwise the thorax is spotless above. 

 Legs stout, yellowish, all the femora and tibife with a piceous 

 line externally and an additional ))iceous line internally on 

 the intermediate and posterior femora, and an annulation of 

 the same colour near the base of the posterior tibife ; tarsi 

 piceous externally, the basal joint yellowish, as long as the 

 second to fourth united, the fifth nearly equalling the first to 

 fourth, spurs piceous, much sliorter than the basal joint. 

 Abdomen slender, uniformly fulvous above, paler beneath (but 

 in the female the apical portion often passes into blackish 

 above) ; in the male the abdomen is terminated by two up- 

 directed valvules (or appendages), closely applied one to the 

 other, with a yellow wart at their base, and clothed with 

 long and strong black hairs ; in the female are two short, 

 stout, cylindrical interior appendages *, clothed with long 

 black hairs, sliorter than the narrow, swollen, terminal dorsal 

 segment, whicii is clothed with similar hairs. 



Wings long, rather broad, acute at the apex, the posterior 

 scarcely shorter than the anterior and only slii^htly narrower; 

 costal margin of the anterior straight ; the j^ostcosta entering 

 the inner margin soon after the first fourth of the length of 

 tlie wing ; both pairs are hyaline, highly iridescent, uniformly 

 tinged with pale fulvous, which deepens slightly in the apical 

 portion, and quite without markings, excepting the conspicu- 

 ously large oval whitish pterostigma ; neuration fulvous, the 

 network very dense, and to this is largely due the uniform 



* The presence of these short appeiidapres or cerci would soem not 

 unnatiually to indicate that the individuals possessing: them are males, 

 and not females ; but in this case it is not so, for, apart from other 

 characters, they are ])resent only in those examples in w liicli the knob 

 (or "pelote') at the extreme base of the inner maririn of the po^terior 

 winjrs is U) be seen, and this latter is a sure indication of the male in 

 those Myrmeleonida' that possess it. 



