752 ASILID^ 



at its end into a long prong which curves round and finally ends in a strong 

 overlapping rather upturned hook ; the inner margin of this incurved part is 

 fringed with long pale yellow hairs ; beneath are two shorter but broad basal 

 plates, between which is a broad shining dark chestnut rounded middle piece 

 which curves up between the lateral lamellae and bears slight pale pubescence ; 

 above at the base is a polished black bare basal plate immediately after the 

 eighth abdominal segment followed by two contiguous erect oblong smaller 

 lamellae which are chestnut behind but darker in front and which bear fairly 

 dense whitish or brownish yellow pubescence ; penis reddish brown. 



Legs dirty brownish yellow ; coxae grey, front pair bearing a few thin 

 pale hairs at the tip in front ; hind femora with a more or less distinct 

 longitudinal darkened streak on the apical half, both in front and behind 

 while a similar but lighter brown antero-dorsal streak usually occurs on the 

 middle femora, and sometimes a still less distinct streak on the front femora ; 

 anterior femora with a black spot in front at the extreme tip, and the hind 

 femora with a similar spot in front and behind ; anterior tibiae black at the 

 tip, and the middle tibiae usually blackish all down the underside, while the 

 hind tibiae have two blackish streaks which run together and make the apical 

 third all black ; tarsi usually all black after the tip of the basal joint, but in 

 pale specimens the base of the second or even third joint is yellowish ; 

 anterior tibiae with two or three slight postero-ventral bristles ; hind tibiae 

 with two slight pale antero-ventral bristles, and one small anterior and one 

 small dorsal one just below the middle ; apical circlets of all tibiae mainly 

 consisting of a few rather long pale bristles on the underside ; posterior 

 femora wdth some inconspicuous yellow subapical bristles. 



Wings (fig. 405) proportionately short (sometimes very short), hyaline or 

 with a slight greyish tinge but ochreous about the extreme base ; cubital fork 

 of moderate length but varying slightly, rather more than half the length of 

 the first submarginal cell, and with its stem usually less than half the length of 

 the fork and usually considerably longer than the stem of the second posterior 

 cell though not always so especially in small specimens ; fourth posterior cell 



Fig. 405. — Leptogasti r n/lindrica cj. X 13. 



very little widened to the wingmargin ; discal cross-vein placed a little 

 beyond the basal third of the discal cell ; small cross-vein absent, and conse- 

 quently the upper branch of the postical fork forming part of the lower 

 margin of the discal cell for a short distance ; anal cell well open and in fact 

 narrowest at about half-way between the base of the postical fork and the 

 wingmargin. Squamae (alar) small, and without any fringes ; thoracal pair 

 little more than a pale yellow stripe. Halteres with very long brownish 

 yellow stalks and a rather darker knob. 



$ . Extremely like the male. Ovipositor (when viewed laterally) appearing to 

 form a blunt and short truncate last abdominal segment, about half the 

 length of the previous segment ; abdomen not at all knobbed at the end but 

 slightly compressed so that a dorsal ridge is visible. 

 Length 9 mm. to 13 mm. 



This species varies in the length of the wings, and in the extent and 

 intensity of the dark markings on the legs, but may usually be distin- 

 guished from Z. gutiiventris by the absence of the small cross-vein, by the 



