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PROCEEDINGS OF THE NATIONAL MUSEUM. 



VOL. CI. 



rounded. Mandibles of nearly equal width throughout; seen from 

 the front, strongly bent at base, then nearly straight, apical border 

 short and very feebly arcuate. Clypeus strongly carinate at middle, 

 the median anterior lobe short and broadly rounded. Eyes large, as 

 long as their distance from anterior borders of head. Antennal 

 scapes surpassing occipital corners by less than one-third their length ; 

 second funicular joint about one-third longer than the first, third 

 joint two times as long as broad, joints 4-10 gradually decreasing in 

 length, terminal joint nearly as long as the two preceding joints 

 together. Thorax a little narrower than the head, pronotum a little 

 longer than broad and about three times as long as the mesonotum. 

 Mesonotum oval and nearly as long as broad. Epinotum longer than 

 pro- and meso-notum together, in profile nearly straight above, with 

 the base twice as long as the declivity and broadly rounding into it. 

 Petiolar node in profile as high as long, the anterior face vertical 

 and rounding into the dorsal surface, which is convex and separated 

 by an obtuse angle from the flat, vertical pos- 

 terior face ; from above a little longer than 

 broad and gradually increasing in width 

 from front to rear. 



Head, thorax and appendages moderately, 

 gaster strongly, shining. Mandibles shining, 

 delicately striolate longitudinally. Clypeus 

 striolate. Head in front with longitudinal 

 striae, which are finest and more dense on 

 cheeks and immediately inward from the 

 eyes and coarser and more irregular me- 

 dially ; vertex and occiput with shallow fove- 

 olate punctation and subreticulate striae, 

 Pronotum and epinotum finely and densely striate transversely, the 

 pronotum with a median area where the striae are very obscure and 

 with several coarse punctures. Mesonotum with sparse longitudinal 

 striae. Petiolar node with sparse and coarse punctures and sub- 

 reticulate striae. Gaster regularly punctate. Appendages densely, 

 finely, and shallowly punctate. 



Hairs abundant, moderately long and suberect. Legs with short, 

 recumbent hairs in addition to longer suberect ones. 

 Black ; tip of gaster and the appendages broAvnish red. 

 Type Zoca7?7?/.— Honduras : Lombardia; Cecilia. 

 Coty'pes.—C2.t. No. 24440, U.S.N.M. 



This species, which is dedicated to the English myrmecologist, H. 

 St. John Donisthorpe, is related to L. icheeleri Forel. The latter 

 species differs in its relatively longer head and antennal scapes and 

 in sculpture, the entire body being densely punctate and opaque. 



Fig. 6. — Leptogenys (Lep- 

 togents) donisthokpei, 

 NEW SPECIES. Head of 



WORKER. 



