LEPTOMOttPHUS. 47 



tales ; intermedius anticus, minor. Proboscis elongata, suit pectore 

 inflexa, proftinde bifida, labiis elongatis. Palpi exserti, distincte 4- 

 articulati. Antennae 17-articulatae, porrectae, subcompressse ; arti- 

 culus primus cyathiformis ; secundus cupuliformis ; tertius et se- 

 quentes cylindrici; septimus-decimus minimus. Thorax ellipticus, 

 convexus. Scutellum parvum, semilunatum. Ala? obtusa?, pubes- 

 centes, incumbentes, parallelae. Abdomen cylindricum, segmeutis 8. 

 Pedes sat longi ; coxae elongatae ; femora valida, nuda ; tibia? apice 

 calcaratae, posteriores lateribus spinulosaa. 



Body long. Head nearly oval, depressed in front. Vertex convex. 

 Front broad. Eyes oblong, emarginated on the inner side. Ocelli 

 three, the middle one in front, smaller than the other two. Mouth 

 produced into a short rostrum. Proboscis very long, bent under the pec- 

 tus, deeply bifid, with elongate lips. Palpi porrect, with four distinct 

 joints; first joint small; second longer than the third; fourth as long 

 as the third. Antennae seventeen-jointed, porrect, curved ; first joint 

 cynthiform ; second elongate-cyathiform ; third and following joints 

 cylindrical, pubescent, approximate ; seventeenth very small, nearly 

 conical. Thorax elliptical, convex. Scutellum small, semilunate. 

 Metathorax convex. Wings obtuse, minutely pubescent, parallel in 

 repose ; subcostal vein very short 5^ radial ending at much beyond half 

 the length of the wing; cubital forked, its fore fork ending much 

 nearer to the radial vein than to the tip of the second fork, which ends 

 at a little in front of the tip of the wing ; subapical forked near its 

 base, its fore fork ending at a little behind the tip of the wing ; sub- 

 anal forked much nearer to the base of the wing, its fore fork con- 

 nected by a transverse veinlet with the cubital before the fork of the 

 subapical ; anal and axillary veins short. Abdomen cylindrical, with 

 eight segments. Legs rather long ; coxae elongated ; femora, especially 

 the hind pair, stout, bare ; tibiae armed with spurs at the tips ; hind 

 tibia? with minute lateral spines. Male. Abdomen cylindrical ; tip 

 obtuse, with small forceps. Fern. Abdomen subfusiform, acuminated 

 at the tip. 



1. flavum, Winn. Ent. Zeit. Stett. vii. 17 (1846). Mas et Fcem. 

 flavum, proboscide, palpis antennisque fuscescentibus, thorace nigro- 

 hirto, vittis tribus pallide flavo-fuscis, alis flavescentibus, halteribus 

 pedibusque albidis, abdomine flavido, apice nigro, tibiis pallide fuscis, 

 tarsis obscure fuscis ; Mas, abdominis segmentis intermediis fuscis ; 

 Foem. abdominis segmentis intermediis nigro-marginatis. Long. 2-2-f ; 

 alar. 4-5 lin. 



Male and Fern. Yellow. Proboscis, palpi, and antennae brown. 

 Thorax with three pale indistinct yellowish-brown stripes, clothed with 

 black hairs. Wings yellowish. Halteres whitish. Legs whitish ; 

 tibiae pale brown ; tarsi dark brown. Male. Abdomen brown ; first 

 and second segments yellow ; sixth, seventh, and eighth black. Fern. 

 Abdomen dingy pale yellow ; third, fourth, and fifth segments with 

 black sutures ; seventh and eighth black. 



