334 TIPULIDit. 



Caput transversum. Oculi rotundi, reraoti. Eostrum breviusculum, 

 crassum, nntiee superne acuminatum. Palpi 4-articulati, cvlindrici, 

 iiicurvi, pubescentes ; articulus primus brevior ; secundus et tertius 

 sequales, subclavati ; quartus longissimus, angustior. Antennae 13- 

 articulatse, porrectse; articulus primus subcyliudricus; secundus parvus 

 globosus aut brevi-cyathiformis ; tertius oblongus, interdura difformis ; 

 tredecimus minor, simplex. Protliorax distinctus, elevatus. Tliorax 

 convexus. Alee mediocres, divaricatee. Abdomen segmentis octo, 

 crassiusculum. Pedes modice longi, validi, inermes ; coxae breves; 

 tibiae apice bicalcaratae. Mas. Antennaa pectinatae, tborace vix bre- 

 viores. Abdomen cylindricum ; anus elevatus, clavatus, varie appen- 

 diculatus. Foem. Antennae simplices, breviores. Abdomen lauceolatum 

 vel fusiforme, ano plcrumque elongato, stylis 2, subensiformibus. 

 Body large, oblong, robust, nearly smooth, generally shining. Head 

 transverse. Eyes round, remote. Proboscis thick, rather short, pointed 

 above in front. Palpi four-jointed, cylindrical, curved, decumbent, pu- 

 bescent ; second and third joints of equal length, subclavate, longer 

 than the first ; fourth very long, more slender. Antennae thirteen-jointed, 

 porrect ; first joint nearly cylindrical ; second small, globose or short- 

 cyathiform ; third oblong, occasionally distorted ; thirteenth smaller than 

 the others. Prothorax distinct, elevated. Thorax convex, elongate- 

 oval. Wings moderately broad, divaricate, lanceolate ; mediastinal vein 

 ending in a transverse veinlet by the stigma at a little beyond two-thirds 

 of the length of the wing ; subcostal ending at five-sixths of the length, 

 connected by a veinlet at the tip of the stigma with the radial ; radial 

 and cubital springing from a common petiole, which they much exceed 

 in length, and which proceeds from the subcostal at half the length of 

 the wing ; cubital forming near its base an angle, which emits to the 

 third externo-medial a transverse veinlet ; this also forms an angle 

 whence proceeds the first externo-medial ; the latter is forked at half 

 its length or before, and near its fork is connected again with the third 

 externo-medial by an oblique veinlet whose middle emits the second 

 externo-medial ; another oblique veinlet connects the third externo- 

 medial with the subaual ; anal and axillary veins complete ; discal areolet 

 pentagonal. Abdomen uith eight segments, rather thick. Legs mo- 

 derately long, stout, unarmed ; coxae short ; tibiae with two spurs at 

 the tips. Male. Antenufe pectinated, hardly shorter than the thorax ; 

 tip elevated, clavate, and with various appendages. Fern. Antennae 

 simple, shorter than those of the male. Abdomen lanceolate, or fusi- 

 form, generally elongated and attenuated towards the tip, with two 

 subensiform styles. 



The Ctenophorce inhabit woods; they excel the other TlpnUdce 

 in tlieir robust structure, their bright colours, and in the rapidity 

 of their flight. The larvae feed in decayed trees. 



a. Male. Antennae with alternate long and short branches ; the long 

 branches not much longer than the short ones. Fern. Antenna; not 



