( lil> ) 



XIX. I'KOTOI'AUCE.— Tyiuis : nistir<i. 



S,,hi„, Miiiio, S,/sl. Xiil. I'll. X. p. 4K'.I (ITns) ((>artim) : type: inclhil,,). 



Miimlnid iihsriira Ilubiier, Sunniil. /•;./■. S,-/,„i. (IHIIC, 'J4). 



Ihjh>i,us id., 1V(-. hek. Sr/uH. p. i;58 (18-22) (partial) ; type : plwis/rl). 



Arhrroiitia, id., I.e. p. I3'.l (18-22) (partim). 



(Airi/fiuK id., /.f. p. 140. (1822) (partim ; typo : antacux). 



Phlrgithontius I.e. p. 140 (1822) (partim ; type : chieiiliu/s). 



Proliipiiri-i- id., Biirmeister, SV//«t. Bms. p. G (185G) (type : nixlied). 



Macf^.^ihi Walker, /,;.s7 Lep. I/i.s. IS. M. viii. p. l;)8 (18,56) (partim ; includes vitsfn-a). 



nUwIiii Grote & Robinson, Pme. Ent. Sac. Pliihid. v. p. 188 (1805) (type : hrunl,^). 



^>I~<J<J'" id., Li\ p. 180 (180,')) (type : affllrla). 



c? ? . Tongue as long as the body or longer. G(nial process nearly reaching 

 end of pilit'er. Labrmu raised niesially into a rounded tubercle, truncate in front. 

 End-segment of antenna long, thin, clothed with long disper-sed and half erect 

 scales. Palpus large, terminal surface in a plane with frous, segment 3 minute, 

 2 shorter but somewhat broader than 1. Eye large, feebly or not at all lashed. 

 Tibiae without »pines.* First segment of midtarsus with a comb of long bristles 

 near base ; first segment of anterior tarsus witli a number of spines at base 

 exteriorly, besides the usual external row, some of the spines of the segment long in 

 a number of speiaes. Spurs unetpial, long terminnl one of hindtibia varying in the 

 different sj)ecies from one-half to three-quarters the length of the first tarsal segment. 

 IMesonotum with a short double crest of scales in many sjiecies. rulvilliis present 

 or absent ; paronychium always present, with one lobe on each side. 



S. Antenna in some species {Carolina, diliicida, afflicta, etc.) obviously longer 

 and thicker than in others {lucctius, jjctuniae, etc.) ; segments laterally impressed, 

 ciliae of basal row short ventrally, the distal row of ciliae not extending to the 

 ventral surface. Tenth tergite slender, more or less slightly hook-shaped, dorsally 

 impressed in middle proxinially, ventrally snbcarinate before end, with dispersed 

 erect or suberect hairs, tip jiointed or slightly sinuate ; tenth sternite with a mesial 

 lobe which varies in length in the genus, the lobe often canoe-shaped, with the 

 end truncate or sinuate. Penis-sheath armed at or before end with a prominent, 

 triangular, compressed, more or less horizontal tooth, which is sometimes rejilaced 

 by one or two small ones ; three minutely granulose, membranaceous, com- 

 pressed lobes in the interior of the sheatli (PI. XXIX. f. 21). The clasper is 

 sole-shaped ; its upper margin dilated before end and turned inward in all species 

 except le/eburei ; the inner surface is densely clothed with stiff hairs, which point 

 dorsad and proximad ; harpe normally with a ventral, more or less horizontal, hook, 

 and a large dentate process or ridge lying more or less flat on the inner surface 

 of the clasper. In one species (rustica} the ventral hook alone is preserved ; in 

 others {ochus, lefeburei, petuniae) the dentate part is reduced in size, while in others 

 again {Jiorestan, sesquiplex, trimacula, etc., etc.) there is no ventral hook ; the 

 harpe of dalica (= garleppi) stands intermediate between the second and third 

 harpe-form. In all species there is a conspicuous patch of suberect scales (generally 

 white) at the base of tlie dentate lobe of the harpe, rustica without such a lobe 

 being alone an exception. 



? . The antennal segments are not, or very feebly, impressed laterally ; the 

 basal ciliae are sometimes slightly prolonged (this is especially the case in 



* P. ijiiitiqiicmaculatus alone has a few spines at the tip of the foretibia. 



