( -^ ) 



at ;i|ii'.\ of lirKl, jsfgmciit cxUTiidlly .sninetiiiu^s loniiiiiL!; a kind ol' caNify ; third 

 wifj^tiioiit. mostly sliort, always shorter than second is broivd, inxkcd and conical if 

 very jironiinont. — Eyo varialde in size, naked ; no oceMi. — Scaling of lioad ofton 

 raised to a crest, especially in forms with reduced head. — Antenna filiform, setiform, 

 or clavate, }irismatically compressed or cylindrical, tapering at end, and mostly 

 curved to a hook, sometimes pectinated ; eud-begment long or sliort, scaled dorsally, 

 the scaling mostly dense and forming often a dorsal tnft projecting distad, or sparse 

 and rongh, or almost absent. There are often long bristles on the end-segment, 

 two at and near the tip, and several scattered over the surface of the segment ; the 

 whole dorsal surface of antenna scaled, two rows of scales to each segment, but 

 the rows quite irregular, }iroximal segments scaled also ventrally in a iQfr cases 

 where the clubbed antenna is very thin basally. Ventral surface densidy clothed 

 with fine hairs ; besides, there are some subdt)rsal and lateral sense-bristles, not 

 obvious excc])t on distal t^egmeuts ; a single ventral mesial sense-cone on each 

 segment, apical or subapical. c?: with one exception (li/iopalopsi/c/te), the segments 

 impressed at the sides and provided basally, dorsally, and apically along tlie groove 

 with a row of fasciculated long hairs, the proximal row of hairs of either side 

 continuous ventrally, but the hairs always shorter in and near the ventral mesial 

 line, the distal rows seldom extended to the mesial line. Sometimes the dorsal 

 edge of the groove widened laterad to a process which bears the fasciculated hairs 

 on tlie underside at the edges. In two other genera the basal and distal edges 

 of the grooves are ventro-laterally produced into a process each — i.e. into two 

 processes ou each side of the segment, the compressed processes bearing the fascicles 

 at the upper and ventral edges. ?: without fasciculated hairs as a rule; however, 

 there are many forms in which the segments resemble those of the <S, but the 

 fasciculated hairs and the pectinations are not so long, and the grooves not so 

 deej).— Sterna : parasternum of mesosteruum large, epi- and hy postern urn fused 

 together, sternum and peristernum separate ; suturale of mesomerum swollen. — 

 Abdomen : first tergite shorter thau second, a mere linear stripe in Macroylossum, 

 tergites ::i to 8 (c?), or 2 to 7 ( ? ), and sternites 2 to 6 (c?, ?) or 2 to 5 (many ? ?) 

 armed at end with spines, variable in number, size, and chitinisation, spines of 

 tergites generally stronger than those of sternites, the latter often without sjiines. 

 Some forms have the tergites spinose all over, while tlie spines are wanting in others, 

 c? alwai/s with tuft of long (scent-distributing) hairs in groove above upper edge 

 of sternile of second segment (steruite of first segment absent, or probably fused 

 with that of second). — Legs : sternal (= frontal) part of coxae not carinate excejjt 

 close to trochanter; meralpart of midcoxa reaching farther dorsad than sternal part, 

 the coxo-meral suture slanting ; hinder edge of meral part of midcoxa, or of mid- 

 and hindcoxa obtusely rounded, or carinate, or triangularly produced into a sharp 

 tooth ; trochautiue distinct ; forecoxa in S often with strongly developed scent- 

 organ ; tibiae simple or spinose, foretibia often ending in a thorn or claw ; 

 midtibia with two apical spurs, which are sometimes much reduced ; hindtibia with 

 two pairs, or the proximal pair absent ; the sj)urs occasionally spinose, in a few 

 cases the spines long and arranged in a single row, comb-like ; tarsi with four 

 ventral rows of spines, often with additional spines, especially on outer surface ; not 

 rarely some or many of the spines absent, and some developed to prominent hooks ; 

 ■1th row of midtarsus and 3rd of liindtarsus often basally developed into a jH-ominent 

 comb; fifth segment with two (seldom four) long dorsal terminal bristles ; pulvilhis 

 present or absent ; paronychium with two pairs or one pair of lobes, or vestigial ; 



