(2 ) 



iit iipcx ol' first st"j,'iui'iit cxtfi-iuilly .simictinics rdriiiiiii;- a kind nf ciivit.y ; tliird 

 BCjiiuoiit mostly sliort, uiwiiys slioiter tliaii sfcoiid is bioiul, iialvcd and conical if 

 very {iroiiiineiit.- Eye varialdc in size, naked ; no oa'///.— Scaling of head often 

 raised to a crest, cs|UTially in forms witli reduced liead.— Antenna filiform, setiform, 

 or clavate, iirismatically coraiiressed or cylindrical, taiiering at end, and mostly 

 curved to a hook, sometimes pectinated ; cud-segment long or short, scaled dorsally, 

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

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

 two at and near the ti]), and several scattered over the surf;^cc of tlic segment ; the 

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

 the rows ijuite irregular, jiroximal segments scaled also ventrally in a few cases 

 where the clubbed antenna is very thin hasally. Ventral surface densely clothed 

 with fine hairs ; besides, there are some subdorsal and lateral sense-bristles, not 

 obvious except on distal segments ; a single ventral mesial sense-cone on each 

 segment, ajjical or snbapical. S: with one exception {Rhnpalopsi/clie), the segments 

 impressed at the sides and jirovided basally, dorsally, and apically along the groove 

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

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

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

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

 on the 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 on 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 

 deep.— Sterna : parasternnm of mesosternum large, epi- and hyposternum fused 

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

 Abdomen : first tergite shorter than second, a mere linear stripe in Macroglossam, 

 tergites 2 to 8 (tJ), or 2 to 7 (?), and sternites 2 to 6 (<?, ?) 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 spines. 

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

 (? always with tnft of long (scent-distributing) hairs in groove above upper edge 

 of srernitc of second segment (sternite of first segment absent, or probably fnsed 

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

 close to trochanter; meral part of midcoxa reaching farther dorsad tlian 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 ; trochantine distinct ; forecoxa in S often with strongly developed scent- 

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

 midlibia with two a])ical spurs, which are sometimes much reduced ; hindtibia with 

 two pairs, or tlie ])roxinial pair absent ; the spurs 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 sjiines, especially on outer surface ; not 

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

 4th row of midtarsus and !5rd of hindtarsus often basally developed into a jH-ominent 

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

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



