388 CLASS VTII. 



Tarpa FABR., HARTIG, Magalodontes LATR. Antennae shortly 

 pectinate on the inside (fifteen- to eighteen-jointed). Radial cells 

 two, cubital four. Posterior tibige with two lateral spines. 



Comp. KLUG, Entomol. Monograpkien, Berlin 1824, 8vo, s. 181 196. 



Lophyrus LATR. Antennae in males pectinate, in females ser- 

 rate (seventeen- to thirty-jointed). Radial cell single, cubital cells 

 four. 



Sp. Lophyrus Pini, Tenthredo Pini L., KATZEBURG 1. 1. Tab. n. fig. i ; 

 Lophyr. rufus, &c. The larvae have 22 feet 1 . 



b) Antennae with mostly nine joints or fewer. 



Tenthedro L. (exclusive of many species), LATR., Allantus 

 JURINE (with addition of some sub-genera). Antennas nine- to 

 eleven-jointed, simple. Radial cells mostly two, cubital four. 

 Labrum exsert. 



Sub-genera: Macrophya, DAHLB., Tenthedro HARTIG, Allantus 

 JURINE, Athalia LEACH, Selandria LEACH, Dinura DAHLB., Phyl- 

 lotoma FALLEN, Fenusa LEACH, Emphytus KLUG, Pelmatopus 

 HARTIG, Dolerus JURINE, Cryptocampus HARTIG, Nematus JURINE, 

 Cladius ILLIG., and others which are recorded in WEST WOOD, 

 Generic Synops. pp. 52 54. 



(Areolae of wings and antennae are used for subdivisions). 



Sp. Tenthredo difformis (Cladius), PANZEK, Deutsch. Ins. Heft 6-2, Tab. x. 

 (male with antennae pectinate in middle) ; Tenthredo centifolice (Athalia}, 

 PANZER, Deutsch. Ins. Heft 49, Tab. xviu. 2 ; Tenthr. grossularice DAHLB., 

 BLANKAART, Schouburg, Tab. ix. figs. G J ; Tenthredo gallicola (Nematus} 

 WESTW., SWAMMERDAM, Bib. Nat. Tab. XLIV., RCESEL, Ins. n., Boinbyl 

 et Vesp. Tab. x. figs, i 4 (Tenthredo gallifex HAGENB. in MSS.) &c. The 

 larvae have twenty or twenty-two feet. 



Hylotoma LATR. (and Schizocera ejusd.) Antennae triarticulate, 

 with third joint elongate, in males of some species forked (Schizo- 



1 Comp. on this genus L. FINTELMANN, Zur Naturgesch. einiger auf der Kiefer 

 lebender Lophyren ; Nov. Act. Cces. Leop. Car., Tom. xix. P. i, 1839, PP* 2 45 2 ^> 

 Tab. xxv. 



2 On this insect, whose larva may be very destructive to turnips by eating the 

 young leaf, we have an excellent monograph by G. NEWPORT, Observ. on the Ana,t. 

 and Economy of Athalia centifolice ; Prize Essay of the Ent,omol. Soc. With a plate. 

 London, 1838, 8vo. 



