266 MODERN SVSTEM. 



Sp. 1. CrtES. septentrionalis. 



Nematus Septentrionalis. Juriiie, Lafr., Leach. Crresus Septentrio- 

 nalis. Leach, Zool. Misc. vul. iii p. i'^9. 

 Inhabits woods. 



Genus 418. NEMATUS. Leach. 



Superior wi/igs with i'our submarginal cells: unteiuKB simple, nine- 

 jointed; lonjicr than the body in the males, the last articulation ge- 

 nerally increasing, or internally a little produced: tarsi simple. 



Sp. 1. Nem. iiiger. 2. Nem. lutcns. 'o. Nein. lucidus, S)-c. 

 Genus 419. CLADIUS. Leach. 



Upper zvings wUh three sultmarginal cells : antennee of the same length 

 as the body or scarcely longer; of the males with very long cilije; 

 the (3d, 4th, and oth joints from the apex, or the (3th and 7th (espe- 

 cially) a little produced ; the third joint from the base with a small 

 protuberance: farsi simple. 



Sp. 1. Cia. difformis. 



Inhaljits England, liut is rare; it has occurred at Coombe Wood in 

 Surry, and near Bristol. 



Stiri's 6. — Ant f nine \v\t\\ many articulations: /)(«/;/ rather depressed: 

 wings with two marginal and four submarginal cells. 



Genus 420. TAliPA. Fair., King, Leach. Mloalodontes. Latr., 

 Spinola. Diprion. Schi-unk. 

 Tibia:, the four posterior armed on the inside with two spurs or spines. 



Obs. — Abdomen with the posterior part of the first articulation with a 

 membranaceous margin ; the membrane pale. 



Sji. 1. Tar. Faliricii. Black; head with two spots on the inner margin 

 between the eyes : thorax with the anterior ])art angular ; two stripes 

 near the scutellum, and punctured; the membrane of the abdomen 

 with two fascia', and a ])uncture on each side : anus with a white 

 band: antenna^ brown; the first two joir\ts black : feet yellow; base 

 of the coxa' of the four anterior feet black. 



Tarpa Fabricii. Leach. 



Length of the body 7 lines; expansion of the wings 12-1 lines. In the 

 museum of Dr. Leach. 



Sp. 2. 2ar. Kliigii. Black, with three spots between the eyes; those 

 placed on the margin of the eyes broken : thorax with the anterior 

 margin divided; two stripes near the scutellum, and punctured: ab- 

 domen with the 1st, 4th, .oth, 6th, 7th, and 8th joints at the poste- 

 rior margins, with two yellow bands : antennte with the second and 

 last joint black, the others brown; feet reddish brown; tibiw yellow; 

 thighs of the four anterior legs black at their base. 



Tenthredo cephalotes. Fabr. Ent.Si/st. 2. 111. Tarpa cephalotes. Fabr. 

 Sj/st. Piczat. 19. Tarpa plagiocephala. King, Berl. Mag. 1808, 270. 

 t. a. Tarpa Klugii, Leach, Zool. Misc. ni. 131. 



