species of Nematus from Britain. 533 



Nematus carinatus. 



Hartig, BLattw., 199, 28. 



As the female of this species has not been described, I 

 give a description of it here. 



Black, thick. Head as broad as the thorax. Antennge 

 thick, as long as the abdomen ; the 3rd and 4th joints 

 about equal ; the apical joints thinner ; labrum white ; 

 mandibles piceous ; palpi dirty white; apex of abdomen, 

 cerci, tegulse, and a thin line on pronotum close to 

 tegulae, brownish-testaceous. Wings hyaline ; costa and 

 stigma yellowish-white ; nervures pale at base of wing, 

 darker at apex. Legs black; apical half of anterior 

 femora, the knees of posterior, and tibiae and tarsi, 

 brownish-testaceous ; apex of hinder tibiae and the tarsi 

 fuscous-black; the extreme apex of coxae and the tro- 

 chanters on under side testaceous. Cerci as long as 2nd 

 joint of posterior tarsi ; sheath of saw pilose, projecting. 

 Length, 3^ lines. 



This insect is much broader than hrcadalhanensis ; the 

 head is much thicker, clypeus black, cenchri larger, while 

 the coloration of the legs is darker, and the clypeus is 

 not so sharply truncated at the apex. The furrow on the 

 middle lobe of the mesonotum is very deep, while there 

 is a raised ridge running down the centre of the scutellum, 

 which is not visible in hreadalbaneusis ; in the latter, too, 

 there is a transverse furrow which goes across the apical 

 third, dividing the scutellum, as it were, in two. Pallipes 

 again has the antennae as long as the thorax and abdo- 

 men, the pronotum is almost entirely pale, the cerci are 

 shorter, the abdomen " almost cylindrical " ; while in 

 carinatus it is broad and fiat, broader in the middle than 

 the thorax, and ending in a blunt point at the apex, the 

 testaceous colour at the apex, too, being much less. 



Thomson (Hymen. Scand. i., 97) quotes carinatus 

 doubtfully as a synonym of pallipes. 



Nematus caledonicus, n. s. 

 Reddish-yellow; two black longitudinal marks on 

 mesonotum ; the dorsum of the abdomen with black 

 transverse marks, interrupted in the middle ; metanotum 

 with two short black marks at the sides. Wings yel- 

 lowish ; stigma testaceous, black at the base. Antennae 

 as long as the abdomen and half of the thorax ; the 3rd 



