JO MANDIBULATA. HYMENOPTERA. 



Sp. 38. scalaris. Viridis, capitis vertice thoracisque dorso maculis, abdomine 

 lined punctoriim nigrorum, alis costa stigmateque viridibus. (Long-, corp. 

 4— 5f lin. ; Exp. Alar. 74— 10^ lin.) 



Te. (All.) scalaris. Klug.— AW. scalaris. Steph. Caial. 335. Xo. 389T.— 

 Te. viridis. Donovan, v. xiii. pi. 444. 



Green : antennae black above ; crown of the head more oi- less varied with 

 black; disc of the thorax the same; abdomen with a line of black dots 

 extending from the base to the apex along the centre, frequently expanded 

 transversely so as to form a broad longitudinal dorsal streak, leaving the 

 margins and sides of the abdomen always spotless ; all intermediate shades 

 occur from a few simple dots ; legs with a black streak throughout above, 

 and the apex of the joints of the tarsi also black ; wings hyaline, nervures 

 fuscous, the costa and stigma green. 



The sexes resemble each other, but both are extremely prone to vary. 



Taken very commonly on flowers, in June and July, within the 



metropolitan district. 



Sp. 39. pictus } Flavo-viridis, capitis vertice, thoracis maculis, pectoris plagd, 

 ahdominisque dorso nigris, pedibus nigro lineatis, tarsisfuscis. (Long. corp. 

 3— 3i lin.; Exp. Alar. 6^—7 lin.) 



Te. (All.) pictus ? Klug.—A\\. pictus. Steph. Catal. 335. No. 3899. 



Yellowish-green : antennae above and the 2nd joint black ; crown black ; 

 thorax more or less varied with black ; abdomen black above, with the 

 sides, apex, and extreme margins of the segments greenish; legs with a 

 black streak above, tarsi fuscous ; wings hyaline, nervures fuscous ; stigma 

 pale, with the apex brownish. 

 Less abundant than the 3 preceding species, occurring occasionally 



at Darenth wood and near Dover, in June. 



Sp. 40. Tilise. Luteus, thorace maculis duabus, abdominis segmento \-mo, ma- 

 cularum striga dorsali, ano, tarsisque posticis 7iigris. (Long. corp. 5 lin.; 

 Exp. Alar. 9— JO lin.) 

 All. Tili«. Panzer.— Steph. Catal. 335. A^o. 3895. 



Luteous : mandibles brown; forehead ferruginous; crown dusky; thorax 

 with the disc ferruginous, with 2 oblique black streaks; abdomen with the 

 basal segment and part of the 2nd black, the former with a yellowish border; 

 the terminal one also black, and the intermediate ones with a row of spots 

 down the back ; two hinder tarsi dusky, or black ; wings hyaline, with 

 yellowish nervures ; stigma dusky, pale at the base. 

 Male with the antennse dusky at the tip, the disc of the thorax immaculate^ 

 the abdominal row of spots larger, and the tarsi all yellow. 

 Not very common : found at Darenth and Coombe woods occa- 

 sionally in June. 



