436. 

 EMPHYTUS FASCIATUS. 



Order Hymenoptera. Fam. Tenthredinidae. 



Tyj^e of the Genus, Tenthredo cincta Linn. 

 Emphytus Leach, Curt. — Dolerus Jnr., Le Pel. St. Farg. — Ten- 

 thredo Linn., Fab., Klug. 



Antennee inserted in front of the face, approximating, half the 

 length of the body, filiform, clothed with short pile and 9- 

 jo^inted, basal joint cup-shaped, 2nd small, 3rd, 4th and 5th 

 nearly of equal length, the remainder decreasing in length, the 

 apical joint oval (1). 



Labrum semiorbicular, pilose and ciliated with long hairs (2). 

 Mandibles, one forming a long acute tooth at the apex with an 

 obtuse point below, the interior margin sinuated (3) ; the other 

 elongate-trigonate, less acute at the apex, with 2 obtuse teeth 

 below the centre on the inside (3 *). 



Maxilla broad, terminated by a rounded, slightly pubescent 

 lobe with a long internal one, pilose, curved and acuminated 

 at the apex. Palpi long pilose and G-jointed, basal joint small, 

 2nd subclavate, scarcely so long as the 3rd which is linear, 4th 

 the same length and clavate, 5th and Gtli shorter, of equal 

 length, the former subovate, the latter slender, linear, and 

 shghtly curved (4). 



Mentum subrhombiform, truncated before and behind. Palpi 

 rather long and pubescent, attached on each side towards the 

 apex, 4-jointed, basal joint the shortest, 2nd nearly twice as 

 long, curved and clavate, 3rd dilated, obtrigonate, 4th as long 

 as the 2nd subovate. Lip suborbicular, emarginate on each 

 side at the base, trilobed, centre lobe narrow strap-shaped (5). 

 Hegid transverse : eyes j)rominent : ocelU3. Thorax not broader than 

 the head, globose. Abdomen sessile, rather long slender subcylin- 

 dric, the back slightly angulated. Oviduct slightly exserted. Su- 

 perior wings with 2 marginal and 3 submarginal cells, the central 

 one being the shortest. Legs slender. TibiaB simple, anterior short, 

 furnished with 2 spurs at the apex, one dilated and bifid. Tarsi, 

 anterior much lo7iger than the tibia, 5-jointed, each joint excejjting 

 the last, with a membranous appendage betieath at the apex, basal 

 joint long. Claws bifid near the apex. Pulvilli distinct (8, a fore 

 ^'9)- __________ 



Fasciatus Le Pel. Mon. Tent. p. 118. n. 346. — Curt. Guide, 

 Gen. 470. 5\ 



Black shining : 2 white spots at the base of the scutellum : 

 abdomen with the 4th, 5th and 6th segments (excepting the 

 hinder margin of the last) orange : nervures and stigma pale 

 brown : tips of posterior coxse and trochanters white : upper 

 side of anterior thighs towards the apex and tips of middle inur 

 dirty white : all the tibiae and tarsi bright ochre, tips of the 

 latter and the greater portion of the posterior pair fuscous. 

 In the Author's Cabinet. 



