1922.] ^229 



A NEW MYMARID FROM BROCKENHURST.* 

 BY B. X. BLOOD, M.D., A>D J. P. KRYOEH. 



Plate II. 



Whilst hunting for Mymarinae and Tri cliogrammatinae last year 

 in the New Forest, we captured many interesting insects, some of which 

 we have never seen described, and among these was one male Mymarid 

 which at once attracted our attention. The following is a description of 

 this insect. 



Petiolaria, gen. no v. 



Tarsi S-jointed ; abdomen petiolate ; antennae of male 13-jointed, joints 

 3-13 fusiform, with a few strong huirs around the thickest part of each. lit ad 

 quadrangular, excavated behind, broader than the thorax. Eyes small, no 

 visible ocelli. Thora.x ovate, a little more than twice as long- as the head, the pro- 

 thorax wider, and semicircular in outline. Front wings battledore-shaped, the 

 " stem " about a quarter of the total length of the wing. The surface of the 

 wing with a few rows of strong hairs ; the outer half of the wing with very 

 long and powerful marginal cilia. Hind wings .«hort and almost i ndinientary, 

 about half as long as the stem of the anterior wings. Petiole nearly as long 

 as the thorax, coutisting of two distinct joints. Abdomen a little longer than 

 the thorax. 



The genus is easily recognised by the 5-jointed tarsi, the battledore- 

 shaped front wings, the rudimentary hind wings, and the double-jointed 

 petiole. 



Petiolaria anomala, sp. n. 



c?. Head brown, the eyes black; antennae brown; thorax brown, with 

 dark brown tegulae ; abd< men brown ; petiole and legs light yellow, at each 

 tarsal articulation is a narrow darker ring, and the last tarsal joint is lighter in 

 colour than the other four. 



The head, thorax, and surface of the Avings reticulated ; in the wings the 

 reticulations are large, like crocodile-skin, and do not follow any lines of 

 neuration. Antennae : scape long and slender; pedicel turbinate, one-third as 

 long as the scape ; third joint very small, shorter than the pedicel or anv other 

 joint; last joint of antenna pointed. 



Wings : anterior border, from the end of the stem to the first long cilinm, 

 with very short cilia; posterior border, from the end of the stem to the first 

 long cilium, with shorter cilia than those of the anterior border. On the posterior 

 border, about half-way between the thorax and the first long cilium, springs a 

 solitary long spine. The rest of the wing-border with cilia which are nearly 

 all longer than the gieatest width of the wing. The surface of the wing has 

 four rows of discal hairs above and two rows underneath. 



Legs : fore legs shorter, middle and hind legs longer and slender. 



Fore and middle tarsi longer than their tibiae ; hind tarsi shorter than 

 their tibiae ; the tarsi taper towards the apex. 



* Plate II. will be issued in the November Xo. , 



