Mr. F. Walker on the Mymaridse. 49 



closely to the Eusphceriwn purpureum, Newman, Ent. Mag. v. 298, 

 which last seems to be the Compsosoma violaceum of Dej. 



Eucomatocera, White. 



Narrow : head, thorax and elytra nearly equal in width. An- 

 tennae with the first joint the longest, second very small, third to 

 seventh fringed behind with longish hairs; eighth, ninth and 

 tenth joints short, with long tufts of hairs on each side. Eye 

 small, round. Legs short. Mouth (destroyed in the specimen in 

 the British Museum) ? vt^cA. ^^ j.i m*r*~* >^ru £cA±lj _x«~n: **-*-* ** 



Eucomatocera vittata, White. PI. I. f. 4. Black, deeply punc- A 7' "~ • ~ 

 tured ; back of thorax with four pale longitudinal vittse, two of ^ *- Z^A 

 these are lateral and two central close to each other ; each elytron 

 has three pale vittse reaching from the base to the tip, one on the 

 suture, one on the outer edge, and the third nearer the outer edge 

 than the suture, the last two being connected on the shoulder. 

 Elytra with at least seven rows of coarsish punctures, the vittse 

 filled with short, closely-placed light-coloured hairs. 



Length 5| lines. Brit. Museum. 



Hah. India. From the late Col. WhitehilFs collection. 



This pretty little longicorn beetle in general appearance is some- 

 what like Hippopsis, Serv. and St. Farg. Ency. Meth. x. 336. In 

 the antennae it somewhat approaches the curious genus Tetra- 

 glenes, Newman, Entomologist, 300 and 304, of which a figure is 

 subjoined, PL I. f. 5 (T. insignis) ; this latter was brought from 

 the Philippine Islands by the indefatigable Mr. Cuming. 



VIII. — Descriptions of the Mymaridse. Communicated by 

 Francis Walker, Esq., F.L.S. 

 The following descriptions are, excepting a few additions, ex- 

 tracted from MSS. kindly given to me by Mr. Haliday. The 

 Mymarida were first noticed by him in the ( Entomological Ma- 

 gazine/ vol. i. p. 341. 



„, . . Mymarid^;. 



Tarsi pentamen. 



Antennae feminae 1 1 -articulatae. Abdomen petiolatum... Ooctonus. 



Abdomen subsessile ... Lymcenon. 



Antennae feminae 9-articulatae Litus. 



Antennae feminae 8-articulatae. Abdomen subsessile ... Arescon. 



Abdomen sessile Alaptus. 



Tarsi tetrameri. 



Antennae feminae capitulo exarticulato. 



Abdomen sessile Anagrus. 



Abdomen subsessile. Antennae mari 12-articulatae Anaphes. 



Antennae mari 13-articulatae Panthus. 



Abdomen petiolatum. Alae quatuor, ulna lineari... Caraphr actus. 



ulna punctiformi Polyne.ma. 



Aloe quasi binae Mymar. 



Antennae feminae capitulo biarticulato Eustochus. 



Ann. $ Mag. N. Hist. Vol. xviii. E 



