TENTHEEDINID.E. PRISTIFHORA. 25 



Nematus, agreeing nearly in the neuration of the wings with the 

 former, and in the simplicity of its antennas with the latter : the males 

 have these last organs but slightly pubescent, and are destitute of 

 any appendage at the tip of the basal joints, and the females have 

 them very short and slender, and glabrous, by which character either 

 of the sexes may be known from Cladius ; and from Nematus, the 

 want of the minute, rounded, submarginal areolet, distinguish them ; 

 though, it must be admitted, that the nervure which subdivides this 

 from the 2nd is occasionally very faint in the true Ne. pallipes. 



A. Anterior wings with the 1st submarginal areolet large^ and receiving 2 



recurrent nervures; the Sad small, quadrate. 

 Sp. 1. Myosotidis. JVigra, ahdomine iestaceo, segmentorum omnium lineis dor- 



salibus nigris, pedibus testaceis posticis Jemorum tibiarumque apice tarsisque 



nigris. (Long. corp. 3 lin. ; Exp. Alar. 62 lin.) 

 Te. Myosotidis. Fabricius. — Pr. Myosotidis. Steph. Caial. 382. No. 3783. 

 Black ; thorax with pale shoulders ; abdomen testaceous, all the segments 



with an abbreviated transverse black dorsal line, sometimes interrupted in 



the middle ; legs pale testaceous, posterior with the extreme tip of the 



femora, and of the tibiae and the tarsi black ; wings hyaline, with pale 



nervures, and a brown stigma ; mouth testaceous. 



This appears to be a scarce insect : I have taken it in June at 

 Darenth wood. 



Sp. 2. testacea. JVigra, humeris punctis duobus meiaihoracis abdomineque 

 testaceis, pedibus pallide testaceis, tibiarum posticarum apice fuscis. (Long, 

 corp. 2i— 3lin.; Exp. Alar. 5—6 lin.) 



Pte. testaceus. Jurine. — Pr. testacea. Steph. Caial. 328. JVo. 3784. 



Black : mouth testaceous ; thorax with the shoulders and two spots on the 

 metathorax luteous ; abdomen pale testaceous, the basal segment dusky> 

 or with a black transverse streak on its margin ; legs pale testaceous, with 

 the apex of the two hinder tibiae fuscous ; wings hyaline. 

 Not very common : found occasionally at Darenth wood in June, 



and in Devonshire. 



Sp. 3. pallipes. Nigra, ore, punctoque metathorace ferrugineis, antennis testaceis 

 subtus pallidis articulis 2-bus baseosjuscis, pedibus pallidis. (Long. corp. 2§ 

 — 3 lin. ; Exp. Alar. 4— 5^ lin.) 



Pr, pallipes. St. Far geau.— Steph. Catal. 328. No. 3785. 



Black : mouth ferruginous, and a geminated spot of the same on the meta- 

 thorax ; legs pale ; wings hyaline, with the costa pale, the nervures and 

 stigma fuscous ; antennae testaceous above, pale beneath, with the 2 basal 

 joints fuscous. 

 Found in the vicinity of London, about the middle of June. 



