AMOTTJEA. 131 



others, nearly as long as the second and third together ; the joints thicker and shorter 

 towards the apex, which is obliquely truncated ; the penultimate joint not half the 

 size of the preceding ; the apical apparently composed of two joints, and as long as the 

 two preceding together; if composed of two there will be thus eleven joints in all* 

 Antennal grooves deep ; below each antenna there is a sharp, thin carina issuing from 

 the outer border of the grooves. Eyes large, hairy; the head scarcely projecting 

 behind them ; the two upper ocelli in a line, the lower ocellus at some distance below 

 them. Prothorax small above, more strongly developed laterally ; the sides straight, 

 very slightly hollowed. Lateral sutures on mesonotum distinct. Scutellum large, broad 

 in front, narrower behind, where there is a well-defined margin a little way down* 

 Metathorax small ; its spiracles large and oval. Second abdominal segment occupying 

 nearly half of the entire extent of the ventral surface ; third small, fourth double its 

 length, fifth a little longer than fourth, and with a large round spiracle at its fore 

 margin. The ovipositor extends beyond the tip of the abdomen, and originates quite 

 close to the base. Four anterior tibia? each with one large, stout, curved spur; 

 posterior tibiae with none. Posterior femora enlarged, toothed ; posterior coxae large, 

 thick, hollow in the centre on their outer sides ; posterior tibiae thick, curved. Claws 

 simple. Costal branch of fore wings one third of the length of the ulna. 



In the form of the head, antennae, and thorax this genus does not differ much from 

 Epistenia, but it differs from it markedly in the structure of the ovipositor and in the 

 very different posterior legs. 



1. Amotura annulicornis. (Tab. VI. fig. 6,$; 6 a, hind leg; 6 b, maxilla 

 and maxillary palpus ; 6 c, labrum and labial palpi from beneath.) 

 Viridis, cupreo tincta ; flagello antennarum, tibiis tarsisque nigro-purpureis ; antennarum medio, tibiis tarso- 



rumque basi albidis ; alis hyalinis, medio infumatis. 

 Long, fere 7 millim. 



Hob. Nicakagua, Chontales (Janson). 



The antennae gradually thickened towards the apex; the flagellum about one 

 third longer than the scape. Head coarsely punctured, especially between the 

 antennae ; the antennal grooves very finely punctured ; in front and at the sides the 

 head is covered with long white pubescence. The mesonotum with the scutellum 

 coarsely punctured. Pronotum less coarsely punctured. Mesopleurae finely punctured 

 above behind (broadly) smooth, shining, impunctate. The breast very finely and 

 irregularly punctured. The metanotum irregularly punctured. Metapleurae coarsely 

 punctured. The abdomen smooth, shining, impunctate. The mesonotum and pleurae 

 marked with golden or coppery splashes; the abdomen above purple. Pleurae, 

 coxa?, and sides of abdomen covered with longish white hairs. On the anterior tibiae 

 the white is scarcely visible, on the middle pair it is much broader ; on the hinder pair 

 the extreme base is black, followed by a moderately broad white ring. The metatarsus 

 and the next joint are white in all the tarsi. The posterior coxae are very finely punc- 



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