ACMNITUS. COLLYKIA. 45 



strongly costate, external arevc entirely, black ; metanotum 

 nigulo.se, with the costal iudi.stiuct and obsolete, apophyses 

 distinct but obtuse, spiracles linear and short. Scutellum not 

 small, nor laterally carinate beyond its mnltieostate basal fovea, 

 evenly aud not closely punctate, with pale pilosity, and its apical 

 third, like tliat of the glalirous postscutelluin, black. Ahdomen 

 nitidulons, finely and closely punctate, apically pilose and sub- 

 compressed; tlavous, with the base of all the segments, except 

 the tirst, basally black; first black ou either side before its centre; 

 venter flavous, hypopygium extending to the apex and covering 

 the base of the apically black, but not incrassate, testaceous 

 valvula3 ; terebra as long as the abdomen. Leys testaceous ; hind 

 pair stout and elongate with the coxas basally above, the ouvchii, 

 and the base of the hardh'' curved tibiae, black ; anterior claws 

 bifid. FFtur/s hyaline, the anterior pair with their apices broadly, 

 and a substigmal spot deeply, inf umate ; radix, the anteriorly 

 black-spotted tegulse, and the base of the costa, flavous ; costa 

 and stigma black ; areolet wanting, nervelet distinct and nearly 

 as long as the subuiarginal nervure, which is emitted from the 

 cubital but shortly before the recurrent ; first recurrent of lower 

 wings exactly opposite, emitting the curved nervellus fi'om its 

 centre. 



Letuith 8 millim. 



SiKKiM {Col. 0. T. BiDgham). 



Type in the British Museum. 



The distinct nervelet, strongly transverse intermediate segments 

 and elongate hypopygium place this species in Forster's subgenus 

 Chonschizus, though it is certainly congeneric with A. xantliorhis. 

 with which its coloration is almost identical. 



Genus COLLYRIA, ScMM. 



Collyria, Schiijdte (nee Brulle), Mag. Zool. 1839, Ins. p. 10. 

 Fachymerus, Gravenhorst, Iclni. Eur. iii, 1829, p. 721 (part.). 



Genotype, Paclvjmerus calcitratoy, Grav. 



Head cubical, with the eyes pilose aud somewhat large ; cheeks 

 buccate, not elongate, with the costa sharply inflexed ; clypeus 

 hardlj' discrete, apically truncate aud centrally produced. An- 

 tenna} shorter than the head aud thorax; scape a little excised, 

 tiagelluni basally subattenuate. Thorax elongate ; pronotal 

 epomise conspicuous above; notauli apically distinct; meso- 

 sternum elon-rate, with no lateral sulci ; metathorax long, with 

 distinct longitudinal, but no transverse, cosfae ; spiracles small 

 and obliquely linear. Abdomen elongate and apically subcom- 

 pressed; basal segment parallel-sided, with central spiracles; 

 ventral valvulae not vomeriform, but covering the base of the 

 short and straight terebra. Anterior legs slender ; the hind 

 pair strong and stout, their tibia) straight and longer than the 

 incrassate femora, calcaria short, tarsi elongate with the claws 



