162 Ml". R. MaeLachlan's Motiogrnjjh of 



be confounded with hcetica of Brauer, which z^o^m's of 

 Schneider. 



I adopt the name maculicollis to avoid the clashing of 

 affinis with Schneider's like-named species. Stephens' 

 description applies so far as it goes, and the examples of 

 macidicolUs and affliiis labelled by Leach, who first pro- 

 posed the name, loelong here, but in each case Stephens 

 had afterwards added two examples of xanthostigma in 

 his Collection. 



Hagen (in Eut. Ann. 1858, p. 10) incorrectly referred 

 the two Leachian names to o^^hiopsis, as synonyms, and 

 his description applies to the latter species. 



Division II. HEMEROBIINA. 



Antennce moniliform.* Head transverse ; front not 

 prolonged into a rostrum ; ocelli mostly absent (present 

 in Osmylus) ; maxillary palpi 5-jomted, /a6mZ 3-jointed ; 

 mandibles mth a single tooth internally. ProtJiorax 

 moderately developed. J.&cZomeri mostly slender ; in the 

 male often provided with a pair of strong appendices ; 

 in the female, for the most part, obtuse, or with a short 

 borer. Legs slender ; tarsi 5-jointed, filiform ; ungues 

 seldom serrated. 



Wings ovate, sub-equal (the posterior pair ru.dimentary 

 in one sex of Psectra) , no perceptible anal space to the 

 posterior, hence these are not folded. 8ub-costa running 

 parallel with the costa, and into the apex ; radius parallel 

 with the sub-costa, and sometimes uniting therewith 

 near the apex, emitting one or more sectors, whereof the 

 first is sometimes pai-allel with the radius, the rest 

 branching off from it ; pterostigma not distinctly circum- 

 scribed ; transverse veinlets usually disposed, for the 

 most part, in two or more rows like steps, and hence 

 termed " gradate veinlets." The margins ciliated (except 

 in Goniopteryx) , all the veins and veinlets more or less 

 strongly ciliated. The neuration is most strongly deve- 

 loped in Osmylus; least so in Goniopteryx. 



Larva mostly arboreal (aquatic in Osmylus and Sisyra) , 

 elongate, and attenuated at each end,t subsisting on 



* In the Mi/rmeJeonidcp. aud Ascalaphidw the antennaj are clavate or 

 capitate : and in the Dilwridie (a family of doubtful location) they are 

 pectinate in the male. 



t In the extra-Britannic families, Myrmeleonidce and Ascalapkidm, the 

 larva is short and thick, and lives concealed in the earth ; in the Mantis- 

 pidcB it is parasitic in the nests of Arachnida and Hijmenoptera. 



