192 (August, 



51 (50) Discoirlal «. and 1st medial «. sub-parallel Blennocampa. 



The above nn. evidently converge 52. 



52 (51) Head (viewed from in front) raised between the compound eyes, so that 



the central ocellus is lifted above their tops Entodecta. 



Head flatter, the central ocellns not lifted above the tops of the eyes, but 



lying between them Scolioneura. 



53 (I'J) Humerus (near its base) approaches so closely to the brachius that the 



humeral a. appears contracted Kaliosysphinga. 



Humerus (near base) vanishes without approaching the brachius ...54. 



54 (53) .4w<. 9- (seldom 10-) jointed Fenusa. 



Ant. 11-jointed (or more) Fenella. 



55 (43) 2nd cubital n. wanting, the very long 2nd cubital cell receives both the 



medial nn. Humeral a. with oblique cross «. {Dolerides) 67. 



2nd cubital n. present, or else the 2nd cubital cell does not receive both 



medial nn 56. 



5G (55) Discoidal n. strikes subcosta long before tlie origin of the cubitus ...68. 



Discoidal n. strikes subcosta close to the origin of the cubitus 57. 



57 (56) 2nd joint of ant. shorter than 1st 58. 



2nd joint of ant. longer than 1st. (Only two cubital nn. present. Hu- 



meral a. with oblique cross n.) Harpiphorus. 



58 (57) Ant. 9-jointed 59. 



Ant. with 10 joints or more. Three cubital nn. present : humeral a. with 



oblique cross »., a cubital and a medial n. present in h.w...Athalia. 



59 (58) Humeral a. " open " (Fig. 4) 60. 



Humeral cell crossed by a n 63. 



60 (59) Costa much thickened apically, before the stigma : body ovate... 



Selandria. 



Costa normal : body elongate 61. 



61 (60) 3rd joint of ant. not longer tliau 4th. $ ss. (from above) appears tri- 



dentate Thrinax. 



3rd joint of ant. longer than 4th 62. 



62 (61) 2nd joint of ant. longer than broad, and much less broad than the 1st 



joint . . Stromboceros. 



2nd joint of ant. very short, and hardly less broad than the 1st... 



Stro ngy log aster. 



63 (59) Eyes more or less remote from mandibles 64. 



Eyes close to base of mand Eriocampa. 



64 (63) Humeral a. with short pei'pendicular « Strongylogaster. 



Humeral a, with oblique n 65. 



65 (64) H. w. with perpendicular areal n. {i. e., at right angles to both mcdius 



and brachius). Abd. above often with large pale lateral spots or 



streaks. Either two or throe cubital nn. may occur in the fore-wing. 



II. w. most commonly with medial n. present and cubital n. absent. 



Poecilosoma. 



H. w. with oblique* areal n. (making an acute angle with the medius and 



* In Empkyt.us serotinus thi.s character i.s perhaps scarcely to be recognised. With thi.s ex- 

 ccjition it seems to be reliable. P(ecilnst)„ia and Emj)hytus are undoubtedly very closely allied, 

 though it is usually easy to distinguish them. 



