AMERICAN HYMENOPTERA. 51' 



ginal cells ; the first and second (or second and third, if one counts the 

 incomplete cell at the base), each receiving a recurrent nervure. 

 Antennse seven-articulate, third longest, seventh slightly enlarged. 



1. Cephalocera'? calcar, n. sp. 



Testaceous; antennse and two vittse on thorax black; apical half of wings 



obscure. Length 0.24. Br. wings 0.52 in. 

 9. Testaceous; antennae villose, dark piceous, seven jointed, the 

 first twice as long as second, the second four times as long as first, 

 sixth slightly globular at tip, seventh as long as sixth, not clavate, 

 (somewhat like Selandria ;') the two basal joints white; head and 

 body testaceous; two vittge on side lobes of meso-thorax, five or six 

 obscure spots on middle of tergum ; breast piceous ; legs testaceous, 

 hinder tibiae at apex black ; the four hinder tibiae each with a side 

 spur; all the apical spurs acute; first tarsal joint nearly as long as all 

 the remainder; tarsi slender, not dilated, no patellcB visible; wings 

 hyaline, all appendiculate, their apical half clouded ; nervures yellowish, 

 stigma large, nearly white ; one marginal and four subuiarginal cells, 

 the first nearly as long as second ; the 2d receiving the two recurrent 

 nervures at or very near the intersection of first and second, and se- 

 cond and third cells; first and second submarginal of equal length; 

 third shorter, not much widened at outer end ; lower half of first sub- 

 marginal cross nervure wanting ; lanceolate cell wanting, obsolete ; un- 

 derwings one middle cell. 



Cordova, t. c. Mexico. (1 $ .) (Coll. of H. deSaussure.) 

 This can hardly belong to Ccplmhcn-a^ which I have not seen, but 

 seems rather a connecting link between IljloUmia and Tenthredinides, 

 having the wings and side spurs of the one, and the antenna of the 

 other. The bullae occupy the lower half of the first submarginal 

 cross nervure, and most part of second and third. 



2. C, pumila, Klug, Jahrbuch. 1834, 252. PL II, 10 % .—Brazil. 



Sub-Family 2. Hylotomides.* Westw. 

 Antennae three or four-articulate; third joint long, and in the 

 males often furcate ; marginal cells not appendiculate. 



* The arrangement of genera here presented is arbitrary, and probably in- 

 correct, as the definitions of Klug are short, and founded only on the upper 

 wing cells, and are apparently faulty, while the arrangement of other authors 

 seems to be taken up without seeing the insects, and the very few sjiecimens 

 within my reach do not agree with the diagnoses laid down. 



