R-^o 



EDWARD NORTON. 



Fortunately they are attacked by many parasites, both Ichneumoni- 

 dfe and Diptera. which aid in diminishing the numbers which are so 

 destructive. 



Sub-genus T. (Ilartig.) 

 Lanceolate cell open at shoulder, with oblique cross line and broken 

 hinder veins. Antennae of males bipectinate ; tibial spurs blunt, mem- 

 branous; on the hinder tibiae sometimes much enlarged, widened.* 



Synopsis of arrangement of species. 



A. Lanceolate cell petiolate; 



Antennae'^ , 15-jointecl, stout f 1, tropicus. 



Antennse'J,, li-jointed, slender 2, Cordoviensis. 



B. Laiiopolate cell with straight or oblique cross-uervure ; 



Antennae 9 > Ifi-jointed .S, Fabricii. 



4, compar. 



Antenufe, % 15-, 9 17-jointed 5, pinus-rigida. 



Antennae, % 18-, 9 , 17-jointed 6, Abbotii. 



Antennas, 9 17-jointed 7, Akhursti. 



Antennte, % 21-, 9 18-jointed; tergum jiale ft, abietis. 



Antenna", '^19-, 9 18-joinled; tergum black 10. pinetuin. 



Antennae, 9 IS-jointed 9, abdominalisT 



Antennae, 9 IS-jointed II, americanus. 



Antennae, % 9 2l-jointed 12, Lecontei. 



Antennae, % 24-jointed 13, Edwardsi. 



Cuban species. 

 Antennae, % 20-, 9 17-jointed 14, insularis. 



1. Lophyrus tropicus, n. sp. 



Antennae, head and apex of abdomen black: remainder of body testaceous; 

 wings hyaline. Length 0.23. Br. wings 0.58 in. 



S . Antennae l5-jointed, short, stout, pilose, each ray short, enlarged 

 at end; that upon the 3rd joint, (basal ray) very much enlarged at 

 base, so as to be serrate; antennae piceous, rays paler; head black, 

 shining; labruni, mandibles and palpi, luteous; the whole body testa- 

 ceous, the two apical segments of abdomen blackish; legs testaceous, 

 apex of hinder tibiae and all the tarsi piceous; inner spur of hinder 



*Dr. Ilartig has three Sections, viz: 



Sec. 1. — Antennae of females thickened near the end ; of males with uufeath- 

 ered, reflexed tips. 



Sec. 2. — Antennae of females thickened in the middle, somewhat serrate : of 

 the males with a complete comb. Inner spur of hinder tibiae rough and enlar- 

 ged. Female with black cross-bands between eyes. 



Sec. 3. — Antennae of females thickened in middle, wholly serrate; of the 

 males fully pectinate; spurs of hinder tibiae as usual. % 



Most of our species belong to Section 3. 



t It is often difficult to count the number of joints in the autenn.ie of the 

 males. In some cases two rays appear to spring from one joint. 



