168 Rev. T. A. Marshall's monograph of 



6. Apanteles ordinarius, Ratz. 



Microgaster ordinarius, Ratz., Ichn. d. Forst., i., 71. 

 M. reconditiis, Hart., Jahresb., 252 (not of Nees, Wesm.) 

 Apanteles ordinarius, Reinh., Berl. ent. Zeit., 1880, 

 p. 368, <? ? . 



Black ; palpi, apex of mandibles, margins of segments 1 — 2 

 narrowly, belly at the base broadly, squamulae, femora, and tibiae, 

 testaceous ; middle femora above, hind femora above and at the 

 apex, or entirely, with the apex of their tibite, black. Wings 

 hyaline, stigma fuscous. Mesothorax thickly punctulate, rather 

 shining ; scutelhim smooth ; pleurae puuctiilate, shining ; meta- 

 thorax rugose, carinated. Segment 1 somewhat longer tlini broad, 

 and, with the 2d, rugulose, both with a smooth medial carina ; 

 2 not shorter than 3. Terebra very short. Hind coxie puwciulate, 

 shining. Inner spur of the hind tibiae longer than i the meta- 

 tarsus. (^ 5 , Length, 1;^ — IJ ; wings, 3| — 4f lin. 



Second abscissa of the radius inchoate, punctiform. Abdomen 

 above broad and flat, lanceolate and compressed beneath at the 

 apex. First joint of the trochanters black, the 2d testaceous. 

 Much like ruhri]ies, Hal., but distinguished by greater size, colour 

 of the legs, &c. Antennae ? shorter than the body. According to 

 Reinhard the hind coxae are granulated, dull ; Ratzeburg says 

 nothing about this character, which can hardly be attributed to the 

 present insect ; the hind coxae are punctulate indeed, but not less 

 shining than usual. 



Seems to be uncommon in England ; but a female is 

 in Parfitt's collection, and two males and one female in 

 that of Fitch, all having the hind femora black. 

 Described b}^ Ratzeburg as an abundant and constant 

 parasite of Lasiocampa pini, L., in German3^ It takes 

 its name from the regular rows in which the cocoons are 

 usually placed on the leaves and twigs of the pine. 

 According to Brischke, the white gregarious cocoons 

 envelop the larva as with a furred coat ; see Ratz., Die 

 Waldv., pi. iii., f. S.'"' Also bred from Bomh/x riihi, L. ; 

 for a detailed account of its hatching from this species, 

 see Ratz., Ichn. d. Forst., i., 65. Ilemitelesftdvipes, Gr., 

 and areator, Gr., are hyperparasites. 



N.B. — The specimens referred to by Brischke, which 

 were determined by Reinhard, and bred from Myelupldla 

 crihrum, Schiff., are larger, with segment 3 rufous, and 

 the wings more infumated ; probably a different species. 



