312 THE KNTOMOl.OGIST. 



ON SOME NEW GENEEA AND SPECIES OF HYMENO- 

 PTERA (ICHNEUMONID^, CHRYSIDID^, FOSSORES, 

 AND APID^). 



By p. Cameron. 



(Continued from p. 264.) 



Ampulex brevicornis, sp. nov.* 

 Cseruleo-viridis ; antennistarsisque nigris ; femonbus posterioribus 

 rufis ; alls fusco-violaceis. ?. Long. 23-24 mm. 



Hah. Khasia (coll. Eothney). 



Antennae short, stout, about twice the length of the head ; black, 

 opaque; the tlhrd and fourth joints equal in length ; the fourth to sixth 

 joints incised at the base beneath. Head shining, smooth, except for a few 

 large deep punctures above each antenna ; each puncture bears a long 

 hair. Eyes converging slightly above, the width separating them 

 being about the length of the basal three joints of the antennae united. 

 The apex of the clypeus is largely depressed, the depression becoming 

 gradually wider towards the apex, which is not toothed ; backwards the 

 keel extends to the base of the antennae. Antennal tubercles stout ; 

 there is no keel over the antennae ; behind the head is developed to a 

 greater length than the length of the eyes. The apical part of the 

 prothorax is broader than long, the sides almost straight ; its basal 

 half bearing large deep distinctly separated punctures, and with a 

 narrow distinct longitudinal furrow. The basal half of the mesonotum, 

 except in the middle, bears large deep clearly separated punctures, and 

 is covered with long black hairs ; the middle has a distinct furrow, 

 extending from the base to near the apex. The scutellum has a row 

 of punctures round the sides and apex, as has also the post-scutellum. 

 There is no central keel on the median segment, except at the extreme 

 base ; the inner lateral lines form a large triangle, which is distinctly 

 striated ; the basal strife are slightly oblique, and arise from the 

 centre ; the apical ones go right across ; at the apex the keels are 

 waved and reach to the apex. The apex has an almost perpendicular 

 slope, is smooth at the base, the rest with curved striations, which are 

 finer on the inner side. The propleur^ smdoth ; the middle under 

 the keel striated at the apex. Mesopleur^e smooth, the upper and 

 apical parts striated ; the lower middle part more finely and closely 

 striated. Mesosternum smooth, sparsely pilose ; the furrow keeled in 

 the middle. The mesonotum at the base and sides and the greater 

 part of the median segment are more or less indigo-blue. There is no 

 distinct tooth on the apex of the median segment, only the second keel 

 on the metapleurie projects slightly. The anterior femora blue ; the 



•'= This species has the basal ventral segments formed as with Ampulex 

 assiniilis, Kohl, from Guinea, and figured by him (Annal. d. k.k. Natur. hist. 

 Hof. Mus. Wien, viii. pi. xii. f. 38), and not as in A. cognata, fig. 34, i.e. the 

 lower side is roundly curved and incised at the apex, somewhat as in A. lati- 

 frons, but not roundly dilated at the apex as in that species (c/. Kohl, I. c. 

 f. 43). The apical half, too, of the clypeus is cleft, not the apical third, as in 

 cognata. 



