THE CANADIAN ENTOMOLOGIST, 151 



captured and ate as many larvae of Myrmeleon as I had time to procure 

 for them." 



6. Larva. 



Together with the two larvae of A. Americana, Mr. Hubbard sent a 

 very similar but a little smaller one from the same locality. 



The larva is of much brighter colors, long. 17 m.m., broad 7 mm., 

 and is similar to A. Americana, but with only one tooth on the mandibles. 

 This is so entirely exceptional for Myrmeleon and Ascalaphus (only 

 Supkalasca Dietrichice, Brauer, is known with one tooth), that at first I 

 supposed it to be a deformity. Nevertheless both mandibles are entirely 

 alike, and no trace of any deformity is to be seen. The mandibles are 

 reddish-brown, shorter than in Americana, and less incurved ; internally 

 after the third basal part a strong, oblique, conical tooth, much longer and 

 larger than the basal tooth of A. Americana ; there are no bristles, but 

 the inner margin of the mandible goes behind the tooth, sloping to the tip. 

 The eye-cone is lower; antennae with three basal joints longer, conical, 

 followed by a few annulate short joints, the apical one larger ovoid. 

 Head smaller ; otherwise the whole larva, colors excepted, is entirely 

 similar to A. Americana. The color is hght yellow with a grayish tinge 

 on thorax and abdomen ; two black dots near the front of the head ; pro- 

 thorax on each side of the front margin with a transversal black band, 

 notched behind ; two large spots near the hind margin ; mesothorax and 

 metathorax on each side with a round black spot, divided by a yellow 

 line ; abdomen above with two black interrupted bands, formed by a 

 square spot on each segment ; a strong black brush directed anteriorly on 

 the side margin of segments ; the under side and legs are uniformly yel- 

 low ; head with a black anterior margin ; last segment as in Americana. 



I can not say more about this curious larva. Mr. Hubbard writes me 

 that it was collected in the same place with the others, but that he had 

 not remarked the difference of the mandibles. Perhaps he will be able to 

 solve the mystery. 



7. Acanthaclisis occitanica, V^ill. 



The life history of this species is very well described by Professor 

 Brauer ; all stages are before me. It was known long ago that among 

 the species of Acanthaclisis in America, Africa, Asia and perhaps Aus- 

 tralia, a certain number have not the si)urs broken in a right angle sud- 

 denly, and the basal part dilated as in the type. Rambur is supposed to 



