163 INSECUTOR INSClTlv^ MENSTRUUS 



tube straight or slightly curved, about eight times as long as 

 the basal width, glabrous, the pecten running nearly to the 

 middle. Tufts on the posterior margin appearing to be five 

 in a straight row ; in reality four pairs, the subapical pair dis- 

 placed longitudinally ; a small tuft anteriorly near the middle 

 and another subapically, both inconspicuous. A pair of slender 

 hooks at the tip of the tube anteriorly. Anal segment long 

 and slender, a little narrowed at base, ringed by the plate. 

 Tracheae narrow, linear. 



Larvae' ^^rom Sibley, Mississippi, "taken from grass growing 

 along the margin of a pond ; I saw none in the open. The 

 larvae are rather sluggish and not easily alarmed. The pupae 

 are the reverse, and are very active." (Andrew Fleming.) 



The larva resembles those of erraticus D. & K. and peccator 

 D. & K., but the air-tube is somewhat shorter. The head is 

 without the black spottings seen in peccator; the antennae are 

 paler at the base, but not white as in that species. The three 

 are, however, very close and difficult to distinguish. 



We originally placed the species in the subgenus Moch- 

 lostyrax on accovmt of the male genitalia ; but in fresh mounts 

 prepared from Mr. Fleming's material, the shape seems rather 

 to be that of Choeroporpa, and the larva is clearly a Choero- 

 porpa and not a Mochlostyrax. I therefore change the sub- 

 generic location. In my tables (Ins. Ins. Menstr., vi, 103-107, 

 1918), peribleptus may be erased on page 107 and inserted on 

 page 104, where it will fall with Icprincei, differing as follows : 

 Second uncal plate shallowly emarginate ; basal appendages mod- 

 erate, elliptical, oblique leprincei 



Second uncal plate deeply emarginate ; basal appendages large, 

 quadrate peribleptus 



NEW MOTHS FROM MEXICO 



(Lcpidoptera, Noctuidcc, Hadenincc) 

 By HARRISON G. DYAR 



Hydroeciodes compressipuncta, new species. 



Thorax rufous and orange, mixed with brown ; abdomen 

 brown, the basal and apical tufts lighter. Fore wing orange. 



