150 NEUROPTERA. 
1. Progomphus zonatus. (Tab. VII. figg. 1-3.) 
Progomphus zonutus, Hagen, in Selys, Bull. Acad. Belg. xxi. pt. 2, p. 72 [53] (1854)"'; Selys & 
-Hagen, Monogr. Gomph. p. 203, t. 11. fig. 3 (details of ¢) (1858) *; Hagen, Syn. Neur. 
N, Am. p. 111 (1861) °. 
¢ (hitherto undescribed). Differs from the detailed description” of the 2, in addition to the features 
mentioned in the preceding key, as follows :—Sides of abdominal segments 2 and 3 mostly dark brown, 
except the posterior and inferior borders of 2 and the base of 3; 4-6 black, with a narrow transverse 
basal yellow ring not prolonged dorsally, 4 with an isolated linear yellow mid-dorsal spot on the middle 
of the segment, no dorsal yellow (other than the basal ring) on 5 and 6; basal two-thirds of 7 yellow, 
apical third black ; first femora pale green inferiorly ; wings but slightly smoky, costa yellow anteriorly ; 
pterostigma of front wings 5 mm. long; triangles of hind wings 2-celled. 
Hab. Mexico !~8, Rincon in Guerrero (H. H. Smith: 1 ¢ ). 
This male was taken in October; it bears a label, “ P. zonatus,” in Hagen’s hand. 
2. Progomphus clendoni, sp. n. (Tab. VII. figg. 8, 9.) 
&. The preceding description of the male P. zonatus, together with the particulars given in the key on p. 149 
for this species, applies precisely to the colours of the two males seen, excepting that abdominal segment 5 
has a yellow, linear, mid-dorsal spot on the middle in one individual, a trace of this spot in the other. 
Pterostigma 4—4°5 mm. long on front wings. Discoidal triangle of front wings 3-celled, of hind wings 
2-celled ; internal triangle of both wings 2-celled. Front wings with 15-16 antenodals, 8-10 postnodals. 
Denticulated carina on the inferior surface of the superior appendages reaching far over toward the inner 
margin, in this respect agreeing with P. zonatus and differing from P. obscurus. Inferior appendage with 
each of its branches bifid owing to the supero-external tooth being enlarged so as to be subequal to 
the apical part of the branch, instead of smaller than the apical part of the branch, as is the case in 
P, obscurus. 
Hab. Mexico, Tuxpan in Jalisco (J. F. McClendon, coll. P. P. C.: 2 3). ° 
These two males, taken on September 5th, are intermediate between P. zonatus and 
P. obscurus, having the colours and the superior appendages almost as in the first, the 
inferior appendage similar to that of the second-named. ‘The specific name is in 
honour of the collector. 
3. Progomphus obscurus. 
[a. obscurus type. 
Diastatomma obscurum, Rambur, Ins. Névr. p. 170 (1842)*. 
Progomphus odscurus, Selys, Bull. Acad. Belg. xxi. pt. 2, p. 72 [53] (1854)’; (2) xlvi. p. 658 [66] 
(partim) (1878) *; Selys & Hagen, Monogr. Gomph. p. 201 (1858) *; Hagen, Syn. Neur. N. 
Am. p. 110 (1861) °; Proc. Bost. Soc. Nat. Hist. xvii. p. 48 (1875) °; Needham, Canad. Ent. 
xxix. p. 184 (1897)’; Proc. U.S. Nat. Mus. xxvi. t. 34, fig. 2 (venation) (1903)°; Hine, 
Ohio State Univ. Nat. i. p. 13 (1900) °; Williamson, 24th Rep. Geol. Indiana, p. 283, t. 4. 
figg. 8, 4 (head) (partim) (1900)*°; Proc. Indiana Acad. Sci. 1901, p. 123 (1902)"; Ent. 
News, xiii. p. 109 (1902) *; Needham & Hart, Bull. Illinois State Lab. Nat. Hist. vi. p. 55, 
t. 1. fig. 8 (nymph) (1901); Brimley, Ent. News, xiv. p. 151 (1903) ™. 
Progomphus borealis, Hagen, Proc. Bost. Soc. Nat. Hist. xvi. p.356 (1874) °; xviii. p.48 (1875) ™*. 
Hab. Nortn America!?45, Massachusetts °® Pennsylvania !°12, Ohio ® 1°, Elkhart 
